File: vera1

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vera 1.8-4
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file content (27130 lines) | stat: -rw-r--r-- 548,993 bytes









        

100VG
        100 Voice Grade [technology]
        
2S2D
        Double Sided - Double Density (FDD)
        
3DDDI
        3D Device Dependent Interface (MS), "3D DDI"
        
3DRAM
        3 Dimensional Random Access Memory (RAM)
        
3GIP
        3rd Generation . Internet Protocol (org., IP, GPRS, WLAN, mobile-systems), "3G.IP"
        
3GL
        3rd Generation Language
        
3GPP
        Third Generation Partnerships Projects (org.)
        
4GL
        4th Generation Language
        
4GT
        4 GB [RAM] Tuning (RAM, GB)
        
5GL
        5th Generation Language
        
80211HR
        802.11 High Rate (IEEE, WLAN), "802.11/HR"
        
8PSK
        8 Phase Shift Keying (EDGE, mobile-systems)
        
8VSB
        8-Vestigial Side Band, "8-VSB"
        

        
        









        

AA
        Auto Answer (MODEM)
        
AAA
        Authentication, Authorization and Accounting
        
AAAAA
        Anonym Association Against Acronym Abuse (slang)
        
AAAI
        American Association for Artificial Intelligence (org., AI, USA)
        
AAAS
        American Association for the Advancement of Science (org., USA)
        
AAC
        Advanced Audio Coding (IIS, MPEG)
        
AAC
        Authorization and Access Control (IETF)
        
AAD
        Authorized AutoCAD Dealer (AutoCAD, CAD)
        
AADN
        American Association of DOMAIN Names (org., USA, Internet)
        
AAE
        Allgemeine AnschaltErlaubnis (Telekom)
        
AAF
        Advanced Authoring Format (MS)
        
AAIM
        Association for Applied Interactive Multimedia (org.)
        
AAIS
        Allied command europe ACCIS Implementation Strategy (ACCIS, NATO, mil.)
        
AAL
        ATM Adaption Layer (ATM)
        
AAM
        Automatic Accoustic Management (ATA, HDD)
        
AAMSI
        American Association for Medical Systems Informatics (org., USA)
        
AAP
        Address Allocation Protocol (Multicast)
        
AAP
        Applications Access Point
        
AAP
        Association of American Publishers (org., USA)
        
AARP
        Appletalk Address Resolution Protocol (Apple, AppleTalk)
        
AASP
        ASCII Asynchronous Support Package (ASCII)
        
AAT
        Average Access Time
        
AATP
        Authorized Academic Training Program (MS, MCSD)
        
AAUI
        Apple Attachment Unit Interface (Apple, AppleTalk)
        
ABA
        American Bankers Association (org., USA, banking)
        
ABAP4
        Advanced Business Application Programming/4 (SAP, R/3, 4GL), "ABAP/4"
        
ABATS
        Automatic Bit Access Test System
        
ABBS
        Apple Bulletin Board System (Apple)
        
ABC
        Atanasoff-Berry-Computer
        
ABCD
        Altavista Business Card Directory (WWW)
        
ABEL
        Advanced Boolean Expression Language
        
ABEND
        ABnormal END (Netware)
        
ABI
        Application Binary Interface (POE)
        
ABIOS
        Advanced Basic Input Output System (IBM)
        
ABIST
        Automatic Built In Self Test (IBM)
        
ABM
        Asynchronous Balanced Mode
        
ABNF
        Augmented Backus-Naur Form (BNF)
        
ABP
        Address Book Provider (Internet)
        
ABR
        Available Bit Rate (ATM, CBR, VBR, UBR, QOS)
        
ABS
        Apple Business Systems (Apple)
        
ABUI
        Association of Banyan Users International (org., Banyan, VINES, user group, predecessor, ENA)
        
AC
        Access Concentrator (PPPoE, ADSL)
        
AC
        Access Control (Token Ring, ...)
        
AC
        Amiga Club (org., user group, Amiga)
        
AC
        Area Code
        
AC
        Automatic Computer
        
AC3
        [digital] Audio Compression - 3 (Dolby, DVD, Digital audio), "AC-3"
        
AC97
        Audio CODEC 97 (Intel, CODEC)
        
ACA
        Asynchronous Communications Adapter
        
ACAD
        AutoCAD (AutoCAD, CAD)
        
ACAS
        Application Control Architecture Services (DEC)
        
ACC
        Area Communication Controller (MODACOM)
        
ACC
        Atari Competence Center
        
ACCIS
        Automated Command and Control Information System (mil., USA)
        
ACCM
        Asynchronous Character Control Map (PPP)
        
ACCS
        Army Command and Control System (mil., USA)
        
ACCU
        Association of C and C++ Users (org., UK)
        
ACD
        Automated Call Distribution (CTI)
        
ACDC
        Alternating Current/Direct Current, "AC/DC"
        
ACDI
        Asynchronous Communications Device Interface (IBM, CM/2)
        
ACE
        Access Control Entry (AD)
        
ACE
        Advanced Computing Environment (manufacturer)
        
ACE
        ASCII Compatible Encoding (ASCII, Internet, DOMAIN)
        
ACE
        Autonomous Computer Engine (WD)
        
ACF
        Access Control Field
        
ACF
        Advanced Communications Function (IBM)
        
ACF
        Apple Communications Framework (Apple)
        
ACFC
        Address and Control Field Compression (PPP)
        
ACFNCP
        Advanced Communication Function / Network Control Program (IBM, ACF), "ACF/NCP"
        
ACFTCAM
        Advanced Communication Function / Telecommunications Access Method (IBM, ACF), "ACF/TCAM"
        
ACFVTAM
        Advanced Communication Function / Virtual Telecommunications Access Method (IBM, ACF), "ACF/VTAM"
        
ACH
        Association for Computers and the Humanities (org., USA)
        
ACIA
        Associacio Catalana d'Intelligencia Artificial (org., Spain, AI)
        
ACIA
        Asynchronous Communications Interface Adapter
        
ACID
        Analysis Console for Intrusion Databases (IDS, CERT)
        
ACID
        Atomicity - Consistency - Isolation - Durability (DB, TP)
        
ACIS
        American Commitee for Interoperable Systems (org., USA)
        
ACL
        [MS] Access Compatibility Layer (MS, DB)
        
ACL
        Access Control List (DCE, DFS, NDS, AD)
        
ACL
        Advanced CMOS Logic
        
ACL
        Agent Control Language (Agents)
        
ACL
        Association for Computational Linguistics (org., USA)
        
ACLF
        Access Control List Facility (DCE)
        
ACM
        Address Complete Message (ATM)
        
ACM
        Association for Computing Machinery (org., USA)
        
ACME
        A Company that Makes Everything (slang)
        
ACMS
        Application Control Management System
        
ACO
        AMP Communications Outlet
        
ACOPS
        Automatic CPU Overheating Prevention System (GigaByte), "A-COPS"
        
ACOT
        Apple Classrooms Of Tomorrow (Apple)
        
ACP
        Active Configuration Profile (MODEM)
        
ACP
        Auxillary Control Process
        
ACPA
        Audio Capture and Playback Adapter (IBM)
        
ACPC
        Apple Communications Protocol Card (Apple)
        
ACPI
        Advanced Configuration and Power Interface (Intel, MS, Toshiba, ACPI, OSPM)
        
ACPICA
        Advanced Configuration and Power Interface - Component Architecture (ACPI, Intel), "ACPI-CA"
        
ACPT
        Automated Corporate Planning Tool
        
ACR
        Anonymous Call Rejection
        
ACR
        Attenuation to Crosstalk Ratio (cable)
        
ACR
        Automatic Call Recording
        
ACRONYM
        Abreviation by CROping Names that Yield Meaning (slang)
        
ACS
        Access Control System (DISA)
        
ACS
        Advanced Communications System
        
ACS
        Architekten, Computer, Systeme (fair)
        
ACS
        Asynchronous Communication Server
        
ACS
        Australian Computer Science
        
ACS
        Australian Computer Society (org., Australia)
        
ACS
        Alternate character set
        
ACSE
        Association Control Service Element (OSI, ISO, DIS 8649)
        
ACSI
        Advanced/Atari Computer System Interface (Atari)
        
ACSMIB
        ATM Circuit Steering Management Information Base (ATM, MIB), "ACS-MIB"
        
ACSNET
        Academic Computing Services NETwork
        
ACSS
        Aural Cascading Style Sheets (CSS, HTML, WWW)
        
ACT
        Architecture Characterization Template (DISA)
        
ACTA
        America's Carriers Telecommunications Association (USA)
        
ACTEF
        ACcess TEchnologies Forum (org.)
        
ACTPU
        ACTivate Physical Unit (SNA)
        
ACTS
        Advanced Communications Technologies and Services (Europe, ACTS)
        
ACU
        Automatic Calling Unit
        
ACU
        Automatic Client Update (Novell, Netware)
        
ACUTA
        Association of College and University Telecommunication Administrators (org., USA)
        
AD
        Active Directory (MS, WIndows, AD, DS)
        
AD
        Analog-to-Digital (D/A), "A/D"
        
AD
        Authorized Distributor (DEC)
        
AD
        Autonomous DOMAIN
        
ADA
        Automatic Data Acquisitions
        
ADAPSO
        Association of Data Processing Service Organisation (org., USA)
        
ADAPT
        Architecture Design, Analysis, and Planning Tool
        
ADATP
        Allied DATa processing Publication (mil., USA)
        
ADB
        A DeBugger (Unix)
        
ADB
        Apple Desktop Bus (Apple)
        
ADBS
        Advanced Data Broadcasting System (DirecPC)
        
ADC
        Adaptive Data Compression (MODEM)
        
ADC
        Analog to Digital Converter
        
ADC
        Apple Display Connector (Apple)
        
ADC
        Apple Distribution Center (Apple)
        
ADC
        Automatic Data Capture
        
ADCCP
        Advanced Data Communications Control Procedure (ANSI)
        
ADD
        Adapter Device Driver (OS/2)
        
ADDC
        Automatic Data Direction Control (RS-485)
        
ADDDC
        Automatic Direct Distance Dialing System
        
ADE
        Application Development Environment
        
ADE
        Aufforderung zur DatenEingabe (BTX)
        
ADEPT
        Administrative Data Entry for Processing Transmission (mil., USA)
        
ADES
        Automatic Digital Encoding System
        
ADEW
        Andrew Development Environment Workbench (ATK, Unix)
        
ADF
        Access control Decision Function (mil., USA)
        
ADF
        Automatic Document Feeder
        
ADI
        Autocad Device Interface (CAD, AutoCAD)
        
ADI
        AUTODIN-to-DISN Interface (AUTODIN, DISN, mil., USA)
        
ADIMM
        Asynchronous Dual Inline Memory Module (DIMM, IC, Leadtek)
        
ADL
        [international conference on the] Advances in Digital Libraries (IEEE)
        
ADL
        Adventure Description Language
        
ADLC
        Asynchronous Data Link Control
        
ADM
        Add-Drop-Multiplexer
        
ADMA
        Area Division Multiple Access (mobile-systems)
        
ADMD
        ADministration Management DOMAIN (X.400)
        
ADMF
        ??? (UMTS)
        
ADMS
        Access Device Messaging Specification (banking, Visa)
        
ADMT
        Active Directory Migration Tool (MS, AD)
        
ADO
        ActiveX Data Objects (ASP, ODBC, MS, IIS)
        
ADONIS
        ADvanced On-Screen Information System, "AdonIS"
        
ADP
        Administrative Data Processing
        
ADP
        Advanced Data Processing
        
ADP
        Automatic Data Processing (ADP)
        
ADPCM
        Adaptive Delta Pulse Code Modulation
        
ADPE
        Automatic Data Processing Equipment (ADP)
        
ADPLO
        Automated Data Processing Liaison Office (ADP)
        
ADPS
        Automatic Data Processing System (ADP)
        
ADPT
        Automated Data Processing/Telecommunications (ADP), "ADP/T"
        
ADR
        Advanced Digital Recording (Streamer, Philips, OnStream)
        
ADS
        Advanced Digital System
        
ADS
        Application Development System
        
ADS
        Automatic Distribution System
        
ADS
        Automatic Documenting System (LAN)
        
ADS
        Auxiliary Data System
        
ADSI
        Active Directory Service Interface (MS, COM, AD)
        
ADSIA
        Allied Data Systems Interoperability Agency (org., NATO, mil.)
        
ADSL
        Asymmetric Digital Subscriber Line [technology] (BELLCORE, AT&T, DSL, ADSL)
        
ADSL
        Asymmetric Digital Subscriber Loop [modulation]
        
ADSP
        Advanced Digital Signal Processor (DSP)
        
ADSP
        Appletalk Data Stream Protocol (Apple, AppleTalk)
        
ADSR
        Attack, Decay, Sustain, Release [generator] (VCA, audio)
        
ADSU
        ATM Data Service Unit (ATM)
        
ADT
        Abstract Data Type
        
ADT
        Access Developer's Toolkit (MS, DB, Windows)
        
ADT
        Application Data Type
        
ADT
        Application Development Tools (IBM, AS/400)
        
ADT
        Atlantic Daylight Time [-0300] (TZ, AST)
        
ADU
        Automatic Dialing Unit
        
ADUA
        Administrative Directory User Agent
        
ADV
        Automatisierte DatenVerarbeitung
        
ADV
        staatliche Akademie fuer DatenVerarbeitung (org., Uni Boeblingen, Germany)
        
ADVS
        Automatisiertes DatenVerarbeitungsSystem
        
ADX
        Automatic Data eXchange
        
AE
        Apple Events (Apple)
        
AE
        Application Entity / Environment / Execution / Engineering (APE)
        
AEA
        American Electronics Association (org., USA)
        
AEA
        Asynchroner EmulationsAdapter (IBM)
        
AEB
        Analog Expansion Bus
        
AEC
        Advanced Error Correction (CD)
        
AEF
        Access control Enforcement Function
        
AEGIS
        Advanced Electronic Guidance and Instrumentation System
        
AEI
        Application Enabling Interface (IBM)
        
AEI
        Automatic Equipment Identification
        
AEIMP
        Apple Event Interprocess Messaging Protocol (Apple)
        
AEM
        Automatic Emulation Management (Brother)
        
AEOM
        Apple Events Object Model (Apple)
        
AEPIA
        Asociacion Espanola Para la Inteligencia Artificial (org., Spain, AI)
        
AES
        Advanced Encryption Standard (cryptography)
        
AES
        Application Environment Service / Specification (OSF)
        
AES
        Automatic Emulation Switching (Lexmark)
        
AESEBU
        Auto Engineering Society/European Broadcasting Union (Digital audio), "AES/EBU"
        
AETE
        Apple Event Terminology Extension (Apple)
        
AEUT
        Apple Event User Terminology (Apple)
        
AF
        Auxiliary carry Flag (assembler)
        
AFAIC
        As Far As I'm Concerned (slang, Usenet, IRC)
        
AFAICR
        As Far As I Can Recall (DFUe, Usenet, IRC)
        
AFAICT
        As Far As I Can Tell (DFUe, Usenet, IRC)
        
AFAIK
        As Far As I Know (slang, Usenet, IRC)
        
AFAIR
        As Far As I Recall / Remember (slang, Usenet, IRC)
        
AFAMPE
        [u.s.] Air Force Automated Message Processing Exchange (org., USA. mil.)
        
AFC
        AntiFerromagnetically Coupled [technology] (IBM, HDD)
        
AFC
        Application Foundation Classes (MS, GUI, Java)
        
AFC
        Automatic Font Change
        
AFCET
        Association Francaise pour la Cybernetique Economique et Technique (org., France)
        
AFD
        Automatic File Distribution
        
AFE
        Apple File Exchange (Apple)
        
AFEB
        AFrican EDIFACT Board (org., EDIFACT), "AF/EB"
        
AFI
        Authority and Format Indicator (NSAP, IDP)
        
AFI
        Authority Frame Identifier
        
AFII
        Association for Font Information Interchange (org., USA)
        
AFIN
        Air Force Information Network (network, USA, mil.)
        
AFIS
        AutomatisiertesFingerabdruck-InformationsSystem (INPOL)
        
AFK
        Away from Keyboard (slang, Usenet, IRC)
        
AFNET
        Air Force Network (network, USA, mil.)
        
AFP
        Advanced Function Presentation (IBM)
        
AFP
        Appletalk Filing Protocol (Apple, AppleTalk)
        
AFPA
        Advanced Function Printing Architecture (IBM)
        
AFPDS
        Advanced Function Printing Data Stream (IBM)
        
AFT
        Authenticated Firewall Traversal (IETF)
        
AFTP
        Anonymous File Transfer Protocol (FTP)
        
AFUU
        Association Francaise des Utilisateurs d'Unix (org., France, Unix)
        
AGA
        Advanced Graphics Adapter
        
AGC
        Automatic Gain Control (audio)
        
AGCH
        Access Grant CHannel (GSM, CCCH, mobile-systems)
        
AGEP
        ArbeitsGemeinschaft Elektronisches Publizieren [e.v.] (org., DTP), "AgEP"
        
AGF
        Arbeitsgemeinschaft der GrossForschungseinrichtungen [deutschlands] (org.)
        
AGFMB
        ArbeitsGemeinschaft Freier MailBoxen (org.)
        
AGNS
        AT&T Global Network Services (AT&T)
        
AGP
        Advanced / Accelerated Graphics Port (Intel, MMX, AGP)
        
AH
        [IP] Authentication Header (IPSEC, IPV6, RFC 1826, VPN)
        
AHIMA
        American Health Information Management Association (org., USA)
        
AHP
        Analytical Hierachy Process
        
AHPCRC
        Army High Performance Computing Research Center (org., USA, HPC)
        
AI
        Adobe Illustrator (Adobe)
        
AI
        Artificial Intelligence
        
AIA
        Application Integration Architecture
        
AIBO
        Artificial Intelligence roBOt (Sony, AI)
        
AIC
        [SRI] Artificial Intelligence Center (SRI, AI)
        
AIC
        AIX windows Interface Composer (AIX, IBM)
        
AICA
        Associazione Italiana per l'Informatica ed il Calcolo Automatico (org., Italy)
        
AID
        Application IDentifier (APDU)
        
AID
        Attention Interrupt ??? [key] (IBM)
        
AID
        AUTODIN Interface Device (AUTODIN, mil., USA)
        
AIDA
        Aktuelle Informationen in Deutsch zum Amiga (AC, Amiga)
        
AIDAT
        African Internet Development Action Team (org., Internet)
        
AIDS
        Automatic Installation and Diagnostic Service
        
AIFF
        Audio Interchange File Format
        
AII
        Active Input Interface (UNI, PMD, FDDI)
        
AIIA
        Associazione Italiana per l'Intelligenza Artificiale (org., Italy, AI)
        
AIIM
        Association for Information and Image Management (org., USA)
        
AIM
        Advanced Invar Mask (Display, ViewSonic)
        
AIM
        Alternate Input Method (OS/2)
        
AIM
        AOL Instant Messenger [protocol] (AOL)
        
AIM
        Apple, IBM, Motorola [consortium] (Apple, IBM, Motorola, org.)
        
AIM
        Association of Imaging Manufacturers (org.)
        
AIM
        ATM / Ascend Inverse Multiplexing [protocol] (ATM)
        
AIM
        Automatic Interface Management (Brother)
        
AIMD
        Additive-Increase Multiplicative-Decrease (TCP)
        
AIMS
        Apple Internet Mail Server (Apple)
        
AIMSRCF
        Association of Imaging Manufacturers ??? /Shared Resource Control Facility (Fujitsu), "AIM/SRCF"
        
AIN
        Advanced Intelligent Network (IN)
        
AIN
        Auto Insert Notification (CD-R)
        
AIO
        Asynchronous Input/Output
        
AIP
        Association of Internet Professionals (org., Internet)
        
AIP
        Associazione Informatici Professionisti (org., Italy)
        
AIP
        ATM Interface Processor (ATM)
        
AIR
        Automatic Image Refinement (Canon), "A.I.R."
        
AIRTC
        [international symposium on] Artificial Intelligence in Real-Time Control (IFAC, IFIP, IMACS, conference)
        
AIS
        Account Information Security
        
AIS
        Alarm Indication Signal (UNI, ATM, OAM, DS3/E3)
        
AIS
        Applied Information Sciences (manufacturer)
        
AIS
        Applied Information Systems (manufacturer)
        
AIS
        Arbeitgeber-Informations-Service (WWW)
        
AIS
        Automated Information System
        
AISB
        Association of Imaging Service Bureaus (org.)
        
AISE
        Alarm Indication Signal-External (UNI, ATM), "AIS-E"
        
AISIG
        [south australian] Artificial Intelligence Special Interest Group (org., Australia, AI)
        
AISP
        Association for Internet Service Providers (org., USA, ISP)
        
AISP
        Association of Information Systems Professionals (org., USA)
        
AISSO
        Automated Information Systems Security Officer (mil., USA)
        
AIST
        Agency of Industrial Science and Technology (org., Japan)
        
AIT
        Advanced Intelligent Tape (Sony, Streamer)
        
AIT
        Angewandte InformationsTechnik [verlags gmbh] (manufacturer)
        
AITEC
        [research institute for] Advanced Information TEChnology (org., Japan)
        
AITO
        Association Internationale pour les Technologies Objets (org.)
        
AIUI
        As I Understand It (slang, Usenet, IRC)
        
AIW
        All In Wonder [graphic card] (ATI)
        
AIW
        APPN Implementers Workshop (org., APPN)
        
AIX
        Advanced Interactive eXecutive (IBM, Unix, OS)
        
AIXESA
        Advanced Interactive eXecutive/Enterprise Systems Architecture (IBM, AIX), "AIX/ESA"
        
AJBS
        Association of Japanese Business Studies (org., Japan)
        
AK
        Application Kit (NextStep, OpenStep, Apple, Rhapsody)
        
AKA
        Also Known As
        
AKI
        Arbeitsgemeinschaft der deutschen KI Institute (org., KI)
        
AL
        Artificial Life
        
AL
        Assembly Language
        
ALAN
        Audio Local Area Network (audio), "A-LAN"
        
ALAP
        Appletalk Link Access Protocol (Apple, AppleTalk)
        
ALAP
        As Late As Possible (slang, Usenet)
        
ALC
        Adaptation Layer Controller (ATM)
        
ALC
        Arithmetic and Logic Circuits (IC)
        
ALC
        Automatic Level Control
        
ALDC
        Adaptive Lossless Data Compression (IBM)
        
ALE
        Address Lifetime Expectation (org., IETF, IP)
        
ALE
        Application Link Enabling (R/3, SAP)
        
ALE
        Atlanta Linux Enthusiasts (Linux, user group)
        
ALE
        Atomic Layer Epitaxy (IC)
        
ALEC
        Authorized Linux Education Center (Linux, Caldera)
        
ALGOL
        ALGOrithmic Language
        
ALIWEB
        Archie Like Indexing in the WEB (WWW)
        
ALK
        Automatisierte LiegenschaftsKarte (ALTIS)
        
ALM
        Application / Appware Loadable Module (Novell, Netware)
        
ALM
        Asynchronous Line Module
        
ALM
        Asynchronous Line Multiplexer
        
ALOE
        Apple Library for Object Embedding (Apple, OpenDoc)
        
ALP
        Assembly Language Processor (IBM)
        
ALR
        Advanced Logic Research, inc (manufacturer)
        
ALS
        Adjacent Link Station (IBM)
        
ALSA
        Advanced Linux Sound Architecture (Linux)
        
ALSI
        Associazione nazionale Laureati in Scienze dell'informazione e Informatica (org., Italy)
        
ALTEL
        Association of Long-distance TELephone companies (org., USA)
        
ALTERNIC
        ALTERnative Network Information Center (Internet, USA)
        
ALTS
        Association for Local Telecommunications Services (org., USA)
        
ALU
        Arithmetic and Logic Unit (CPU)
        
AM
        Active Matrix (LCD)
        
AM
        Amplitude Modulation
        
AM
        Asynchronous Mode
        
AMA
        Automatic Message Accounting
        
AMACS
        AMA Collection System (AMA)
        
AMAP
        As Much As Possible (DFUe, Usenet, IRC)
        
AMARC
        AMA Recording Center (AMA)
        
AMASE
        AMA Standard Entry (AMA)
        
AMAT
        AMA Transmitter (AMA)
        
AMATPS
        AMA TeleProcessing System (AMA)
        
AMCD
        Active Matrix Color Display (AMD, LCD)
        
AMCD
        Activity Monitoring Completion Detection
        
AMD
        Active Matrix Display (LCD)
        
AMD
        Advanced MicroDevices [inc.] (manufacturer)
        
AME
        Advanced Metal Evaporated [tape] (Seagate, Streamer)
        
AME
        Advanced Modeling Extension (AutoCAD)
        
AMEL
        Active Matrix Electro Luminescent (AMD, LCD)
        
AMH
        Automated Material Handling
        
AMHS
        Automated Message Handling System (MHS)
        
AMI
        Alternate Mark Inversion (ISDN, T1)
        
AMI
        American Megatrends Incorporation (manufacturer)
        
AMI
        ATM Management Interface (ForeRunner)
        
AMIA
        American Medical Informatics Association (org., USA)
        
AMIA
        Australian Medical Informatics Association (org., Australia)
        
AMIC
        Apple Memory-mapped I/O Controller (Apple)
        
AMIGADE
        Amiga Digital Environment (Amiga), "AmigaDE"
        
AMIGOS
        Advanced Mobile Integration in General Operating Systems
        
AMIS
        Audio Message Interface Standard
        
AML
        ACPI Machine Language (ACPI, ASL, BIOS)
        
AMLCD
        Active Matrix Liquid Crystal Display (AMD, LCD)
        
AMMA
        Advanced Memory Management Architecture
        
AMME
        Automated Multi-Media Exchange
        
AMNET
        Allgemeines Mailbox NETzwerk (BBS, network)
        
AMOK
        A Modular Operating Kernel (OS, Cray)
        
AMOS
        Alpha Microsystems Operating System (OS)
        
AMPE
        Automated Message Processing Exchange
        
AMPS
        Advanced Mobile Phone Service (mobile-systems, Motorola)
        
AMR
        Audio MODEM Riser [slot] (Intel)
        
AMS
        Advanced Monitor System (OS, DEC, PDP 9, PDP 15)
        
AMS
        American Mathematical Society (org., USA)
        
AMS
        Andrew Mail / Message System (Unix)
        
AMS
        Asymmetric Multiprocessing System
        
AMS
        AUTODIN Mail Server (AUTODIN, mil., USA)
        
AMSDOS
        AMStrad Disk Operating System (Amstrad, OS), "AMS-DOS"
        
AMT
        Active Matrix Technology (AMD, LDC)
        
AMT
        Apple Media Toolkit (Apple)
        
AMTF
        Average Modulation Transfer Function
        
AMTFT
        Active Matrix Thin Film Transistor (AMD, LCD, TFT)
        
AMTPE
        Apple Media Tool Programming Environment (Apple), "AMT PE"
        
AMWG
        Architecture Methodology Working Group (org., DISA)
        
AN
        Access Node
        
AN
        Alternating Network
        
ANBU
        ANlagenBUchhaltung
        
ANCS
        AT&T Netware Connect Services (AT&T, Netware)
        
ANDF
        Architecture Neutral Distribution Format (OSF)
        
ANFSCD
        And Now For Something Completely Different (slang, Usenet, IRC)
        
ANHR
        Access Node Hub Router (AN)
        
ANI
        Automatic Number Identification
        
ANMA
        Apple Network Managers Association (org., Apple)
        
ANMP
        Advanced ??? Network Management Protocol
        
ANN
        Artificial Neural Networks (NN)
        
ANR
        Access Node Router
        
ANS
        Advanced Network & Services Inc. (IBM, MCI. Merit, NFSnet)
        
ANS
        American National Standard (ANSI, ISO, USA)
        
ANSA
        Advanced Networked Systems Architecture (ISA)
        
ANSI
        American National Standard Institute (org., USA)
        
ANSPAG
        Advanced Network System Performance and Application Group (RDN-CRC)
        
ANTC
        Advanced Networking Test Center (org., USA, AMD, FDDI)
        
ANTS
        AT&T Novell Telephone Services (AT&T, Novell), "A/NTS" 
        
ANUML
        Australian National University Meta Language, "ANU ML" 
        
AO
        Arvutikasutaja Oskustunnistus (Org, Estonia)
        
AOA
        American Optometric Association (org., USA)
        
AOAC
        Always On, Always Connected (NBS)
        
AOCD
        Advice Of Charge, During the call
        
AOCE
        Advice Of Charge, at the End of the call
        
AOCE
        Apple Open Collaboration Environment (Apple)
        
AODI
        Always On / Dynamic ISDN (ISDN, ACTEF), "AO/DI"
        
AOE
        Application Operating Environment (AT&T)
        
AOI
        Active Output Interface (UNI, PMD, FDDI)
        
AOL
        America OnLine (network, AOL)
        
AOS
        Advanced Operating System (OS)
        
AOS
        Algebraic Operating System (IBM)
        
AOTC
        Australian Overseas Telecommunications Corporation (org., Australia)
        
AOU
        Arithmetic Output Unit
        
AOW
        Asia and Oceania Workshop (OSI)
        
AP
        Access Point (WLAN)
        
AP
        Access Provider (ETSI, ETSI 201 671)
        
AP
        Application Processor
        
AP
        Auto Precharge (SDRAM)
        
AP
        Automatic Pagination
        
APA
        Adaptive Packet Assembly
        
APA
        All Points Addressable
        
APA
        Arithmetic Processing Accelerator
        
APAR
        Authorized Program Analysis Report (IBM)
        
APC
        American Power Conversion (manufacturer, UPS)
        
APC
        ArbeitsPlatz Computer (SNI)
        
APC
        Association for Progressive Communications (org., network)
        
APCUG
        Association of Personal Computer User Groups (org.)
        
APD
        Additional Product Documentation
        
APDA
        Apple Programmers and Developers Association (org., Apple)
        
APDPR
        Advanced PDF Password Recovery (PDF)
        
APDU
        Application Protocol Data Unit (OSI, PDU, OSI/RM, APDU, ICC)
        
APE
        APplication Engineering
        
APEL
        A Portable EMACS Library (EMACS, GNU)
        
APEX
        Advanced Packet EXchange
        
APF
        Advanced Printer Function (IBM, ADT)
        
API
        Application Program Interface (API)
        
API
        Associacao Portuguesa de Informatica (org., Portugal)
        
APIC
        Advanced Programmable Interrupt Controller (Intel, PIC)
        
APIS
        Arbeitsdatei PIOS Innere Sicherheit (INPOL, PIOS)
        
APL
        A Perspicuous Language / Alles Parallel Loesbar (APL, slang)
        
APL
        A Programming Language (IBM)
        
APLSF
        A Programming Language with Shared Files (CMU, DEC)
        
APLSF
        A Programming Language with Shared Variables (IBM)
        
APLV
        Arbeitsdatei PIOS LandesVerrat (INPOL, PIOS)
        
APM
        Advanced Power Management
        
APMS
        Automated Program Management information System
        
APNIC
        Asian Pacific Network Information Center (org., Internet)
        
APO
        Advanced Planner and Optimizer (SAP, SCM)
        
APOK
        Arbeitsdatei PIOS Organisierte Kriminalitaet (INPOL, PIOS)
        
APOP
        Autenticated Post Office Protocol (Internet, POP, RFC 1734)
        
APP
        Application Portability Profile
        
APPC
        Advanced Peer-to-Peer Communications (IBM, SNA, LU 6.2)
        
APPC
        Advanced Program to Program Communication (IBM)
        
APPC
        Application Program to Program Converter (IBM)
        
APPCM
        Access Protection and Priority Control Mechanism (DQDB)
        
APPCP
        Advanced Program to Program Communications Protocol (APPC, IBM)
        
APPEL
        A P3P Preference Exchange Language (P3P)
        
APPI
        Advanced Peer to Peer Internetworking (Cisco)
        
APPN
        Advanced Peer to Peer Networking (IBM)
        
APR
        Arbeitsdatei PIOS Rauschgift (INPOL, PIOS)
        
APS
        Active Pixel Sensor
        
APS
        Application Page Server
        
APS
        Application Service Provider (WAN)
        
APS
        Asynchronous Protocol Specification
        
APSE
        Ada Programming Support Environment
        
APSE
        Agfa Publishing Systems Environment (Agfa, DTP)
        
APSL
        Apple Public Source License (Apple)
        
APT
        Address Pass Through
        
APT
        Advanced Photoscale Technology (Brother)
        
APT
        Automatically Programmed Tools
        
APTC
        Advanced Processor Temperature Control (Chaintech)
        
APTM
        Application Program to Transaction Manager (TP)
        
APW
        Arbeitsdatei PIOS Waffen (INPOL, PIOS)
        
AR
        Administrative Request [message] (LFAP)
        
ARA
        Administrative Request Acknowledge [message] (LFAP)
        
ARA
        Affiliate Registration Authority (RA, PKI, ITU)
        
ARA
        Apple[talk] Remote Access (Apple, AppleTalk)
        
ARAG
        AntiReflection AntiGlare (ViewSonic)
        
ARAP
        Apple Remote Access Protocol (Apple, AppleTalk)
        
ARB
        Architecture Review Board (OpenGL, manufacturer, org.)
        
ARC
        Advanced RISC Computing [architecture] (ACE, RISC)
        
ARCA
        Advanced RISC Computing Architecture (ACE, RISC)
        
ARCNET
        Attached Resource Computer NETwork (Datapoint), "ARCnet" 
        
ARE
        All Routes Explorer (ATM)
        
AREXX
        Amiga Restructured EXtended eXecutor [language] (Amiga, Commodore, REXX)
        
ARIN
        American Registry for Internet Numbers (org., Internet, USA)
        
ARKD
        Abuse Resistant Key Distribution (Arcade)
        
ARL
        Access Rights List (Banyan, VINES)
        
ARLL
        Advanced Run-Length Limited [encoding]
        
ARM
        Advanced RISC Machines (manufacturer, Acorn, Apple, VLSI, RISC)
        
ARM
        Annotated [c++] Reference Manual
        
ARM
        Asynchronous Response Mode
        
ARMA
        Association of Records Managers and Administrators, inc. (org.)
        
ARMS
        Architecture for Reliable Managed Storage (Cheyenne)
        
ARMS
        Automation Resources Management System
        
ARNS
        Appletalk Remote Network Server (Apple, AppleTalk)
        
ARO
        Affiliate Registration Organization (RA, PKI, ITU)
        
AROM
        Alterable Read Only Memory (ROM)
        
ARP
        Address Resolution Protocol (Internet, RFC 826)
        
ARPA
        Advanced Research Projects Agency (org., USA)
        
ARPANET
        Advanced Research Projects Agency NETwork (USA, network)
        
ARPDP
        Association of Rehabilitation Programs in Data Processing (org., USA)
        
ARQ
        Automatic Re-transmission reQuest (MODEM)
        
ARRA
        Announced Retransmission Random Access (MAC)
        
ART
        Adaptive Resonance Theory (NN)
        
ART
        Advanced Resolution Technology (Minolta)
        
ARTS
        Accelerated Ray-Tracing System (raytracing)
        
ARTS
        Asynchronous Remote Takeover Server
        
ARTT
        Asynchronous Remote Takeover Terminal
        
AS
        Advanced Server (Windows NT)
        
AS
        Authentication Service (DCE)
        
AS
        Autonomous System (IP, Internet, RFC 1930)
        
AS400
        Application System/400 (IBM), "AS/400"
        
ASA
        Advanced SCSI Architecture (SCSI)
        
ASA
        American Standards Association (org., USA, ANSI, predecessor)
        
ASAP
        As Soon As Possible (slang, Usenet, IRC)
        
ASAP
        Automatic Switching And Processing
        
ASBR
        Autonomous System Border / Boundary Router (AS)
        
ASC
        Accredited Standards Committee (org., ANSI)
        
ASC
        Additional Sense Code
        
ASC
        American Society for Cybernetics (org., USA)
        
ASC
        Authorized Support Center
        
ASC
        Automatic Contrast Selection (FAX)
        
ASCI
        Accelerated Strategic Computing Initiative
        
ASCII
        American Standard Code of Information Interchange
        
ASCSI
        Advanced Small Computer Systems Interface (SCSI)
        
ASD
        Architecture Summary Design
        
ASDSP
        Application-Specific Digital Signal Processor
        
ASE
        Active Storage Element (GigaB, IP-router)
        
ASE
        Aladdin Smartcard Environment (Fast, Aladdin)
        
ASE
        Application Service Element (ATM)
        
ASEB
        ASian EDIFACT Board (org., EDIFACT), "AS/EB"
        
ASEMH
        Army Standards Electronic Mail Host (mil., USA)
        
ASF
        Advanced Streaming Format (MS)
        
ASH
        Almquist SHell (BSD, Unix, Shell), "ash"
        
ASI
        Adapter Support Interface (IBM, LAN)
        
ASI
        Amorphous SIlicon drum (Kyocera), "aSI"
        
ASI
        Aquarius Systems International (manufacturer)
        
ASI
        Asynchronous SCSI Interface
        
ASI
        Automatic System Installation
        
ASIC
        Application Specific Integrated Circuit (IC, RL)
        
ASIM
        Arbeitskreis Simulation und Kuenstliche Intelligenz (org., GI)
        
ASIO
        Audio Stream Input/Output
        
ASIS
        American Society for Information Science (org.)
        
ASK
        Akademische Software Kooperation (org., Karlsruhe, Germany)
        
ASK
        Amplitude Shift Keying
        
ASKSAM
        Access Stored Knowledge via Symbolic Access Method (DB), "askSam"
        
ASL
        ACPI Source Language (ACPI, AML)
        
ASL
        Adaptive Speed Levelling (US Robotics)
        
ASLT
        Advanced Solid Logic Technology (IC)
        
ASM
        Advanced Server Management (Acer)
        
ASM
        Association of Systems Management (org.)
        
ASMA
        Administratively Scoped IP Multicast (RFC 2365, Multicast)
        
ASMO
        Advanced Storage Magneto Optical [disk] (Hitachi, Maxell, Matsushita, Fujitsu, Olympus, Philips, Sanyo, Sharp, Sony, LG Electronics)
        
ASMP
        ASymetric MultiProcessing [system]
        
ASMP
        ASymmetrisches MultiProzessor [system]
        
ASN1
        Abstract Syntax Notation One (OSI, ISO, IS 8824), "ASN.1"
        
ASNM
        AdvanceStack Network Management (HP)
        
ASP
        Abstract Service Primitive (OSI)
        
ASP
        Active Server Pages (HTTP, MS)
        
ASP
        Advanced Signal Processing / Processor
        
ASP
        Appletalk Session Protocol (Apple, AppleTalk)
        
ASP
        Application Service Provider / Providing (ISP, Internet)
        
ASP
        Association of Shareware Professionals (org., USA)
        
ASP
        Authorized Service Provider (Sun)
        
ASPEC
        Advanced SPectre Entropy Coding (MPEG, Digital audio)
        
ASPEN
        Automatic System for Performance Evaluation of the Network
        
ASPI
        Advanced SCSI Programming Interface (Adaptec, API, SCSI)
        
ASPIC
        Advanced SCSI Programmable Interrupt Controller (PIC, SCSI)
        
ASPIK
        Algebraic Specifications and Implementations ??? (ISDV)
        
ASPP
        Application Specific Programmable Product (ASIC, ASSP, FPGA, RL)
        
ASPS
        Advanced Signal Processing System
        
ASQ
        Automated Software Quality
        
ASQC
        American Society of Quality Control (org., USA)
        
ASR
        Automatic Server Restart (HP)
        
ASR
        Automatic Speech Recognition
        
ASSERT
        ADEPT Subsystem for Scanning of Electronic Received Traffic (ADEPT, mil., USA)
        
ASSIST
        Automated Special Security Information System Terminal (mil., USA)
        
ASSP
        Application Specific Standard Product (RL)
        
ASSPA
        ASsociation Suisse pour l'Automatique (org., Switzerland)
        
ASSR
        Agreed Set of Security Rules (mil., USA)
        
AST
        Atlantic Standard Time [-0400] (TZ, ADT)
        
ASTA
        Advanced Software Technology and Agorithms (HPCC)
        
ASTRAL
        Alliance fuer Strategic Token Ring Advancement and Leadership (manufacturer)
        
ASU
        Asynchron-Synchron Umsetzer
        
ASVD
        Analog Simultaneous Voice and Data (MODEM)
        
AT
        Advanced Technology (IBM, PC)
        
ATA
        Advanced Technology Attachment (ATA, HDD)
        
ATAG
        Authoring Tool Accessibility Guidelines (WAI)
        
ATAPI
        Advanced Technology Attachment Packet Interface (ATA)
        
ATASPI
        Advanced Technology Attachment Software Programming Interface (ATA)
        
ATC
        Address Translation Cache (CPU)
        
ATC
        Address Translation Controller (ATM)
        
ATC
        Automatic Transmission Control
        
ATCA
        Allied Tactical Communications Agency (org., NATO, mil.)
        
ATCP
        [PPP] AppleTalk Control Protocol (Apple, AppleTalk, PPP, NCP, RFC 1378)
        
ATD
        Asynchronous Time Division (ATM)
        
ATDM
        Asynchronous Time Division Multiplexer (ATD)
        
ATDMA
        Asynchronous Time Division Multiple Access (ATD)
        
ATDP
        ATtention Dial Pulse (MODEM)
        
ATDT
        ATtention Dial Tone (MODEM)
        
ATE
        Asynchronous Terminal Emulation (Banyan, VINES)
        
ATE
        ATM Terminating Equipment (SONET, ATM)
        
ATEC
        Authorized Training and Education Center (MS,  MOCS, MCSD, ATEC)
        
ATES
        Advanced Techniques integration into Efficient scientific Software (ESPRIT, CASE)
        
ATF
        Automatic Track Finding (DDS)
        
ATH
        ATtention Hang up (MODEM)
        
ATI
        Advanced Telecomunications Institute (org., USA)
        
ATI
        Asociacion de Tecnicos de Informatica (org., Spain)
        
ATIP
        Absolute Time In Pregroove (CD)
        
ATIS
        Alliance  for Telecommunications Industry Solutions (org., USA)
        
ATK
        Andrew ToolKit (Unix)
        
ATKIS
        Amtliches Topographisch-Kartographisches InformationsSystem
        
ATL
        Activex Template Library (MS, ActiceX, MSVC)
        
ATL
        Adaptive Threshold Learning (neural nets)
        
ATM
        Abstract Test Method (ISO 9646-1)
        
ATM
        Adobe Type Manager
        
ATM
        Asynchronous Transfer Mode
        
ATM
        At The Moment (slang, Usenet, IRC)
        
ATM
        Automatic Teller Machine
        
ATMARP
        ATM Address Resolution Protocol (ATM, ARP)
        
ATMP
        Ascend Tunnel Management Protocol (Ascend, RFC 2107)
        
ATMS
        Assumption based Truth Maintenance System (AI)
        
ATN
        Augmented Transition Network
        
ATOB
        ASCII TO Binary (ASCII)
        
ATOMM
        Advanced super Thinlayer and high-Output Metal Media (Fuji)
        
ATP
        Advanced Technology Partner
        
ATP
        Appletalk Transaction Protocol (Apple)
        
ATP
        Application Transaction Program (IBM, APPC)
        
ATP
        Available To Promise (SCM)
        
ATP2
        AppleTalk Phase 2 (Apple, AppleTalk)
        
ATPS
        AppleTalk Printing Services (AppleTalk, Apple)
        
ATR
        Advanced Telecommunications Research laboratory (org., Japan)
        
ATR
        Answer To Reset
        
ATR
        Automatic Terminal Recognition
        
ATRAC
        Adaptive TRansform Acoustic Coding (Sony, Digital audio, CODEC)
        
ATS
        Abstract Test Suite
        
ATS
        Administrative Terminal System
        
ATS
        Apple Terminal Services (Apple, AppleTalk)
        
ATSUI
        Apple Text Services for Unicode Imaging (Apple, Unicode)
        
ATT
        American Telephone and Telegraph, "AT&T" 
        
ATVEF
        Advanced TV Enhancement Forum (org.)
        
ATX
        Advanced Technology eXtended [format]
        
AU
        Access Unit
        
AUAI
        Association for Uncertainty in Artificial Intelligence (org., AI)
        
AUC
        AUthentication Center (GSM, mobile-systems), "AuC"
        
AUDIT
        AUtomated Data Input Terminal
        
AUDIUS
        AUssenDIenstUnterstuetzungsSystem (CAS)
        
AUE
        Andrew User Environment (Unix)
        
AUGE
        Apple User Group Europe (org., Apple, user group)
        
AUI
        Access Unit Interface
        
AUI
        Asociacion de Usarios de Internet (Internet, user group, Spain, org.)
        
AUI
        Attachment Unit Interface (ethernet)
        
AUI
        Audible User Interface (UI)
        
AUIS
        Andrew User Interface System (Unix, UI)
        
AUP
        Acceptable Use Policy (NFSNet)
        
AURP
        Appletalk Update-based Routing Protocol (Apple, Appletalk, RFC 1504)
        
AUT
        Application Under Test
        
AUTODIN
        AUTOmatic DIgital Network (DMS, DISA)
        
AUTOSEVOCOM
        AUTOmated SEcure VOice COMmunications (predecessor, SVIP, mil., USA)
        
AUTOVON
        AUTOmatic VOice Network (predecessor, DSN, DISA)
        
AUU
        ATM User-to-User (ATM)
        
AUX
        Apple UniX (Apple, Unix), "A/UX" 
        
AV
        Audio/Video, "A/V"
        
AV
        AudioVisual [macintosh] (Apple)
        
AVA
        Audio-Visual Authoring
        
AVAS
        teile-Auftragserfassungs-, Verwaltungs- und AbrufSystem (MBAG)
        
AVATAR
        Advanced Video Attribute Terminal Assembler and Recreator (BBS)
        
AVC
        Audio-Visual Connection
        
AVCD
        Audio-Visual Computer Display
        
AVD
        Alternation Voice/Data
        
AVE
        AutoCAD Visualization Extension (AutoCAD)
        
AVERT
        Anti-Virus Emergency Response Team (McAfee)
        
AVGA
        Advanced Video Graphics Array (VGA)
        
AVI
        Audio Video Interleaved (MS)
        
AVIS
        AuftragsVerwaltungs- und InformationsSYstem (MBAG)
        
AVL
        Adelson, Veslkij and Laudis [tree]
        
AVM
        AudioVisuelles Marketing und computersysteme [gmbh] (manufacturer)
        
AVPD
        Anchor Volume Descriptor Pointer (CD-R, UDF, ISO 9660)
        
AVR
        Automatic Voice Recognition
        
AVR
        Automatic Voltage Regulation (USV)
        
AVS
        Address Verification System
        
AVS
        Adult Verification System (WWW)
        
AWAC
        Audio Waveform Amplifier and Converter (Apple)
        
AWADO
        Automatischer Wechselschalter in der AnschlussDose
        
AWD
        Automatische Waehleinrichtung fuer Datenverbindungen
        
AWE
        Address Windowing Extensions (API, PAE)
        
AWE
        Autocad Windows Extension (AutoCAD)
        
AWG
        American Wire Gauge (cable)
        
AWK
        al Aho, peter Weinberger, brian Kernighan (Unix)
        
AWL
        AnWeisungsListe (DIN 19239)
        
AWOL
        Abesent WithOut Leave (DFUe, Usenet, IRC)
        
AWP
        Association of Web Professionals (org., WWW)
        
AWS
        Apple Workgroup Server (Appletalk, Apple)
        
AWT
        Abstract Windows Toolkit (Java, Sun)
        
AWTAPI
        Abstract Windows Toolkit-Application Programmer Interface (AWT, API, Java)
        
AXE
        Application eXecution Environment
        
AZEB
        Australian/new Zealand EDIFACT Board (org., EDIFACT), "AZ/EB"
        

        
        









        

B2B
        Business to Business
        
B2C
        Business to Customer
        
B8ZS
        Binary 8 Zero Suppression [encoding] (ISDN, T1)
        
BACP
        Bandwidth Allocation Control Protocol (BAP, RFC 2125)
        
BAD
        Broken As Designed (slang)
        
BADW
        Bayerische Akademie Der Wissenschaften (org.)
        
BAGEL
        Bay Area GNU Enthusiasts League (GNU, org., user group)
        
BAI
        Basic Access Interface (ISDN)
        
BALUN
        BALanced-UNbalanced [adapter] (cable), "Balun"
        
BAM
        Bidirectional Associative Memory (neural nets)
        
BAM
        Block-Availability-Map
        
BAM
        Bundesanstalt fuer Materialpruefung (org., Berlin, Germany)
        
BAP
        [PPP] Bandwidth Allocation Protocol (PPP, RFC 2125, BACP)
        
BAPC
        [PPP] Bandwidth Allocation Control Protocol (PPP, BAP, RFC 2125)
        
BAPCO
        Business Application Performance COrporation (org., Compaq, Dell, HP, IBM, MS, Lotus, Intel, ...), "BAPCo"
        
BAPI
        Business Application Programmer's Interface (SAP, R/3, API)
        
BAPT
        BundesAmt fuer Post und Telefon (org.)
        
BAR
        Base Address Register (IC)
        
BARRNET
        Bay Area Regional Research NETwork (network), "BARRNet"
        
BART
        Basic Application RunTime (OS/2, IBM)
        
BARWAN
        Bay Area Research Wireless Access Network (network, USA)
        
BAS
        Basic Activity Subset
        
BASH
        Bourne-Again SHell (Unix, Shell)
        
BASIC
        Beginner's All-purpose Symbolic Instruction Code
        
BASIN
        Bundesweites Alternatives Studentisches InformationsNetzwerk (WWW, org.)
        
BAT
        Baby Advanced Technology [board] (AT)
        
BAYSIS
        BAY networks' Switched Internetworking Services, "BaySIS"
        
BB
        BridgeBoard (Amiga, Commodore)
        
BBC
        Broadband Bearer Capability (B-ISDN)
        
BBIAB
        [I'll] Be Back In A Bit (DFUe, Usenet, IRC)
        
BBIAM
        Be Back In A Minute (slang, Usenet, IRC)
        
BBL
        Be Back Later (slang, Usenet, IRC)
        
BBN
        Bolt, Beranek and Newman (manufacturer)
        
BBNS
        BroadBand Network Services
        
BBR
        Back Bone Ring
        
BBS
        Bulletin Board System (DFUe)
        
BCAM
        Basic Communication Access Method
        
BCBDS
        Broadband Connectionless Data Bearer Service (B-ISDN)
        
BCC
        Base Communications-computer Center (mil., USA)
        
BCC
        Blind Carbon Copy (DFUe)
        
BCC
        Block Check Character
        
BCCH
        Broadcast Control CHannel (GSM, mobile-systems)
        
BCD
        Binary Coded Decimal
        
BCDBS
        Broadband Connectionless Data Bearer Service (ATM)
        
BCDIC
        Binary Coded Decimal Interchange Code
        
BCDMA
        Broadband Code Division Multiple Access (Interdigital, SNI, Samsung), "B-CDMA"
        
BCF
        Base station Control Function (BS, BTS, GSM, mobile-systems)
        
BCI
        Batibus Club International (org.)
        
BCI
        Brain Computer Interface
        
BCM
        Basic Control Monitor (OS, Xerox, Xerox 530)
        
BCN
        Backbone Concentrator Node (Wellfleet)
        
BCOB
        Broadband Class of Bearer (B-ISDN)
        
BCP
        [Internet] Best Current Practice (Internet, RFC)
        
BCP
        [PPP] Bridging Control Protocol (PPP, RFC 1638)
        
BCP
        Basic Call Process (IN)
        
BCP
        Binary Communications Protocol
        
BCP
        Binary Control Protocol (Adobe, PS)
        
BCPL
        Basic / BBN  Combined Programming Language (BBN)
        
BCRFS
        Bell System Reference Frequency Standard
        
BCS
        Banking Communication Standard (banking)
        
BCS
        Basic Combined Subset
        
BCS
        Basic Control System (OS, HP, HP 2100)
        
BCS
        Binary Compatibility Standard (Motorola)
        
BCS
        Block Check Sequenz (GPRS, GSM, mobile-systems)
        
BCS
        British Computer Society (org., UK)
        
BCSM
        Basic Call State Model (IN)
        
BCU
        Bus Controller Unit
        
BDA
        BIOS Data Area (BIOS)
        
BDA
        Borland DAtabase (Borland, DB)
        
BDA
        BundesDatenAutobahn [e.v] (org., ISP)
        
BDAM
        Basic Direct Access Method (DAM)
        
BDC
        Backup DOMAIN Controller (MS, Windows NT, PDC)
        
BDE
        BetriebsDatenErfassung
        
BDE
        Borland Database Engine (Borland, Delphi, DB)
        
BDF
        Bitmap Description / Display Format (Adobe, Fonts)
        
BDK
        [java]Beans Development Kit (Java)
        
BDOS
        Basic Disk Operating System (CP/M)
        
BDR
        Bus Device Request (SCSI)
        
BDSG
        BundesDatenSchutzGesetz Germany
        
BEAT
        Best Enhanced Advanced Technology (Trident, AT)
        
BEB
        Binary Exponential Backoff (CSMA/CD, LIB)
        
BEC
        Back-End-Chip (DVR)
        
BECEEP
        BErlin Continuing Engineering Education Program, "BeCEEP"
        
BECN
        Backward Explicit Congestion Notification (ATM)
        
BED
        Bookmark Exploring Dabbler (VRML)
        
BEDO
        Burst EDO [DRAM] (EDO, RAM, DRAM, IC, Micron)
        
BEDODRAM
        Burst Extended Data Out DRAM (RAM, DRAM, IC), "BEDO-DRAM"
        
BEEV
        Bundesverband der Elektronik- und ElektroschrottVerwerter (org.)
        
BEF
        Brightness Enhancement Foile (LCD)
        
BELLCORE
        BELL COmmunications REsearch (org., USA), "Bellcore"
        
BEOS
        Be Operating System (OS), "BeOS"
        
BER
        Basic Encoding Rules [for ASN.1] (ASN.1, OSI, ISO, IS 8825)
        
BER
        Bit Error Rate
        
BERKOM
        BERliner KOMmunikationssystem (network)
        
BERT
        Bit Error Rate Test
        
BES
        Block Ended by Symbol (IBM, assembler)
        
BES
        Bursty Errored Seconds (DS1/E1)
        
BEST
        Borland Enhanced Support and Training (Borland)
        
BEST
        Business Executive System for Timesharing (OS, Qantel)
        
BEVU
        Bundesvereinigung mittelstaendischer Elektro- und elektronikgeraete entsorgungs- und VerwertungsUnternehmen Org., Germany
        
BEW
        Business Engineering Workbench (R/3, SAP)
        
BF
        Bus Fraction [pin] (Intel, Pentium, CPU)
        
BFD
        Binary File Descriptor (Unix)
        
BFN
        Bye For Now (slang, IRC, Usenet)
        
BFOC
        Bayonet Fiber Optic Connector
        
BFT
        Binary File Transfer (DFUe)
        
BGA
        Ball Grid Array (CPU, IC)
        
BGI
        Borland Graphics Interface (Borland)
        
BGP
        Border Gateway Protocol (RFC 1267/1771, IP)
        
BGT
        Broadcast and Group Translators
        
BHCA
        Busy Hour Call Attempts
        
BHLI
        Broadband High Layer Information, "B-HLI" 
        
BHN
        Bayerisches Hochschulnetz (network)
        
BHT
        Branch History Table (CPU)
        
BI
        Breidbart-Index (Usenet, ECP, EMP)
        
BIAB
        Back In A Bit (DFUe, Usenet, IRC)
        
BIB
        Bus Interface Board
        
BIC
        Bit Independence Criterion (cryptography)
        
BIC
        Bus Interface Chip (DVR)
        
BICI
        Broadband InterCarrier Interface (B-ISDN), "B-ICI" 
        
BIDI
        BIDirectional
        
BIDS
        Borland International Data Structures (Borland)
        
BIF
        Benchmark Interchange Format (PLB)
        
BIF
        Built In Function (REXX)
        
BIG
        Bionet Intelligent Gateway (BioData)
        
BIGFON
        Breitbandiges Integriertes Glasfaser-Fernmelde-OrtsNetz
        
BIKOS
        BueroInformations- und KOmmunikationsSysteme (org., GI)
        
BIM
        Broadband Interface Module
        
BIMA
        British Interactive Multimedia Association (org., UK)
        
BIND
        Berkeley Internet Name DOMAIN [software] (Unix)
        
BIOS
        Basic Input Output System / Support (PC)
        
BIP
        Bit Interleaved Parity (SONET, ...)
        
BIPV
        Bit Interleaved Parity Violation
        
BIRA
        Belgian Institute for Automatic Control (org., Belgium)
        
BIS
        Business Information System
        
BISDN
        Broadband Integrated Services Digital Network (ATM), "B-ISDN" 
        
BISP
        Business Information System Program
        
BISSI
        Broadband Inter-Switching System Interface (B-ISDN), "B-ISSI" 
        
BISUP
        Broadband ISDN User's Part (B-ISDN), "B-ISUP"
        
BISYNC
        Binary SYNchronous Communications (IBM)
        
BIT
        Basic Interconnection Test (ISO 9646-1)
        
BIT
        Binary digIT
        
BITNET
        Because It's Time NETwork (network)
        
BIU
        Bus Interface Unit
        
BIX
        Byte Information eXchange
        
BJT
        Bipolar Junction Transistor (IC)
        
BK
        Buero Kommunikation
        
BKS
        BenutzerKoordinatenSystem (CAD)
        
BL
        Blue Lightning [processor family] (Intel)
        
BLADE
        Basic Linear Algebra for Distributed Environments
        
BLAST
        BLocked ASynchronous Transmission
        
BLER
        BLock Error Rate (CD)
        
BLLI
        Broadband Low Layer Information (BISDN), "B-LLI" 
        
BLM
        Bayerische Landeszentrale fuer neue Medien (org.)
        
BLMX
        Board-Level Multitasking eXecutive (OS)
        
BLOB
        Binary Large OBject
        
BLOROB
        BLOck based ROBot
        
BLSM
        Base Level System Modernization
        
BLT
        BLock Transfer
        
BMBF
        BundesMinisterium fuer Bildung und Forschung (org.)
        
BMBW
        BundesMinisterium fuer Bildung und Wissenschaft (org.)
        
BMDP
        Bio-Medical Data Package
        
BMECAT
        Bundesverband Materialwirtschaft, Einkauf und Logistik CATalog data exchange format (XML), "BMEcat"
        
BMFT
        BundesMinisterium fuer Forschung und Technik (org.)
        
BML
        Bean Markup Language (Java)
        
BML
        Business Management Layer (TMN)
        
BMOS
        Bipolar Metal Oxide Semiconductor (IC)
        
BMS
        Basic Mapping Support (CICS)
        
BMS
        Basic Monitor System (OS, DEC, PDP 9, PDP 15)
        
BMS
        Broadcast Message Server (PCTE)
        
BMT
        Biel Mean Time (TZ, Internet)
        
BMTA
        Backbone Message Transfer Agent (MTA)
        
BMUG
        Berkeley Macintosh User Group (org., Apple, USA, user group)
        
BMWI
        BundesMinisterium fuer WIssenschaft und technologie (org.)
        
BN
        Bridge Number
        
BNC
        Baby N Connector (slang)
        
BNC
        Bayonet Neill Concelman [connector]
        
BNC
        Bayonet Nipple Connector (slang)
        
BNC
        Bayonet Nut Coupling ???
        
BNC
        British Naval Connector
        
BND
        BundesNachrichtenDienst
        
BNF
        Backus-Naur Form (TTCN, ...)
        
BNP
        Broadband Network Premises
        
BNT
        Broadband Network Termination (B-ISDN), "B-NT"
        
BNU
        Basic Networking Utilities (AT&T)
        
BO
        Back Orifice (CDC)
        
BOA
        Basic Object Adapter
        
BOCA
        Borland Object Component Architecture (Borland)
        
BOD
        Business Object Documents (OAG)
        
BOF
        Birds Of a Feather (Usenix)
        
BOM
        Beginning of Message
        
BOM
        Byte Order Mark (Unicode)
        
BONDING
        Bandwidth ON Demand INteroperability Group (org., manufacturer, AIM)
        
BOPS
        Billion Operations Per Second
        
BORSCHT
        Battery, Overvoltage, Ringing, Signalling, Coding, Hybrid, Testing [functions] (PBX)
        
BOS
        Basic Operating System (AIX, IBM)
        
BOS
        Batch Operating System (OS, Honeywell)
        
BOS360
        Basic Operating System / 360 (OS, S/360, IBM), "BOS/360"
        
BOS5
        Business Operating Software /5 (OS), "BOS/5"
        
BOSS
        Basic OS Software for BASIC (OS, BASIC)
        
BOT
        Back On Topic (slang, Usenet, IRC)
        
BOT
        Beginning Of Tape
        
BOT
        Broadcast Online TV
        
BOT
        Build, Operate and Transfer (networke)
        
BP
        Base Pointer [register] (CPU, Intel, assembler)
        
BPB
        BIOS Parameter Block (BIOS, DOS, HDD, FDD)
        
BPC
        Broadcast Personal Computer (PC)
        
BPD
        BankParameterDaten (DDBAC)
        
BPDU
        Bridge Protocol Data Unit (PDU)
        
BPF
        Berkeley Packet Filter (BSD, Unix)
        
BPI
        Bits Per Inch (HDD)
        
BPIP
        Best Play for Imperfect Player (NEC)
        
BPL
        Bytes Per Line
        
BPN
        Back-Propagation Net (NN)
        
BPP
        Bits Per Pixel
        
BPP
        Bridge Port Pair
        
BPS
        Bits Per Second (MODEM)
        
BPSK
        Bi-Phase Shift Keying [modulation]
        
BPU
        Branch Prediction Unit (CPU, MMX, Intel)
        
BPU
        Branch Processing Unit (CPU)
        
BPV
        BiPolar Violation [error event] (DS1/E1, DS3/E3)
        
BR
        Boundary Representation (CAD, CAM)
        
BRAIN
        Berlin Research Area Information Network (network)
        
BRAM
        Broadcast Recognition Access Method (MAC)
        
BRAP
        Broadcast Recognition with Alternating Priorities (MAC)
        
BRB
        Be Right Back (slang, Usenet, IRC)
        
BREW
        Binary Runtime Environment for Wireless (CDMA, Oualcomm)
        
BRF
        Benchmark Reporting Format (PLB)
        
BRI
        Basic Rate Interface (ISDN)
        
BRI
        Bridge Router Interface ??? (Banyan, VINES)
        
BRIEF
        Basic Reconfigurable Interactive Editing Facility
        
BRIM
        Bridge/Router Interface Module
        
BRS
        Big Red Switch
        
BRTB
        Berlin Regional TestBed (WIN)
        
BS
        BackSpace
        
BS
        BackSpace one record (IBM, VM/ESA, CP)
        
BS
        Banded Signaling
        
BS
        Base Station (LA, GSM, mobile-systems)
        
BS
        BetriebsSystem
        
BS2000
        BetriebsSystem 2000 (SNI, OS)
        
BSA
        Backbone Service Area
        
BSA
        Business Software Alliance (org., manufacturer)
        
BSAM
        Basic Sequential Access Method (IBM, MVS, SAM)
        
BSC
        Balanced ScoreCard
        
BSC
        Base Station Controller (BS, BTS, GSM, GPRS, mobile-systems)
        
BSC
        Binary Synchronous Coded
        
BSC
        Binary Synchronous Communications [protocol] (IBM)
        
BSCM
        Binary Synchronous Communications Module
        
BSD
        Berkeley System / Software Distribution (manufacturer, Unix, OS)
        
BSDI
        Berkeley Software Design Incorporated (manufacturer)
        
BSDL
        Berkeley/San Diego License
        
BSI
        Bentley Systems, Incorporated (manufacturer)
        
BSI
        British Standards Institute (org., UK)
        
BSI
        Bundesamt fuer Sicherheit in der Informationstechnik Org., Germany
        
BSIC
        Base Station Identification Code (BS, BCCH, GSM, mobile-systems)
        
BSMTP
        Batched Simple Mail Transfer Protocol (SMTP)
        
BSP
        BetriebsSystemProzessor (Windows NT, SMP)
        
BSP
        Binary Space Partioning [tree]
        
BSR
        BootStrap Router (PIM, RP, Multicast)
        
BSS
        Base Station System / Subsystem (GPRS, BSC, BTS)
        
BSS
        Basic Service Set (WLAN)
        
BSS
        Basic Synchronized Subset
        
BSS
        Block Started by Symbol (IBM, assembler, Unix)
        
BSS
        Block Storage Segment
        
BSS
        Broadband Switching System
        
BSSMAP
        Base Station System Management Application Part (RR, BS, MTP, GSM, mobile-systems)
        
BST
        Bering Strait Time [-1100] (TZ)
        
BST
        Brazil Standard Time [-0300] (TZ)
        
BST
        British Summer Time [+0100] (TZ, UK)
        
BSVC
        Broadcast Switched Virtual Connections (ATM)
        
BT
        Baghdad Time [+0200] (TZ)
        
BT
        Bering Time [-1100] (TZ)
        
BT
        BlueTooth
        
BT
        British Telecom (org.)
        
BT
        Burst Tolerance
        
BT
        Bus Terminator
        
BTAM
        Basic Tape Access Method (BS2000)
        
BTAM
        Basic Telecommunications Access Method (IBM)
        
BTB
        Branch Target Buffer (CPU)
        
BTC
        Biting The Carpet (slang, Usenet)
        
BTDT
        Been There, Done That (slang, Linux, Kernel)
        
BTE
        Broadband Terminal Equipment (B-ISDN), "B-TE"
        
BTL
        Bell Telephone Laboratories
        
BTLB
        Block Translation Look-aside Buffer (CPU)
        
BTM
        Batch Time-sharing Monitor (OS)
        
BTM
        Benchmark Timing Methodology (PLB)
        
BTOA
        Binary TO ASCII (ASCII)
        
BTRON
        Business TRON (TRON)
        
BTS
        Base Transceiver Station entities (BCF, BS, GSM, GPRS, mobile-systems)
        
BTS
        Bug Tracking System
        
BTU
        Basic Transmission Unit (IBM, SNA)
        
BTW
        By The Way (slang, Usenet, IRC)
        
BTX
        BildschirmTeXt (network, Datex-J, Telekom), "Btx"
        
BTXVST
        BildschirmTeXt-VermittlungsSTelle (BTX), "Btx-VSt"
        
BUI
        Bus Interface Unit (DEC)
        
BUS
        Broadcast and Unknown Server (ATM, LANE)
        
BV
        BildVerarbeitung
        
BVB
        BundesVerband fuer Buero- und informationssysteme [e.v.] (org.)
        
BVCP
        [PPP] Banyan VINES Control Protocol (RFC 1763, Banyan, VINES, PPP)
        
BVIT
        BundesVerband InformationsTechnologien [e.v.] (org.)
        
BW
        Business Warehouse (DWH)
        
BWBM
        Bandwidth Balancing Mechanism (DQDB)
        
BWCC
        Borland Windows Custom Controls (Borland, DLL)
        
BZR
        BefehlsZaehlRegister (IC)
        
BZR
        Bit Zone Recording (ROD)
        
BZR
        BundesZentralRegister (IC)
        
BZT
        Bundesamt fuer Zulassungen in der Telekommunikation (org., Telekom)
        

        
        









        

C128
        Commodore 128 [computer] (Commodore)
        
C2IS
        Command and Control Information Systems (mil., USA)
        
C3I
        Command, Control, Communications and Intelligence (mil., USA)
        
C3IIS
        Command, Control, Communications and Intelligence Information Systems (mil., USA), "C3I/IS"
        
C4
        Command, Control, Communications and Computers (mil., USA)
        
C4I
        Command, Control, Communications, Computers and Intelligence (mil., USA)
        
C64
        Commodore 64 [computer] (Commodore)
        
CA
        Cell Arrival (ATM)
        
CA
        Certification Authority (cryptography)
        
CA
        Computer Animation
        
CA
        Computer Associates (manufacturer)
        
CAAD
        Computer Aided Architectural Design
        
CABS
        Carrier Access Billing System
        
CABS
        Computer Aided Business Simulation
        
CAC
        Channel Access Code (Bluetooth)
        
CAC
        Computer Aided Crime
        
CAC
        Connection Admission Control (UNI, ATM)
        
CACEAS
        Computer-Assisted Circuit Engineering and Allocating System
        
CACTIS
        Community Automated Counter-Terrorism Intelligence System (mil., USA)
        
CAD
        Computer Aided  Dispatch / Drafting
        
CAD
        Computer Aided Design (CIM)
        
CADE
        Computer Aided Document Engineering (Microstar)
        
CADS
        Computer-Assisted Display System
        
CAE
        Client Application Enabler (IBM, DB)
        
CAE
        Common Application Environment (X/Open)
        
CAE
        Computer Aided Education
        
CAE
        Computer Aided Engineering (CIM)
        
CAI
        Computer Aided Inspection (CIM)
        
CAI
        Computer Aided Instruction
        
CAIP
        Computer Analysis of Images and Patterns (conference)
        
CAIS
        Common APSE Interface Specification
        
CAIT
        Center for the Application of Information Technology (org., USA)
        
CAIT
        Central Academy of Information Technology (org., MITI)
        
CAL
        Client Access License (Lotus, MS)
        
CAL
        Computer Aided Logistics
        
CAL
        Computer Assisted Learning
        
CALEA
        Communications Assistance Law Enforcement Act (USA)
        
CALS
        Computer aided Acquisition and Logistics Support
        
CALS
        Continuous Aquisition and Life-cycle Support
        
CAM
        Common Access Method (SCSI)
        
CAM
        Computer Aided Manufacturing
        
CAMAC
        Computer Automated Measurement And Control
        
CAMM
        Computer Assisted Material Management
        
CAN
        Complete Area Networks (SNI)
        
CAN
        Controller Area Network
        
CAO
        Computer Aided Office
        
CAP
        Carrierless Amplitude Phase [modulation] (ADSL, AT&T)
        
CAP
        Communications-electronics Accommodation Program
        
CAP
        Component Approval Process
        
CAP
        Computer Aided Planning (CIM)
        
CAP
        Computer Aided Publishing
        
CAPE
        Computer Applications in Production and Engineering (conference, IFIP)
        
CAPI
        Communication Application Program Interface (ISDN, API)
        
CAPI
        Cryptography Application Programming Interface (cryptography, API)
        
CAPP
        Computer Aided Process Planning
        
CAPSL
        CAnnon Printing System Language (Canon), "CaPSL"
        
CAQ
        Computer Aided Quality [control]
        
CAR
        Central Access Routing (RND)
        
CAR
        Computer Aided Retrieval
        
CAR
        Computer Assisted Radiology
        
CARCAS
        Computer Aided aRchiving and Change Accounting System
        
CARDS
        Central Archive for Reusable Defense Software (mil., USA)
        
CARDVM
        Card Virtual Machine (Java, Sun), "CardVM"
        
CARE
        Computer Assistance Resource Exchange
        
CARLOS
        Computer Aided Real Language Orthographic System
        
CAS
        Column Address Strobe (IC, DRAM)
        
CAS
        Communicating Applications Specification (FAX, Intel, DCA)
        
CAS
        Computer Aided Selling
        
CAS
        Computer Algebra System
        
CAS
        Computerized Autodial System
        
CASE
        Common Application Service Element (ISO, OSI)
        
CASE
        Computer Aided Software Engineering
        
CASH
        Computer Aided Service Handling (Ashton-Tate), "C.A.S.H."
        
CAST
        ??? (cryptography)
        
CAST
        Computer Aided Software Testing
        
CAT
        Central Alaska Time [-1000] (TZ)
        
CAT
        Common Authentication Technology (IETF, RFC 1511)
        
CAT
        Computer Aided Technology (fair)
        
CAT
        Computer Aided Telephony
        
CAT
        Computer Aided Testing
        
CATI
        Computer Aided Telephone Interviewing
        
CATIS
        Computer-Assisted Tactical Information System (mil., USA)
        
CATNIP
        Common ArchiTecture for Next generation Internet Protocol (IPNG, RFC 1707)
        
CATS
        CodeWarrior Analysis Tools
        
CAUCE
        Coalition Against Unsolicited Commercial Email (org., Internet, spam, UCE)
        
CAV
        Constant Angular Velocity (CD, HDD, MOD)
        
CAVE
        Cave for Automated Virtual Environment (VR)
        
CAVO
        Computer Associates - Visual Objects (CA, DB), "CA-VO"
        
CBASIC
        Commercial Beginners All purpose Symbolic Instruction Code (BASIC)
        
CBC
        Cipher Block Chaining [mode] (DES, DESE, RC5, cryptography)
        
CBCP
        CallBack Control Protocol
        
CBCS
        Computer Based Conversation System (BBS)
        
CBDF
        Character Bitmap Distribution Format (Adobe)
        
CBDS
        Connectionless Broadband Data Service (Europe)
        
CBE
        Certified Banyan Engineer (Banyan, VINES)
        
CBEMA
        Computer & Business Equipment Manufacturers Association (org.)
        
CBF
        Code Behind Form (MS, Access, DB)
        
CBGA
        Ceramic Ball and Grid Array (IC)
        
CBIOS
        Compatibility Basic Input Output System (IBM, BIOS)
        
CBMS
        Connectionless Broadband Data Service
        
CBQ
        Class Based Queueing
        
CBR
        Constant Bit Rate (ATM, VBR, ABR, UBR, QOS)
        
CBS
        Certified Banyan Specialist (Banyan, VINES)
        
CBSR
        Candidate BootStrap Router (PIM, BSR, Multicast), "C-BSR"
        
CBT
        Canon Buffer Transmission (Fax)
        
CBT
        Computer-Based Training
        
CBT
        Core Based Tree [multicast protocol] (IP, RFC 1949/2189, ST, Multicast)
        
CBX
        Computerized Branch eXchange (PBX)
        
CC
        Carbon Copy
        
CC
        Continuity Cell (ATM)
        
CC
        Country Code (MS-ISDN, GSM, mobile-systems)
        
CC
        Cross Connector
        
CCAF
        Call Control Agent Function (IN)
        
CCC
        Chaos Computer Club (org.)
        
CCC
        Computer Control Center
        
CCC
        Cube Connected Cycles (MP)
        
CCCA
        Campus Computer Communication Association (org., USA)
        
CCCH
        Common Control CHannel (GSM, mobile-systems)
        
CCCI
        Center for Cyber Communities Initiative (org., Japan)
        
CCD
        Charge Coupled Device
        
CCE
        [visual basic] Control Creation Edition (VB, ActiveX, MS)
        
CCE
        Connection Control Entity
        
CCETT
        Centre Commun d'Etudes de Telediffusion et Telecommunications (org., France)
        
CCF
        ??? (org.)
        
CCF
        Capsulated Color Filter (NEC)
        
CCF
        Central Computer Facility
        
CCF
        Connection Control Function (IN)
        
CCF
        Controller Configuration Facility
        
CCFL
        Cold Cathode Fluorescent Lamp (LCD)
        
CCFT
        Cold Cathode Fluorescent Tube (LCD, Display)
        
CCIRN
        Coordinating Committee of International Networks (org.)
        
CCIS
        Common Channel Interoffice Signaling (AT&T)
        
CCITT
        Comite Consultatif International Telegraphique et Telephonique (org., ITU, predecessor)
        
CCL
        Cerberus Central Limited (manufacturer)
        
CCM
        Change Configuration Management
        
CCNC
        Common Channel Network Controller
        
CCNC
        Computer / Communications Network Center
        
CCNUMA
        Cache-Coherent Non Uniform Memory Access (SMP, NUMA), "cc-NUMA"
        
CCP
        [PPP] Compression Control Protocol (PPP, RFC 1962)
        
CCP
        Command Console Processor (CP/M)
        
CCP
        Communications Control Program (OS, IBM)
        
CCP
        Compact Communication Products (TPS)
        
CCR
        Commitment, Concurrency and Recovery (OSI)
        
CCR
        Current Cell Rate (ATM)
        
CCRMA
        Center for Computer Research in Music and Acoustics (org., Stanford, UK)
        
CCS
        Cambridge Cybernetic Society (org.)
        
CCS
        Coded Character Set (CCS, Unicode)
        
CCS
        Common Channel Signaling (IN)
        
CCS
        Common Command Set (SCSI)
        
CCS
        Common Communications Support (IBM, SAA)
        
CCS
        Communications-Computer Systems, "C-CS"
        
CCS
        Cyprus Computer Society (Org, Zypern)
        
CCS7
        Common Channel signaling System 7 (IN, Telekom, CCITT)
        
CCSID
        Coded Character Set IDentification (IBM)
        
CCSY
        Cooperative Computing System Program (HP)
        
CCT
        China Coast Time [+0800] (TZ)
        
CCTA
        Central Computer and Telecommunications Agency (org., UK)
        
CCTLD
        Country Code Top Level DOMAIN (Internet, ICANN), "ccTLD"
        
CCU
        Cache Control Unit (Wyse)
        
CCU
        Customer Control Unit
        
CCV
        C-bit Coding Violation [error event] (DS3/E3)
        
CCW
        COM Callable Wrapper (MS, COM, Java)
        
CD
        Carrier Detect (MODEM, RS-232)
        
CD
        Change Directory (DOS, Unix, OS/2)
        
CD
        Committee Draft (ISO)
        
CD
        Compact Disk (CD)
        
CDA
        Communications Decency Act (Internet, USA)
        
CDA
        Compound Document Architecture (DEC)
        
CDB
        Command Descriptor Block
        
CDBS
        Connectionless Data Bearer Service
        
CDBX
        Computerized Digital Branch eXchange (PBX)
        
CDC
        Connected Device Configuration (JVM)
        
CDC
        Control Data Corporation (manufacturer)
        
CDC
        Cult of the Dead Cow (org.), "cDc"
        
CDD
        Component Design Document
        
CDDA
        Compact Disk - Digital Audio (CD, Digital audio), "CD-DA" 
        
CDDI
        Copper Distributed Data Interface (FDDI, UTP)
        
CDE
        Certified Directory Engineer (Novell, Netware)
        
CDE
        Common Desktop Environment
        
CDE
        Compact Disk - Erasable (CD), "CD-E" 
        
CDE
        Cooperative Development Environment (Oracle)
        
CDF
        Channel Definition Format (MS, Internet, XML)
        
CDF
        Compound Document Framework (IBM, OLE)
        
CDFS
        Compact Disk File System (CD, OS/2, IBM)
        
CDG
        Compact Disk + Graphics (CD), "CD+G" 
        
CDI
        Compact Disk - Interactive (CD), "CD-I" 
        
CDIF
        CASE Data Interchange Format (CASE)
        
CDK
        Control Development Toolkit (MS, VB)
        
CDM
        Compressed Data Mode
        
CDMA
        Code Division Multiple Access (DFUe)
        
CDMIDI
        Compact Disk + Musical Instruments Digital Interface (CD, MIDI), "CD+MIDI" 
        
CDMO
        Compact Disk - Magneto Optical (CD), "CD-MO" 
        
CDMS
        Communication Driver Maintenance System (ISDN, HST)
        
CDNC
        Chinese DOMAIN Name Consortium (org., Internet, DOMAIN)
        
CDO
        Collaboration Data Objects (WSH, MS)
        
CDPC
        Cellular Digital Packet Data
        
CDPD
        Cellular Digital Packet Data (mobile-systems)
        
CDR
        Compact Disk - Recordable (CD), "CD-R" 
        
CDRA
        Character Data Representation Architecture
        
CDRAM
        Cached Dynamic Random Access Memory (RAM, DRAM, IC)
        
CDRM
        Cross DOMAIN Resource Manager (VTAM, SSCP, IBM)
        
CDROM
        Compact Disk - Read Only Memory (CD, ROM), "CD-ROM" 
        
CDROMXA
        Compact Disk - ROM / eXtended Architecture (CD, MPC, ROM), "CD-ROM/XA" 
        
CDRW
        Compact Disk - ReWritable (CD), "CD-RW"
        
CDS
        Cell Directory Service (DCE)
        
CDS
        Current Directory Structure (BIOS. DOS)
        
CDSA
        Common Data Securuty Architecture (HP, cryptography)
        
CDSS
        Creative Decision Stimulation Systems (AI, DSS)
        
CDT
        Cell Delay Tolerance (ATN)
        
CDT
        Central Daylight Time [-0500] (TZ, CST, USA)
        
CDTV
        Commodore Dynamic Total Vision (Commodore)
        
CDV
        Cell Delay Variation (UNI, ATM, QOS)
        
CDVT
        Cell Delay Variation Tolerance (UNI, ATM, CDV)
        
CDWO
        Compact Disk - Write Once (CD), "CD-WO" 
        
CE
        Communaute / Comunique Europeenne (Europe)
        
CE
        Communications-Electronics, "C-E"
        
CE
        Compact Edition (MS, Windows)
        
CE
        Connection Endpoint (UNI)
        
CEARCH
        Cisco Educational ARCHive (Cisco, WWW)
        
CEBIT
        welt CEntrum Buero Information Telekommunikation (fair), "CeBIT"
        
CECI
        CICS Enhanced Command Interpreter (IBM, CICS)
        
CEDA
        ??? (CICS, IBM)
        
CEDR
        [Microsoft Windows] Compact Edition Driver Repository (MS, Windows, CE)
        
CEECEB
        Central and Eastern European Countries EDIFACT Board (org., EDIFACT), "CEEC/EB"
        
CEG
        Continuous Edge Graphics (Grafik, IC)
        
CEI
        Connection Endpoint Identifier (UNI)
        
CELP
        Card Edge Low Profile [socket]
        
CELP
        Code Excited Linear Prediction
        
CEM
        Contract Equipment Manufacturer
        
CEMT
        ??? (CICS, IBM)
        
CEN
        Comite Europeen de Normalisation (Europe, Brussels)
        
CENELEC
        Comite Europeen de Normalisation ELECtrotechnique (org., CEN, Europe)
        
CENTR
        Council of European National Top level DOMAIN Registries
        
CEPAC
        CMOS-Ein-Platinen-Allzweck-Computer (IC, CMOS, C'T)
        
CEPIS
        Council of European Professional Informatics Societies (org., Europe)
        
CEPT
        Conference of European Postal and Telecommunications administrations (org., CCITT, conference, Europe)
        
CER
        Cell Error Ratio (ATM)
        
CERFNET
        California Educational and Research Federation NETwork (network), "CERFNet"
        
CERN
        Conseil Europeenne pour la Recherche Nucleaire (org., Europe, Geneva)
        
CERT
        Computer Emergency Response Team (DARPA, CMU, Internet)
        
CES
        C-bit Errored Seconds (DS3/E3)
        
CES
        Character Encoding Scheme (CSS, Unicode)
        
CES
        Circuit Emulation Service
        
CES
        Consumer Electronics Show (fair, USA)
        
CESAR
        Central Employment Search And Retrieval (WWW)
        
CET
        Central European Time [+0100] (TZ, MET)
        
CET
        Centro de Estudes de Telecomunicoes (org., Portugal)
        
CF
        Carry Flag (assembler)
        
CF
        Compact Flash [card]
        
CFA
        Center for Architecture (org., JIEO, DISA)
        
CFA
        Code Fiels Address (Forth)
        
CFB
        Cipher FeedBack [mode] (cryptography, DES)
        
CFD
        Call For Discussion (Internet)
        
CFD
        Computational Fluid Dynamics [applications]
        
CFE
        Center for Engineering (org., JIEO, DISA)
        
CFF
        Compact Font Format (Adobe)
        
CFI
        CAD Framework Initiative (org., CAD)
        
CFM
        ConFiguration Management (FDDI, SMT)
        
CFMC
        Committee to Fight Microsoft Corporation (org., MS)
        
CFML
        Cold Fusion Markup Language
        
CFP
        Call For Papers
        
CFS
        Center for Standards (org., JIEO, DISA)
        
CFS
        Cryptographic FileSystem (Linux, cryptography)
        
CFV
        Call For Vote (Internet, Usenet), "CfV"
        
CGA
        Colour Graphics Adapter
        
CGA
        Graphics Communications Association (org.)
        
CGARI
        Graphics Communications Association Research Institute (org., CGA)
        
CGDC
        Computer (???) Game Developers' Conference
        
CGI
        Common Gateway Interface (WWW)
        
CGI
        Computer Generated Imagery
        
CGI
        Computer Graphics Interface
        
CGI
        Computer Graphics International (conference)
        
CGM
        Computer Graphics Metafile (ISO 8632)
        
CGMS
        Copy Generation Management System (CD)
        
CGRM
        Computer Graphics Reference Model (ISO, IEC, ISO/IEC 11072)
        
CGVDI
        Computer Graphic Virtual Device Interface, "CG-VDI"
        
CHAID
        CHisquard Automatic Interaction Detector / Detection (SPSS)
        
CHAP
        [PPP] Challenge Handshake Authentication Protocol (PPP, RFC 1334/1994)
        
CHCP
        CHange Code Page (DOS)
        
CHDL
        Computer Hardware Description Language (HDL)
        
CHEST
        Computers in Higher Education Software Team (org., UK)
        
CHILL
        CCITT HIgh Level programming Language (CCITT)
        
CHRP
        Common Hardware Reference Platform (AIM)
        
CHS
        Cylinder Head Sectors
        
CHSM
        C Hardware Specific Module (NEST, MLID, Novell)
        
CHV
        Card Holder Value [aka PIN] (ICC, PIN)
        
CI
        Check In (RCS)
        
CI
        Coded Information
        
CI
        Component Interface (DMI)
        
CI
        Configuration Item (CM)
        
CI
        Congestion Indicator
        
CIAC
        Computer Incident Advisory Capability (org., LLNL, Internet)
        
CIB
        Computer Integrated Business
        
CIC
        Carrier Identification Code
        
CIC
        Coordination and Information Center (CSNET)
        
CICA
        Center of Innovative Computer Applications (org.)
        
CICS
        Customer Information Control System (IBM, CICS)
        
CICSESA
        Customer Information Control System/Enterprise Systems Architecture (IBM, CICS), "CICS/ESA"
        
CICSTS
        Customer Information Control System / Transaction Server (IBM, VSE/ESA), "CICS/TS"
        
CICSVS
        Customer Information Control System / Virtual Storage (IBM, CICS), "CICS/VS"
        
CID
        Configuration - Installation - Distribution (IBM)
        
CIDF
        Common Intrusion Detection Framework (CIDF, IDS)
        
CIDR
        Classless Internet DOMAIN Routing [protocol] (RFC 1519)
        
CIE
        Commission Internationale de l'Eclairage (org.)
        
CIFS
        Common Internet File System (TCP/IP)
        
CIL
        Computer Integration Laboratories (org., Apple, IBM, Novell, Sun, ...)
        
CILABS
        Component Integration LABoratorieS (org.,, OpenDoc, Apple, IBM, Adobe, ...), CILabs
        
CIM
        Cisco Interactive Mentor (Cisco)
        
CIM
        Common Information Model (DMTF, XML, DMI)
        
CIM
        Computer Integrated Manufacturing
        
CIMOM
        CIM Object Model (CIM)
        
CIMOS
        CIncinnati Milacron Operating System (OS), "CiMOS"
        
CIO
        Cisco Information Online (Cisco, WWW)
        
CIP
        Carrier Identification Parameter
        
CIP
        Classical IP over ATM (IP, ATM, IETF)
        
CIP
        Computer Integrated Processing
        
CIP
        Computer-Investitions-Programm
        
CIPA
        Children's Internet Protection Act (Internet, USA, COPA)
        
CIR
        Committed Information Rate (ATM)
        
CIRC
        Cross Interleaved Reed-solomon Code (CD)
        
CIRCIT
        Centre for International Research on Communication and Information Technology (org., Australia)
        
CIS
        Card Information Structure / Space (PCMCIA)
        
CIS
        Command Information System (mil., USA)
        
CIS
        Compuserve Information Systems (network)
        
CIS
        Contact Image Sensor
        
CISC
        Complex Instruction Set Computer (CPU)
        
CISE
        Computer and Information Science Directorate (org., NSF)
        
CISKA
        [3D] Campus-InformationsSystem KArlsruhe (Uni Karlsruhe, Germany, VRML)
        
CISPR
        Comite International Special des Perturbations Radioelectriques (org.)
        
CISS
        Center for Information Systems Security (org., JIEO, DISA, mil., USA)
        
CIT
        Computer Integrated Telephony
        
CIT
        Computer Intergrated Tooling
        
CITED
        Copyright In Transmitted Electronic Documents (ESPRIT)
        
CIU
        ??? [switch] (IBM)
        
CIVIC
        Cyclone Integrated Video Interfaces Controller (Apple)
        
CIX
        Commercial Internet eXchange (ISP)
        
CL
        Column Address Strobe Latency (CAS)
        
CL
        ConnectionLess (CO)
        
CL
        Control Language (IBM, OS/400)
        
CLASS
        Centralized Local Area Selective Signaling
        
CLASS
        Custom Local Area Signaling Service
        
CLDC
        Connected Limited Device Configuration (KVM, CDC)
        
CLE
        Certified Lotus Engineer (Lotus)
        
CLEC
        Competitive Local Exchange Carrier
        
CLI
        Call Level Interface (SAQ, X/Open, Informix, ...)
        
CLI
        CLear Interrupt (assembler)
        
CLI
        Command Line Interpreter / Interface (OS)
        
CLI
        Common Language Infrastructure (MS)
        
CLIC
        Chemnitzer LInux Cluster (Linux, Chemnitz), "CLiC"
        
CLIC
        Computer Liability Insurance Coverage
        
CLID
        Calling Line IDentification
        
CLIM
        Common LISP Interface Manager (CLOS, LISP)
        
CLIW
        Configurable Long Instruction Word (IC, CPU)
        
CLL
        ConnectionLess Layer (UNI, NNI, ATM)
        
CLNAP
        Connectionless Network Access Protocol (UNI, NNI, ATM)
        
CLNP
        ConnectionLess Network Protocol (OSI, ISO 8473)
        
CLNS
        ConnectionLess Network Service
        
CLOS
        Common LISP Object System (LISP)
        
CLP
        Cell Loss Priority (UNI, ATM, CLR)
        
CLR
        Cell Loss Ratio (UNI, ATM, QOS)
        
CLS
        Card Loading Signal
        
CLSF
        ConnectionLess Service Function
        
CLSID
        CLasS IDentifier (COM)
        
CLTP
        ConnectionLess Transport Protocol (OSI)
        
CLUG
        Chemnitzer Linux User Group (Chemnitz, user group, Linux)
        
CLUT
        Color LookUp Table (VGA)
        
CLV
        Constant Linear Velocity (CD, MOD)
        
CLX
        Class Library for cross platform (Delphi, Windows, Linux)
        
CM
        Compatibility Mode (PARISC, NM)
        
CM
        Configuration Management
        
CM
        Configuration Manager (BIOS, PNP)
        
CM
        Connection Management (RR, MM, GSM, mobile-systems)
        
CM2
        Communication Manager /2 (IBM), "CM/2"
        
CM5
        Connection Machine 5 (TMC)
        
CMAS
        Cambridge Multiple Access System (OS)
        
CMC
        Common Messaging Calls [interface] (XAPIA)
        
CMC
        Complement Carry Flag (assembler)
        
CMC
        Computer Mediated Communications [studies centre] (org., USA)
        
CMDS
        Cambridge Model Distributed System (OS)
        
CME
        Component Management Entity
        
CMGA
        Community of Massive Gaming Agents Internet, Germany, Telekom
        
CMGS
        Cyan Magenta Gelb Schwarz (color system, DTP)
        
CMI
        Coded Mark Inversion
        
CMI
        Connection Manager Interface (IBM, SNA)
        
CMIA
        China Medical Informatics Association (org., China)
        
CMIP
        Common Management Information Protocol (OSI, ISO, DP 9506, X.700)
        
CMIS
        Common Management Information Service (OSI)
        
CMISE
        Common Management Information Service Element (CMIS)
        
CMM
        Color Management Method (DTP, ICM)
        
CMMU
        Cache/Memory Management Unit
        
CMO
        Chi Mei Optoelectronic (manufacturer)
        
CMOL
        CMIP Over LLC (OSI, LLC)
        
CMOS
        Complementary-symmetry Metal-Oxide Semiconductor (IC)
        
CMOT
        CMIP Over TCP (OSI, RFC 1189, CMIP, TCP)
        
CMP
        Cooperative Marketing Partner (DEC)
        
CMR
        Cell Misinsertion Rate (ATM)
        
CMS
        [Cambridge] / Conversational Monitor System (IBM, OS, VM, VME, VM/ESA, Z/VM)
        
CMS
        Chip Multiprocessor System
        
CMS
        Code Management System (DEC, CM)
        
CMS
        Color Management System
        
CMS
        Content Management Software / System
        
CMS
        Cryptographic Message Syntax (cryptography, RFC 2630)
        
CMT
        Connection ManagemenT (FDDI)
        
CMU
        Carnegie-Mellon-University (org.)
        
CMY
        Cyan Magenta Yellow (color system, DTP)
        
CMYK
        Cyan Magenta Yellow blacK (color system, DTP)
        
CN
        Communications Network
        
CN
        Connection Management (mobile-systems)
        
CN
        Coordination Message (ISO 9646-3, TTCN)
        
CN
        Copy Network
        
CN
        Corporate Network
        
CNA
        Certified Novell Administrator (Novell, Netware)
        
CNA
        Communication Network Architecture (SEL)
        
CNA
        Communications Network Application
        
CNBC
        Center for Neural Basis of Cognition (org., CMU, AI)
        
CNC
        Communications Network Control
        
CNC
        Computerized Numerical Control
        
CND
        Caldera Network Desktop (Linux)
        
CND
        Caller Number Delivery (MODEM)
        
CNE
        Certified Netware Engineer (Novell, Netware)
        
CNEPA
        Certified Netware Engineers Professional Association (org., Netware)
        
CNET
        Centre Nationale d'Etudes des Telecommunications (org., France)
        
CNI
        Certified Netware Instructor (Novell, Netware)
        
CNI
        Common Network Interface
        
CNIDIR
        Coalition for Networked Information DIRectories (Internet)
        
CNM
        Communications Network Management
        
CNM
        Customer Network Management
        
CNMA
        Communications Network for Manufacturing Applications
        
CNMS
        Cylink Network Management System
        
CNNIC
        China interNet Network Information Center (org., Internet, China)
        
CNP
        Corporate Network Products (TPS)
        
CNR
        Communications and Network Riser
        
CNRCVUUCP
        Compressed News ReCeive Via UUCP
        
CNS
        Certified Novell Salesperson (Novell, Netware)
        
CNS
        Complimentary Network Service
        
CNS
        Compuserve Network Services (CIS)
        
CO
        Check Out (RCS)
        
CO
        Connection Oriented (CL)
        
COAS
        Caldera Open Administration System (Linux)
        
COAST
        Cache On A STick (Intel)
        
COAST
        Computer Operations, Audit and Security Technology (org.)
        
COBOL
        COmmon Business Orientated Language
        
COBRA
        ??? (org., Netherlands)
        
COBRA
        COmmunication technology: Basic Research and Applications
        
COBWEB
        COntent-Based image retrieval on the WEB (WWW, ESPRIT)
        
COCA
        Cost Of Cracking Adjustment (cryptography)
        
COCOT
        Customer Owned Coin Operated Telephone
        
COD
        Connection Oriented Data
        
CODASYSL
        Conference On DAta Systems Languages (conference)
        
CODCF
        Central Office Data Connecting Facility
        
CODE
        Client/server Open Development Environment (Powersoft)
        
CODE
        COlor Depth Enhancement (ATI)
        
CODEC
        COder - DECoder
        
COE
        Central Office Equipment
        
COEES
        COE Engineering System (COE)
        
COFDM
        ??? (Digital audio)
        
COFF
        Common Object File Format (Unix)
        
COIPX
        Connection Orientated Internet Packet eXchange (Novell, Netware, IPX), "CO-IPX"
        
COL
        Caldera Open Linux (Caldera, Linux)
        
COLD
        Computer Output on LaserDisk
        
COLIBRI
        COprozessor fuer LISP auf der Basis von RISC (RISC)
        
COM
        Component Object Model (OLE, OLE2, OCX, ActiveX, MS)
        
COM
        Computer Output on Microfilm
        
COM
        Continuation of Message
        
COMA
        Cache Only Memory Architecture (SMP)
        
COMAL
        COMmon Algorithmic Language
        
COMDEX
        COMputer Dealer's EXposition (fair)
        
COMPARTS
        COMputergestuetztes PARtner-TeilebestandsSystem (MBAG)
        
COMTECH
        COMputer TECHnologies (fair)
        
CONCERT
        Communications for North Carolina Education, Research and Technology (network)
        
CONCISE
        COSINE Network's Central Information Service for Europe (COSINE, network)
        
CONLAN
        ??? [hardware description language] (HDL)
        
CONS
        Connection Oriented Networking Service
        
CONTAC
        Central Office NeTwork ACcess
        
COOL
        COBOL Object Orientated Language (OOP, COBOL)
        
COOP
        Concurrent Object Orientated Programming (OOP)
        
COP
        Character-Oriented Protocol
        
COPA
        Child Online Protection Act (Internet, USA, CIPA)
        
CORAN
        Communication ORiented Application aNalysis
        
CORBA
        Common Object Request Broker Architecture (OMG)
        
CORDIS
        COmmunity Research and Development Information Service (Europe)
        
COS
        Card Operating System (OS, ICC)
        
COS
        Cassette Operating System (OS)
        
COS
        Class of Service
        
COS
        Clip On Socket (CPU)
        
COS
        Commercial Operating System (OS, DEC, PDP 11)
        
COS
        Concurrent Operating System (OS, UNIVAC 9200, UNIVAC 9300)
        
COS
        Corporation for Open Systems (org., OSI, user group)
        
COS
        Cray Operating System (OS, Cray)
        
COSA
        COmputerunterstuetzte SAchbearbeitung
        
COSA
        COmputing in der Sozialen Arbeit (Org, Koeln, Germany)
        
COSE
        Common Open Software Environment (HP, Sun, IBM, SCO, USL, Univel)
        
COSINE
        Cooperation for OSI Networking in Europe (org.)
        
COSMOS
        COmputer System for Mainframe OperationS
        
COSS
        Common Object Services Specification
        
COST
        COpenhagen SGML Tool (SGML), "CoST"
        
COT
        Central Office Terminal
        
COTP
        Connection-Oriented Transport Protocol (OSI, ISO 8073)
        
COTS
        Connection-Oriented Transport [layer] Service
        
COW
        Character Orientated Windows (MS, SAA, UI)
        
CP
        Connection Processor
        
CP
        Control Point (IBM, SNA)
        
CP
        Control Program (IBM, OS, VM/ESA, VM)
        
CP
        Coordination Point (ISO 9646-3, TTCN)
        
CPAN
        Comprehensive PERL Archive Network (PERL)
        
CPC
        Cost Per Copy
        
CPCS
        Common Part Convergence Sublayer (ATM)
        
CPDP
        Cellular Digital Packet Data
        
CPE
        Customer Premises Equipment
        
CPF
        Control Program Facility (OS, IBM, S/38)
        
CPGA
        Ceramic Pin Grid Array (CPU)
        
CPH
        Cost Per Hour
        
CPI
        Characters Per Inch
        
CPI
        Common Part Indicator (ATM)
        
CPI
        Common Programming Interface (IBM, SAA)
        
CPI
        Computer Private branch exchange Interface
        
CPIC
        Common Programming Interface for Communications (IBM, SAA, API), "CPI/C"
        
CPIO
        CoPy In/Out (Unix)
        
CPIRR
        Common Programming Interface Resource Recovery (IBM, SAA)
        
CPL
        Combined Programming Language (DEC, PL/1)
        
CPL
        Conversational Programming Language (DEC)
        
CPLD
        Complex Programmable Logic Device (PLD, IC, RL)
        
CPM
        Control Program for Microcomputers (OS, DR), "CP/M"
        
CPM
        Cost Per Minute
        
CPM
        Critical Path Method
        
CPMS
        Central Point Management Services (Central Point)
        
CPN
        Calling Party Number
        
CPN
        Compuserve Packet Network (network)
        
CPN
        Customer Premises Network
        
CPNET
        Control Program / NETwork (CP/M, OS), "CP/NET"
        
CPNOS
        Control Program / ??? (CP/NET, CP/M, OS), "CP/NOS"
        
CPODA
        Contention Priority Orientated Demand Assignment (MAC, PODA)
        
CPPS
        Card / Paper tape Programming System (OS, IBM)
        
CPS
        Central Processing System
        
CPS
        Characters Per Second
        
CPSI
        Configurable PostScript Interpreter
        
CPSR
        Computer Professionals for Social Responsibility (org., USA)
        
CPU
        Central Processing Unit
        
CPUID
        Central Processing Unit IDentifier (CPU)
        
CR
        Carriage Return (ASCII)
        
CRAFT
        Cray Research Adaptive FORTRAN (Cray, MPP, FORTRAN)
        
CRAM
        Cache RAM (RAM)
        
CRAM
        Card Random Access Memory (RAM, IC)
        
CRAS
        Cable Repair Administrative System
        
CRC
        Cyclic Redundancy Check[sum]
        
CRCG
        [fraunhofer] Center for Research in Computer Graphics (org., USA)
        
CRCG
        Common Routing Connection Group
        
CRD
        Color Rendering Dictionary (PS)
        
CREN
        Corporation for Research and Educational Networking (network)
        
CRET
        Color - Resolution Enhancement Technology (HP), "C-REt"
        
CRFVC
        Connection Related Function Virtual Channel (UPC, UNI), "CRF(VC)"
        
CRFVP
        Connection Related Function Virtual Path (UPC, UNI), "CRF(VP)"
        
CRI
        Cray Research, Inc. (manufacturer)
        
CRIMM
        Continuity Rambus Inline Memory Module (RIMM, IC, Rambus)
        
CRIN
        Centre de Recherche en Informatique de Nancy (org., France)
        
CRISC
        Complex-Reduced Instruction Set Computer
        
CRISP
        Complex-Reduced Instruction Set Processor
        
CRJE
        Conversational Remote Job Entry (RJE)
        
CRL
        Certificate Revocation List
        
CRL
        Compile-time Reconfigurable Logic (RL)
        
CRLF
        Carriage Return - Line Feed (ASCII, DOS)
        
CRM
        Customer Relationship Management
        
CRP
        Candidate Rendezvous Point (PIM, RP, Multicast), "C-RP"
        
CRP
        Common Reference Platform (PowerPC)
        
CRPC
        Center for Research on Parallel Computation (STC)
        
CRS
        Cell Relay Service (UNI, ATM)
        
CRT
        Cathode Ray Tube
        
CRT
        Computer Technology Research [corporation] (provider)
        
CRTC
        Cathode Ray Tube Controller (EGA, VGA, MCGA)
        
CS
        Carrier Selection
        
CS
        Chip Select (IC)
        
CS
        Client/Server, "C/S" 
        
CS
        Code Segment [register] (CPU, Intel, assembler)
        
CS
        Coding Scheme (GPRS, mobile-systems)
        
CS
        Computer Science
        
CS
        Controlled Slip [error event] (DS1/E1)
        
CS
        Convergence Sublayer (ATM)
        
CS1
        Capability Set 1 (IN), "CS-1"
        
CS2
        Capability Set 2 (IN)
        
CSA
        Callpath Service Architecture (IBM, CTI)
        
CSA
        Client Service Agent
        
CSA
        Configuration Status Accounting
        
CSAPI
        Common Speller Application Program Interface (API)
        
CSC
        Computer Sciences Corporation (provider)
        
CSCC
        Concurrent SuperComputing Consortium (org.)
        
CSCD
        Caldera Systems Curriculum Developers (Caldera)
        
CSCSI
        Canadian Society for the Computational Studies of Intelligence (org., Canada, AI)
        
CSCW
        Computer Supported Cooperative Work
        
CSD
        Control flow Specification Diagram (CASE)
        
CSD
        Corrective Service Diskettes (IBM)
        
CSD
        Customer Specific Dictionaries
        
CSDC
        Circuit Switched Digital Capability
        
CSDC
        Code Segment Descriptor Cache [register] (CS, Intel, CPU)
        
CSE
        Client-Server Environment
        
CSEIA
        [conference on] Computer Support for Environmental Impact Assessment (IFIP, conference)
        
CSEL
        Cable SELect (EIDE, HD)
        
CSELT
        Centro Studi E Laboratori Telecomunicazioni [s.p.a.] (org., Italy)
        
CSEM
        Centre Suisse d'Electronique et de Microtecnique (org., Switzerland)
        
CSES
        C-bit Severely Errored Seconds (DS3/E3)
        
CSG
        Constructive Solid Geometry (CAD, CAM)
        
CSH
        C SHell (Unix, BSD, Shell)
        
CSH
        Complementary Software House (DEC)
        
CSI
        CompuServe Incorporated (ISP)
        
CSI
        Convergence Sublayer Indication (ATM)
        
CSIC
        Customer Specific Integrated Circuit (IC, RL)
        
CSID
        Caller Station IDentification (Fax)
        
CSIDS
        Central command/Southern command Integrated Data System (mil., USA)
        
CSII
        Center for Systems Interoperability and Integration (org., ???)
        
CSIRO
        Commonwealth Scientific and Industrial Research Organization (org., UK)
        
CSIS
        Central Schengen Information Systen (SIS, Europe, Strasbourg)
        
CSKI
        Ceska Spolecnost pro Kybernetiku a Informatiku (org., Tschechien)
        
CSL
        Callable Services Library (IBM, VM/ESA, CMS)
        
CSL
        Computer SoLutions [software gmbh] (Haendler)
        
CSLIP
        Compressed [headers] Serial Line Internet Protocol (SLIP, IP)
        
CSMA
        Carrier Sense Multiple Access
        
CSMACA
        Carrier Sense Multiple Access with Collision Avoidance, "CSMA/CA" 
        
CSMACD
        Carrier Sense Multiple Access with Collision Detection (IEEE 802.3, ethernet, CSMA/CD), "CSMA/CD"
        
CSMS
        C Specific Media Support (NEST, MLID, Novell)
        
CSMUX
        Circuit Switching MUltipleXer (FDDI), "CS-MUX"
        
CSN
        Card Select Number (PNP)
        
CSNET
        Computer + Science NETwork (USA, network, BITNET)
        
CSP
        Centro Supercacolo Piemonte (org., Italy, HPC)
        
CSP
        Chip Scale Package (IC)
        
CSP
        Communicating Sequential Processes
        
CSP
        Cross System Product (IBM)
        
CSPDN
        Circuit Switched Public Data Network (IN)
        
CSPDU
        Convergence Sublayer Protocol Data Unit (ATM, PDU), "CS PDU"
        
CSPP
        Computer Systems Policy Project [group] (org., USA. manufacturer)
        
CSR
        Cell misSequenced Ratio (ATM)
        
CSR
        Cell Switch Router (Toshiba)
        
CSRAM
        Clock Synchronous Random Access Memory (RAM, IC)
        
CSS
        Cascading Style Sheets (HTML, WWW,  JavaScript)
        
CSS
        Computer Sub System
        
CSS
        Content Scrambling System (DVD, Matsushita, IBM)
        
CSS
        Controlled Slip Seconds (DS1/E1)
        
CSS
        Customer Switching System
        
CST
        Central Standard Time [-0600] (TZ, CDT, USA)
        
CSTA
        Computer Supported Telecommunications Applications (ECMA, CTI)
        
CSTB
        Computer Science and Technology Board (org., NRC)
        
CSTC
        Computer Security Technology Center (org., CIAC)
        
CSTO
        Computing Systems Technology Office (org., ARPA)
        
CSTR
        Centre for Speech Technology Research
        
CSTS
        Computer Supported Telecommunications Standard
        
CSU
        Channel Service Unit (ATM)
        
CSUNET
        California State University NETwork (network, USA)
        
CSV
        Comma Separated Values
        
CT
        [magazin fuer] Computer Technik, "c't" 
        
CT
        Chipcard Terminal (ICC, CT)
        
CT
        Chips & Technologies (manufacturer), "C&T"
        
CTAN
        Comprehensive Tex Archive Network (TeX, FTP)
        
CTAPI
        Chipcard Terminal Application Program Interface (ICC, CT, API), "CT-API"
        
CTB
        Communication ToolBox (Apple)
        
CTCA
        Channel To Channel Adapter (IBM, System/370)
        
CTCP
        Client To Client Protocol (IRC)
        
CTCPEC
        Canadian Trusted Computer Product Evaluation Criteria (Canada)
        
CTD
        Cell Transfer Delay (UNI, ATM, QOS)
        
CTE
        Compliance Test and Evaluation, "CT & E"
        
CTERM
        Command TERMinal (DEC)
        
CTI
        Computer Telephony Integration
        
CTM
        Communication Trunk of Medium range Mil., Germany
        
CTOS
        Cassette Tape Operating System (OS, Datapoint)
        
CTR
        [columbia university] Center for Telecommunications Research (org., USA)
        
CTR
        Common Technical Regulations (Europe)
        
CTRON
        Central TRON (TRON)
        
CTS
        Cipher Text Stealing [mode] (cryptography)
        
CTS
        Clear To Send (MODEM, RS-232)
        
CTS
        Conformance Testing Service (OSTC)
        
CTSM
        C Topology Specific Module (NEST, MLID, Novell)
        
CTSS
        Compatible Time Sharing System (Unix, predecessor, OS, MIT)
        
CTSS
        Cray TimeSharing System (OS, Cray, LLNL)
        
CTT
        Cartridge Tape Transport
        
CTT
        Character Translation Table
        
CTTC
        Cartridge Tape Transport Controller
        
CTV
        Cell Tolerance Variation (ATM)
        
CTY
        Console teleTYpe
        
CU
        Call Up (Unix)
        
CU
        [L]       [see you [Later]] (slang, Usenet, IRC)
        
CUA
        Common User Application
        
CUCUG
        Champaign-Urbana Computer Users Group (org., user group)
        
CUI
        Character User Interface (UI)
        
CUI
        Common User Interface (AMS, UI)
        
CUSI
        Configurable Unified Search Interface (WWW)
        
CUSP
        Commonly Used System Program (DEC)
        
CUT
        Control Unit Terminal
        
CUU
        ComputerUnterstuetzte Unterweisung
        
CVF
        Compressed Volume File (DOS)
        
CVIA
        Computer Virus Industry Association (org., USA)
        
CVS
        Computer Vision Syndrome
        
CVS
        Concurrent Versions System (Unix)
        
CVSD
        Continuous Variable Delta Modulation (DFUe)
        
CVSELP
        Codex Vector Sum Excited Linear Prediction [algorithm] (Motorola, VOFR)
        
CWI
        Centrum voor Wiskunde en Informatica (org., Netherlands)
        
CWIS
        Campus Wide Information System
        
CWMI
        Common Warehousing Metadata Interchange (DB, DWH)
        
CWP
        Current Workspace Pointer (SPARC, CPU)
        
CWT
        Character Width Table
        
CXI
        Common X-windows Interface (Unix)
        
CYMK
        Cyan, Yellow, Magenta, blacK (color system)
        

        
        









        

D2B
        Domestic Digital Bus
        
D3D
        Direct3D (DirectX, MS)
        
D3DRM
        Direct3D Retained Mode (DirectX, MS)
        
DA
        Destination [MAC] Address (SNA, Token Ring, ATM, FDDI, ...)
        
DA
        Digital-to-Analog (D/A), "D/A"
        
DA11
        DatenAustauschphase 11  [allgemeine bauabrechnung] (GAEB)
        
DA81
        DatenAustauschphase 81 [leistungsverzeichnis] (GAEB)
        
DA82
        DatenAustauschphase 82 [kostenanschlag] (GAEB)
        
DA83
        DatenAustauschphase 83 [angebotsanforderung] (GAEB)
        
DA84
        DatenAustauschphase 84 [angebotsabgabe] (GAEB)
        
DA85
        DatenAustauschphase 85 [nebenangebot] (GAEB)
        
DA86
        DatenAustauschphase 86 [zuschlag/auftragserteilung] (GAEB)
        
DAA
        Device Access Architecture (Vireo)
        
DAA
        Digest Access Authentication (HTTP)
        
DAB
        Digital Audio Broadcasting
        
DAC
        Digital to Analog Converter
        
DAC
        Discretionary Access Control
        
DAC
        Dual Address Cycle (PCI)
        
DAC
        Dual Attached Concentrator (FDDI)
        
DACAPO
        ??? [hardware description language] (HDL)
        
DACNOS
        Distributed Academic Computing Network Operating System (OS, HECTOR)
        
DACS
        Digital Access Control System (ISDN, DES, cryptography)
        
DACT
        DAta Compression Technology
        
DAD
        Desktop Application Director (WordPerfect)
        
DAE
        Digital Audio Extraction (CD, audio)
        
DAEMON
        Disk And Execution MONitor (Unix)
        
DAF
        Distributed Application Framework (CCITT)
        
DAG
        DatenAnschaltGeraet
        
DAI
        ??? (Sun)
        
DAI
        Device Application Interface (Novell, Netware, SMS)
        
DAI
        Distributed Artificial Intelligence (AI)
        
DAINET
        Deutsches AgrarInformationsNETz (WWW, org.)
        
DAIS
        Distributed Application Integration System (ORB)
        
DAL
        Data Access Language (Apple)
        
DALI
        Distributed Artificial LIfe (AI), "DALi"
        
DAM
        Direct Access Method / Mode (DAM, SAM)
        
DAM
        Distributed Abstract Machine
        
DAM
        Draft AMendment (ISO)
        
DAMQAM
        Dynamically Adaptive Multicarrier Quadrature Amplitude Modulation
        
DANA
        De.Admin.News.Announce (Usenet), "D.A.N.A."
        
DANTE
        Delivery of Advanced Network Technology to Europe (org., Europe)
        
DANTE
        Deutschsprachige ANwendervereinigung TEx [e.v.] (TeX, user group)
        
DAO
        Data Access Objects (DB)
        
DAO
        Destination Address Omitted [flag] (CATNIP)
        
DAO
        Disk At Once (CD-R)
        
DAP
        Data Access Protocol (DEC, DNA)
        
DAP
        Developers Assistance Program (IBM)
        
DAP
        Directory Access Protocol (X.500, DS)
        
DAP
        Directory Application Protocol (IN)
        
DAP
        Document Application Profile (JTC1, ODIF, ODA)
        
DAPE
        Distributed Application Programming Environment (ORB)
        
DAPHNE
        Document Application Processing in a Heterogeneous Network Environment
        
DAPIE
        Developer API Extensions (IBM, OS/2, API)
        
DARI
        Database Application Remote Interface (IBM, DB)
        
DARMP
        Defense Automation Resources Management Program (mil., USA)
        
DARPA
        Defense Advanced Research Projects Agency (org., USA)
        
DART
        Dynamic Advertising Reporting & Targeting [technology] (WWW, Doubleclick)
        
DAS
        Directory Assistance Service [protocol] (RFC 1202)
        
DAS
        Disk Array Subsystem (Unix, HP-UX)
        
DAS
        Dual Attached Station (FDDI)
        
DAS
        Dual Attachment Station (FDDI, Schneider & Koch)
        
DAS
        Dynamic Allocation Scheme [protocol]
        
DASD
        Direct Access Storage Device
        
DASI
        Dial Access Signaling Interface
        
DASP
        Drive Active, Slave Present (IDE)
        
DASS
        Distributed Authentication Security Service (RFC 1507)
        
DAT
        Digital Audio Tape (Digital audio)
        
DATEV
        DATEnVerarbeitungszentrale der steuerberatenden Berufe (org., Nuernberg, Germany)
        
DATEX
        DATa EXchange
        
DATEXJ
        DATa EXchange - Jedermann ??? (Telekom), "DATEX-J"
        
DATEXL
        DATa EXchange - Leitungsvermittlung
        
DATEXM
        DATa EXchange - Multimegabit (Telekom, SMDS), "DATEX-M"
        
DATEXP
        DATa EXchange - Packetized / Packetvermittlung (Telekom, X.25), "DATEX-P"
        
DAU
        Duemmster Anzunehmender User (slang, Usenet, IRC)
        
DAV
        [WWW] Distributed Authoring diVersioning (WWW)
        
DAV
        Digital Audio Video (Apple, Digital audio)
        
DAVIC
        Digital Audio Visual Interoperatibility Council (org., Digital audio)
        
DAVID
        Digital Audio Video Interactive Decoder (Digital audio)
        
DAVIS
        DAimler-Benz Vertragspartner-InformationsSystem (MBAG)
        
DAWN
        Defense Attache Worldwide Network (network, mil.)
        
DAX
        Developer API eXtension (OS/2, IBM, API)
        
DB
        DataBase
        
DB2
        DataBase 2 (IBM, DB)
        
DB2CS
        DataBase 2 Client/Server (IBM, DB2, DB), "DB2 C/S"
        
DB2SDK
        DataBase 2 Software Development Toolkit (DB2, IBM, DB), "DB2 SDK"
        
DBA
        DataBase Administrator (DB)
        
DBA
        Drei Buchstaben Akronym
        
DBAC
        DataBase Administration Center (DB)
        
DBAS
        DataBase Administration System (DB)
        
DBC
        Device Bay Controller
        
DBCS
        Double-Byte Character Set
        
DBD
        DataBase Description (IBM, DB)
        
DBDMA
        ??? Direct Memory Access (Apple)
        
DBEF
        Dual Brightness Enhancement Foile (LCD)
        
DBI
        DataBase Interface (DB)
        
DBL
        DataBase Language (DB)
        
DBLO
        Dual Beam Landing Optimizer
        
DBLT
        Dynamic Back Link Technology (WWW)
        
DBM
        DataBase Manager (DB)
        
DBME
        DataBase Management Environment (DB)
        
DBMS
        DataBase Management System (DB)
        
DBOS
        Disk/Drum Based Operating System (OS)
        
DBP
        DataBase Publishing (DB)
        
DBP
        Delay Bandwidth Product
        
DBRAD
        Data Base Relational Application Directory (DB)
        
DBRM
        Data Base Request Module (DB)
        
DBS
        Deutscher Bildungs-Server (DFN, WWW)
        
DBS
        Duplex Bus Selector
        
DBSC
        Dynamic Beam Spot Control (Eizo)
        
DBTG
        Data Base Task Group (CODASYL, DB)
        
DBVS
        DatenBankVerwaltungsSystem (DB)
        
DC
        Data Cartridge
        
DC
        Device Context
        
DC
        Dublin Core [meta data]
        
DCA
        Data Center Automation
        
DCA
        Defense Communications Agency (org., USA, mil., predecessor, DISA)
        
DCA
        Digital Communication Associates
        
DCA
        Digital Controlled Amplifier (VCA)
        
DCA
        Distributed Communication Architecture (Sperry Univac)
        
DCA
        Document Center Architecture
        
DCA
        Document Content Architecture (IBM, CCS)
        
DCA2
        Dynamic Cache Architecture [level] 2
        
DCAF
        Distributed Console Access Facility
        
DCAP
        Data link switching Client Access Protocol (DLSW, RFC 2114)
        
DCB
        Data Control Block
        
DCB
        Disk Coprocessor Board (Novell, SCSI, HBA)
        
DCC
        Data Communications Computer
        
DCC
        Data Country Code (ATM)
        
DCC
        Direct Client to Client (IRC)
        
DCC
        Display Combination Code
        
DCC
        DOS Command Center
        
DCCA
        Dependable Computing for Critical Applications (conference)
        
DCCA
        Distributed Component Computing Architecture (Star, C/S)
        
DCCH
        Dedicated Control CHannel (GSM, mobile-systems)
        
DCCS
        DisContiguous Shared Segments
        
DCD
        Data Carrier Detect (MODEM, RS-232)
        
DCDB
        DOMAIN Control DataBase (DOMAIN)
        
DCE
        Data Circuit terminating Equipment (X.25, CCITT, IBM, HP, DEC, Tandem, Sun)
        
DCE
        Data Communications Equipment
        
DCE
        Distributed Computing Environment (OSF)
        
DCERPC
        Distributed Computing Environment / Remote Procedure Call (DCE, RPC), "DCE/RPC" , "DCE RPC"
        
DCI
        Data Capture Interface (UMA)
        
DCI
        Device Control Interface
        
DCI
        Display Control Interface (MS, Windows, Intel)
        
DCL
        Data Control Language
        
DCL
        DEC Control Language (DEC)
        
DCL
        Digital Command [scripting] Language (DEC, VMS)
        
DCLU
        Digital Carrier Line Unit
        
DCLZ
        Data Compression Lempel-Ziv
        
DCM
        Digital Carrier Module
        
DCME
        Digital Circuit Multiplication Equipment
        
DCNA
        Data Communication Network Architecture
        
DCO
        Digital Controlled Oscillator
        
DCOM
        Distributed Component Object Model (COM, MS, OLE, ActiveX)
        
DCOP
        Desktop COmmunication Protocol (Linux, KDE)
        
DCP
        Data Compression Protocol (Motorola)
        
DCPS
        Data Communications Protocol Standards
        
DCR
        Design Change Request (AIX, IBM)
        
DCRC
        Digital Cellular Radio Conference (GSM, conference, mobile-systems)
        
DCS
        Data sharing Control System (NEC)
        
DCS
        Defense Communications System (mil., USA)
        
DCS
        Desktop Color Separation
        
DCS
        Digital Cellular System (mobile-systems)
        
DCS
        Digital Colour System (Adobe, Photoshop)
        
DCS
        Digital Control System (NEC)
        
DCS
        Digital Cross-connect System (DEC)
        
DCT
        ??? (CICS, IBM)
        
DCT
        Data Collection Terminator (BTX)
        
DCT
        Discrete Cosine Transformation (MPEG, JPEG)
        
DCTN
        Defense Commercial Telephone Network (mil., USA, network)
        
DCU
        Data Cache Unit (CPU, POWER)
        
DD
        Dansk Dataforening (org., Denmark)
        
DD
        Data Dictionary (SA, CASE, DB)
        
DD
        Depacketization Delay
        
DD
        Double Density [disks] (FDD)
        
DDA
        DOMAIN Defined Attribute (DOMAIN)
        
DDBAC
        Data-Design HBCI Banking Application Components (HBCI)
        
DDBMS
        Distributed DataBase Management System (DBMS, DB)
        
DDC
        Device Color Characterization (XCMS)
        
DDC
        Display Data Channel (VESA)
        
DDC2B
        Device Data Channel [standard], level 2B (DDC)
        
DDCD
        Double Density Compact Disk (CD, Sony)
        
DDCDR
        Double Density Compact Disk - Read (Sony, CD), "DDCD-R"
        
DDCDRW
        Double Density Compact Disk - Read Write (Sony, CD), "DDCD-RW"
        
DDCMP
        Digital Data Communication Message Protocol
        
DDCS2
        Distributed Database Connection Services /2 (IBM, DB, DRDA), "DDCS/2"
        
DDD
        Data Display Debugger (GNU)
        
DDE
        DatenenDEinrichtung
        
DDE
        Dynamic Data Exchange
        
DDES
        Digital Data Exchange System (ANSI)
        
DDF
        Data Decryption Field (cryptography)
        
DDI
        Device Dependent Interface
        
DDI
        Device Driver Interface
        
DDIMM
        Dual [RAS] Dual Inline Memory Module (DIMM, RAS), "D-DIMM"
        
DDK
        Device Development / Driver Kit (MS)
        
DDL
        Data Definition Language
        
DDL
        Document Description Language
        
DDM
        Distributed Data Management (IBM, CCS)
        
DDML
        Display Driver Management Layer
        
DDN
        Defense Data Network (USA, network, mil.)
        
DDNS
        Distributed DOMAIN Naming Service (TCP/IP)
        
DDNS
        Dynamic DOMAIN Name Service (OS/2, IBM)
        
DDO
        Dynamic Drive Overlay (HDD, Ontrack)
        
DDOS
        Distributed Denial Of Service [attack], "DDoS"
        
DDP
        Datagram Delivery Protocol (AppleTalk)
        
DDP
        Distributed Data Processing
        
DDR
        Double Data Rate (SDR)
        
DDR
        Dynamic Desktop Router (Cogent)
        
DDRS
        Defense Data Repository System (mil., USA)
        
DDRSDRAM
        Double Data Rate Synchronous Dynamic Random Access Memory (DRAM, RAM, IC), "DDR-SDRAM"
        
DDRSRAM
        Double Data Rate Static Random Access Memory (RAM, IC)
        
DDS
        Digital Data Service / System
        
DDS
        Digital Data Storage (Sony, HP, DAT, ISO, ANSI, ECMA, Streamer)
        
DDS
        Direct Digital Sampling (CD-RW, SCSI)
        
DDS
        Distributed Directory Service (DCE)
        
DDSA
        Digital Data Service Adapter
        
DDSDC
        Digital Data Storage - Data Compression (DDS, DCLZ), "DDS-DC"
        
DDSS
        Double Dynamic Suspension System (Asus, CD-ROM)
        
DDT
        Dynamic Debugging Tool (DEC)
        
DDU
        Dialog Data Unit (BTX)
        
DDV
        DatenDirektVerbindung (Telekom)
        
DDV
        DES-DES-Verfahren (cryptography, HBCI)
        
DDV
        Dialog Data Validation
        
DDVS
        Daimler-benz DatenVerbundSystem (MBAG)
        
DDVT
        Dynamic Dispatch Virtual Tables
        
DDWG
        Digital Display Working Group (org., LCD)
        
DDX
        Distributed Data eXchange
        
DE
        DatenElement (HBCI)
        
DEA
        Deterministischer Endlicher Automat
        
DEBI
        DMA Extended Bus Interface (Acorn, DMA)
        
DEC
        Digital Equipment Corporation (manufacturer)
        
DECIX
        DEutscher Commercial Internet eXchange (Internet), "DE-CIX"
        
DECNET
        Digital Equipment Corporation NETwork (DEC)
        
DECT
        Digital European Cordless Telecommunications (DFUe)
        
DECUS
        Digital Equipment Computer Users Society (org., DEC, user group)
        
DEE
        DatenEndEinrichtung
        
DEG
        DatenElementGruppen (HBCI)
        
DELNI
        Digital Ethernet Local Network Interconnect (ethernet)
        
DELQA
        Digital Ethernet Lowpower Q-bus network Adapter (ethernet)
        
DELTA
        Developing European Learning through Technology Advance
        
DELUA
        Digital Ethernet Lowpower Unibus network Adapter (ethernet)
        
DELUG
        DEutsche Linux User Group (org., user group, Linux)
        
DEMARC
        Distributed Enterprise Management ARChitecture (Banyan, VINES), "DeMarc"
        
DEMPR
        Digital Ethernet Multi-Port Repeater (ethernet)
        
DEN
        Directory Enabled Networking (MS)
        
DEN
        Document Enabled Networking (Novell, Xerox)
        
DENIC
        DEutsches Network Information Center, (org., Internet), "DE-NIC"
        
DEPCA
        Digital Ethernet Personal Computer-bus Adapter (ethernet)
        
DEQNA
        Digital Ethernet Q-bus Network Adapter (ethernet)
        
DEREP
        Digital Ethernet REPeater (ethernet)
        
DES
        Data Encryption Standard (cryptography, NIST, IBM)
        
DES
        Destination End System
        
DESCBC
        Data Encryption Standard/Cipher Block Chaining (DES), "DES/CBC"
        
DESE
        [PPP] Data Encryption Standard Encryption protocol (PPP, RFC 1969)
        
DESIRE
        DEsign by Simulation and REndering om parallel architectures [project] (ESPRIT)
        
DESP
        Data Element Standardization Program
        
DESPR
        Digital Ethernet Single Port Repeater (ethernet)
        
DESRT
        DEStek [group] Real Time (OS, Destek Group), "DES RT"
        
DESTA
        Digital Ethernet thin-wire STation Adapter (ethernet)
        
DETEBERKOM
        DEutsche TElekom BERliner KOMmunikationssystem, "DeTeBerkom" 
        
DEUNA
        Digital Ethernet Unibus Network Adapter (ethernet)
        
DEVFS
        DEVice File System (Linux, DRI), "DevFS"
        
DF
        Direction Flag (assembler)
        
DF
        Disk Free (Unix)
        
DFD
        Data Flow Diagram / DatenFlussDiagramm (CASE, SA)
        
DFD
        Deutsches FernerkundungsDatenzentrum (org.)
        
DFDSM
        Data Facility Distributed Storage Management (IBM)
        
DFG
        Deutsche ForschungsGemeinschaft (org.)
        
DFI
        Digital Facility Interface
        
DFKI
        Deutsches Forschungszentrum fuer Kuenstliche Intelligenz (org., KI)
        
DFN
        Deutsches ForschungsNetz [e.V.] (org., ISP)
        
DFNCERT
        Deutsches ForschungsNetz Computer Emergency Response Team (DFN, Internet), "DFN CERT"
        
DFP
        Data Facility Product
        
DFP
        Digital Flat Panel [group / port] (LCD, org., Compaq, Acer, Fujitsu, ATI, Matrox, Samsung, ...)
        
DFP
        Distributed Functional Plane (IN)
        
DFPP
        Digital Flat Panel Port (LCD, DFP)
        
DFS
        Direct File System (Novell, Oracle)
        
DFS
        Distributed File System (DCE)
        
DFSA
        Direct File System Access
        
DFSG
        Debian Free Software Guildlines (Linux, Dabian)
        
DFT
        Discrete Fourier Transformation
        
DFT
        Distributed Function Terminal (IBM)
        
DFT
        Drive Fitness Test (IBM, IDE, HDD)
        
DFU
        Data File Utility (IBM, ADT)
        
        DFUe          DatenFernUebertragung
        
DFV
        DatenFernVerarbeitung
        
DGA
        Direct Graphics Access (XAA, X-Windows)
        
DGCC
        DISA Global Control Center (DISA)
        
DGD
        Deutsche Gesellschaft fuer Dokumentation [e.v.] (org.)
        
DGIS
        Direct Graphics Interface Standard
        
DGP
        Dissimilar Gateway Protocol
        
DGPS
        Differential Global Positioning System (GPS)
        
DGS
        Display GhostScript (GNU, GNUStep, PS)
        
DGSA
        Defense Goal Security Architecture (mil., USA)
        
DGUX
        Data General / UniX (Unix), "DG/UX" 
        
DHCF
        Distributed Host Command Facility (IBM, CCS)
        
DHCP
        Dynamic Host Configuration Protocol (TCP/IP, IETF, RFC 2131)
        
DHIS
        Distributed Heterogeneous Information Systems
        
DHTML
        Dynamic HyperText Markup Language (HTML)
        
DI
        Destination Index [register] (CPU, Intel, assembler)
        
DIA
        Deutsche Informatik Akademie (org.)
        
DIA
        Document Interchange Architecture (IBM, CCS)
        
DIAMOND
        Development and Integration of Accurate Mathematical Operations in Numerical Data-processing (ESPRIT)
        
DIANE
        DIrect Access Network for Europe
        
DIB
        Defense Information Base (mil., USA)
        
DIB
        Device Independent Bitmap
        
DIB
        Directory Information Base (X.500, DS)
        
DIB
        DOS Info Block (BIOS, DOS)
        
DIB
        Dual Independent Bus
        
DIBL
        Drain Induced Barrier Lowering (IC, MOSFET)
        
DIC
        Digital Interface Controller
        
DICE
        Delivering Information in a Cellular Environment (SNI, Internet)
        
DICF
        Dictionary InterChange Format (DICT)
        
DID
        Digital Image Design
        
DIESEL
        Dumb Interpretatively Evaluated String Expression Language (AutoCAD)
        
DIF
        Document Interchange Format
        
DIFMOS
        Double Injection Floating Gate MOS
        
DIGI
        Deutsche InteressenGemeinschaft Internet [e.v.] (org., ISP)
        
DII
        Defense Information Infrastructure (mil., USA, DISA)
        
DII
        Dynamic Invocation Interface
        
DIICC
        Defense Information Infrastructure Control Concept (mil., USA)
        
DIICOE
        Defense Info Infrastructure Common Operating Environment (DISA, mil., USA), "DII COE"
        
DIL
        Dual InLine
        
DIME
        Desktop Integrated Media Environment (COSE)
        
DIME
        DIrect Memory Execute (AGP)
        
DIMM
        Dual Inline Memory Module (IC)
        
DIMSS
        DSN Integrated Management Support System (DSN, mil., USA)
        
DIN
        Deutsches Institut fuer Normung (org.)
        
DINAH
        Desktop INterface to AUTODIN Host (AutoDIN, mil., USA)
        
DINO
        Deutsches InterNet Organisationssystem (WWW, Uni Goettingen, Germany)
        
DIP
        Dial-up Internet Protocol (Linux)
        
DIP
        Dual In-line Package (IC, DRAM)
        
DIRMU
        DIstributed and Reconfigurable MUltiprocessor (MP)
        
DIS
        Defense Information System (mil., USA)
        
DIS
        Digital Identification Signal (HDLC)
        
DIS
        Draft International Standard (ISO)
        
DISA
        Data Interchange Standards Association (org.)
        
DISA
        Defense Information Systems Agency (org., mil., USA)
        
DISAIS
        DISA Information System (mil., USA), "DISA-IS"
        
DISANET
        DISA Information Network (mil., USA, DISA, network), "DISANet"
        
DISC
        Defense Information System Council (mil., USA)
        
DISK
        Deutschsprachige Internationale SAS-benutzer Konferenz
        
DISN
        Defense Information Systems Network (mil., USA)
        
DISNET
        Defense Integrated Secure Network (network, mil., USA, predecessor, DSNET)
        
DISNNT
        Defense Information Systems Network - Near Term (DISN, mil., USA), "DISN-NT"
        
DISOSS
        DIStributed Office Support System (IBM, MVS)
        
DISP
        Directory Information Shadowing Protocol
        
DISP
        Draft International Standardized Profiles (ISO)
        
DISP
        Dutch Independent Shareware Programmer (org., Netherlands), "D.I.S.P."
        
DISSP
        Defense Information System Security Program (mil., USA)
        
DIT
        Directory Information Tree (X.500)
        
DITCO
        Defense Information Technology Contracting Office (org., mil., DISA, USA)
        
DIU
        Digital Interface Unit
        
DIVE
        Direct Interface Video Extensions (IBM, MMPM/2)
        
DIVX
        DIgital Video eXpress (DVD), "Divx"
        
DIX
        DEC, Intel, Xerox (ethernet, DEC, Intel, Xerox)
        
DKE
        Deutsche Elektrotechnische Kommission (org., DIN, VDE)
        
DKRZ
        Deutsches KlimaRechenZentrum (org.)
        
DL
        Distribution List
        
DLC
        Data Link Control
        
DLCI
        Data Link Connection Identifier (ATM)
        
DLD
        Deutsche Linux Distribution (Linux)
        
DLE
        Data Link Escape
        
DLG
        Digital Line Graph
        
DLKL
        ??? (DB)
        
DLL
        Delay Locked Loop (GDR-SDRAM)
        
DLL
        Dynamic Link Library
        
DLL
        Dynamic Link Loader (BS2000)
        
DLP
        Digital Light Processing (TI)
        
DLP
        Discrete Logarithmic Problem
        
DLPI
        Data Link Provider Interface (X/Open)
        
DLR
        Dynamic Link Routine
        
DLS
        DOS LAN Services (IBM, LAN Server)
        
DLS
        DownLoadable Sounds
        
DLSW
        Data Link SWitching (APPN, MPTN, RFC 1795, SNA, NETBIOS), "DLSw"
        
DLT
        Digital Line Tape (DEC, Streamer)
        
DM
        Delta Modulation
        
DM
        DeMilitarisierte zone (Firewall)
        
DM
        Development Machine (Corel)
        
DM
        Disconnect Mode (LAPB)
        
DMA
        Direct Memory Access (DMA)
        
DMAC
        Direct Memory Access Controller
        
DMAP
        DECT Multimeda Access Protocol (DECT)
        
DMB
        Digital Multimedia Broadcasting (Telekom, Blaupunkt, DAB)
        
DMC
        Desktop Multimedia Conferencing
        
DMCA
        Digital Millennium Copyright Act (USA)
        
DMD
        Device Manager Driver (OS/2)
        
DMD
        Differential Mode Delay (Gigabit-, ethernet)
        
DMD
        Digital Micromirror Device (IC, DLP, TI)
        
DMD
        Directory Management DOMAIN (OSI, DS)
        
DMDAC
        Dual MAC Dual Attached Concentrator (FDDI, DAC)
        
DMDD
        Distributed Multiplexing Distributed Demultiplexing
        
DMDF
        Distributed Management Data Facility (DCE, DME)
        
DME
        Direct Memory Execution
        
DME
        Distributed Management Environment (OSF)
        
DMERT
        Duplex Multiple Environment, Real Time (OS, MERT)
        
DMF
        Digest Message Format (Internet, RFC 1153)
        
DMF
        Distribution Media Format [diskette] (FDD)
        
DMI
        Definition of Management Information (OSI)
        
DMI
        Desktop Management Interface (DTMF, DMI, BIOS)
        
DMI
        Digital Multiplexed Interface
        
DML
        Data Manipulation Language
        
DML
        Data Manipulation Logic
        
DML
        Distributed Mode Loudspeaker (audio)
        
DMOS
        Diffusion Metal Oxide Semiconductor (IC)
        
DMP
        Dot Matrix Printer
        
DMS
        Data Management System
        
DMS
        Defense Message System (mil., USA)
        
DMS
        Digital Multiplexed System
        
DMS
        Disk Monitor System (OS, IBM)
        
DMS
        Distributed Media Services (COSE)
        
DMS
        Document Management System
        
DMSCMS
        Display Management System/Conversional Monitor System, "DMS/CMS" 
        
DMSIG
        Defense Message System Implementation Group (org., DMS, mil., USA)
        
DMSP
        Distributed Mail System Protocol (Internet)
        
DMSTWG
        Defense Message System Transition Working Group (org., DMS, mil., USA)
        
DMT
        Discrete Monitor Timings (VESA)
        
DMT
        Discrete Multitone Technology (ADSL, Amati Communications, ANSI)
        
DMTF
        Desktop Management Task Force
        
DMTU
        Default Maximum Transmission Unit (MTU), "D-MTU"
        
DMU
        Data Manipulation Unit
        
DMV
        Daten- und MedienVerlag
        
DMV
        Deutsche Mathematiker-Vereinigung (org.)
        
DMZ
        DeMilitarized Zone (LAN, Internet)
        
DN
        Distinguished Name (X.500)
        
DN
        Distribution Network
        
DNA
        Digital Network Architecture (DEC)
        
DNA
        Direct Network Attach (Xyratex, RAID)
        
DNA
        Distributed Network Architecture (NCR)
        
DNAE
        DatenNetz-AnschlussEinrichtung (Telekom)
        
DNAT
        Dynamic Network Address Translation
        
DNC
        Direct Numerical Control (CNC)
        
DNC
        Dynamic Network Controller
        
DNCMPE
        Direct Numerical Control / ??? (CNC), "DNC/MPE"
        
DNCP
        [PPP] DECNet phase iv Control Protocol (RFC 1762, DECNET, PPP)
        
DNCRI
        Division of Networking and Communication Research and Infrastructure
        
DND
        Den Norske Dataforening (org., Norway)
        
DNHR
        Dynamic Non Hierarchical Routing
        
DNI
        De.Newusers.Info (Usenet)
        
DNI
        DECnet Network Interface
        
DNIC
        Data Network Identification Code (X.121)
        
DNQ
        De.Newusers.Questions (Usenet)
        
DNR
        Digital Noise Reduction
        
DNS
        DOMAIN Name System (Internet, RFC 1034/1035, DNS)
        
DNSO
        Defense Network Systems Organization (org., USA, mil.)
        
DNSO
        Domain Name Supporting Organization (org., ICANN)
        
DNSTAN
        Digitale NebenSTellenANlagen (Telekom), "DNStAn"
        
DNUG
        Deusche Notes User Group [e.v.] (org., user group, Lotus)
        
DNX
        Departmental Network eXchange [bridging router] (SNA, SDLC, Proteon)
        
DO
        Distributed Objects (NeXT)
        
DOAM
        Distributed Office Applications Model (ISO, IEC, DIS 10031-1 f.)
        
DOC
        De.Org.CCC (Usenet, CCC)
        
DOCC
        DISA Operations Control Complex (DISA, mil., USA)
        
DOCSIS
        Data Over Cable System Interface Specification
        
DODISS
        Department Of Defense Index of Specifications and Standards (mil., USA)
        
DOE
        Depends On Experience
        
DOE
        Distributed Objects Everywhere (Sun)
        
DOM
        Disk On Module
        
DOM
        Document Object Model (MS)
        
DOMAIN
        Distributed Operating Multi Access Interactive Network (Apollo, Internet)
        
DOME
        Distributed Object Management Environment (ORB)
        
DOMF
        Distributed Object Management Facility (Sun)
        
DOOM
        Decentralised Object Orientated Machine
        
DOP
        Directory Operational binding management Protocol
        
DOS
        Denial Of Service [attack], "DoS"
        
DOS
        Disk Operating System (OS, IBM, MS, ..., PC, Apple, RCA Spectra 70)
        
DOS15
        Disk Operating System - 15 (OS, DEC, PDP 15), "DOS-15"
        
DOS360
        Disk ??? Operating System / 360 (OS, IBM S/360), "DOS/360"
        
DOSS
        Dedicated Office Systems and Services
        
DOSVS
        Disk ??? Operating System / Virtual Storage (OS, IBM S/370), "DOS/VS"
        
DOSVSE
        Disk ??? Operating System / Virtual Storage Extended (OS, IBM 43XX, DOS/VS, VSE), "DOS/VSE"
        
DOV
        Data Over Voice [MODEM]
        
DOW
        Direct OverWrite (MO, ...)
        
DP
        Data Processing
        
DP
        Detection Point (IN)
        
DP
        Draft Proposal (ISO)
        
DPA
        Distributed Password Authentication
        
DPB
        Drive Parameter Block (DOS, BIOS, FDD, HDD)
        
DPC
        Database Promotion Center (org., Japan, DB)
        
DPD
        Differential Phase Detection
        
DPE
        Distributed Processing Environment (IN)
        
DPF
        Discrete Packet Format (VXA, Streamer)
        
DPG
        Deutsche Physikalische Gesellschaft (org.)
        
DPI
        [SNMP] Distributed Program Interface (SNMP, RFC 1228)
        
DPI
        [SNMP] Distributed Protocol Interface (SNMP, RFC 1592)
        
DPI
        Data Processing Installation
        
DPI
        Dots Per Inch
        
DPL
        Descriptor Privilege Level (OS/2, NT)
        
DPM
        Defects Per Million
        
DPMA
        Data Processing Management Association (org.)
        
DPMA
        Demand Priority Access Method
        
DPMI
        DOS Protected Mode Interface (DOS, MS, Intel)
        
DPMS
        Display Power Management Signalling [standard] (VESA)
        
DPMS
        DOS Protected Mode Services (Novell, DOS)
        
DPN
        Data Packet Network (Nortel)
        
DPN
        Data Processing Node (MODEM)
        
DPN
        Deutsches Provider Network (ISP)
        
DPNPH
        Data Packet Network-Packet Handler, "DPN-PH" 
        
DPOF
        Digital Print Order Format
        
DPP
        Distributed Parallel Processing
        
DPQ
        Data Processing Quality
        
DPRL
        Digital Property Rights Language (Xerox)
        
DPS
        Display PostScript (NeXT, GUI, NextStep, DPS)
        
DPSE
        Display PostScript Engine (DPS, NextStep, OpenStep, Apple, Rhapsody)
        
DPSK
        Differential Phase Shift Keying (DFUe)
        
DPT
        Distributed Processing Technology (manufacturer)
        
DPT
        Drive Parameter Table
        
DPT
        Dynamic Packet Transport (Cisco)
        
DPV
        DatenPaketVermittlung [srechner]
        
DQDB
        Distributed Queue Dual Bus (ISO, IEC, IS 8802/6, IEEE 802.6)
        
DQL
        Database Query Language (DB)
        
DQP
        Distributed Queueing Protocol
        
DQS
        Distributed Queueing System (Cluster)
        
DR
        Designated Router (PIM, Multicast)
        
DR
        Developer Release (Linux, Apple, ...)
        
DR
        Digital Research (manufacturer)
        
DRAM
        Dynamic Random Access Memory (RAM, IC)
        
DRB
        DRAM Row Boundary [register] (DRAM, PCI)
        
DRC
        Design Rule Checks (CAD)
        
DRD
        Data Reading Device
        
DRDA
        Distributed Relational Database Architecture (IBM, DB)
        
DRDAAS
        Distributed Relational Database Architecture Application Server (IBM, DB), "DRDA AS"
        
DRDOS
        Digital Research Disk Operating System (DR, OS), "DR-DOS"
        
DREN
        Defense Research and Engineering Network (network)
        
DRF
        Data Recovery Field
        
DRG
        Developer Relations Group (MS)
        
DRI
        Defense Research Internet (ARPANET, successorr, network)
        
DRI
        Direct Rendering Infrastructure (XFree86)
        
DRL
        Dynamically Reconfigurable Logic (RL)
        
DRM
        Destination Release Mechanism (DQDB)
        
DRM
        Digital Rights Management (MS)
        
DRMU
        Digital Remote Measurement Unit
        
DRP
        DECnet Routing Protocol (DEC)
        
DRSN
        Defense Red Switch Network [hopefully no traffic ever] (network, mil. USA)
        
DS
        Data Segment [register] (CPU, Intel, assembler)
        
DS
        Deutschsprachige Shareware (org.)
        
DS
        Digital Services [level]
        
DS
        Directory Service (OSI, ISO, DP 9594)
        
DS
        Distribution Services (SNA)
        
DS
        Distribution System (WLAN)
        
DS
        Double Sided [disks] (FDD)
        
DS0
        Digital Signal level 0 (ISDN, T1), "DS-0"
        
DS1
        Digital Signal level 1 (ISDN, T1), "DS-1"
        
DS1E1
        ??? (RFC 1406), "DS1/E1"
        
DS2
        Digital Signal level 2, "DS-2"
        
DS3
        Digital Signal level 3 (T3), "DS-3" 
        
DS3
        Digital Signal level 3, "DS-3"
        
DS3E3
        ??? (RFC 1407), "DS3/E3"
        
DSA
        Data Service Adapter
        
DSA
        Digital Signature Algorithm (cryptography, NIST)
        
DSA
        Digital Storage Architecture
        
DSA
        Directory System Agent (X.500, DSA)
        
DSA
        Distributed Systems Architecture (Bull)
        
DSA
        Dynamic Scalable Architecture (DB, Informix)
        
DSAP
        Destination link Service Access Point (SAP, LLC)
        
DSAT
        Deep Shit Alert Table (Apple, MACOS)
        
DSBAM
        Double-SideBand Amplitude Module
        
DSC
        Document Structuring Conventions (Adobe)
        
DSD
        Data Structure Diagram (CASE)
        
DSD
        Direct Stream Digital (Sony, Philips)
        
DSDC
        Data Segment Descriptor Cache [register] (DS, Intel, CPU)
        
DSDL
        Data Storage Definition ??? Language (DB)
        
DSDT
        Differentiated System Description Table (ACPI)
        
DSE
        Data Switching Equipment (X.25, CCITT)
        
DSE
        Distributed Systems Environment (Honeywell, Bull)
        
DSEA
        DataStation Emulation Adapter (IBM, AS/400, ...)
        
DSEE
        Distributed Software Engineering Environment ??? (Apollo, CM)
        
DSH
        Desperately Seeking Help (slang, Usenet)
        
DSI
        Defense Simulation Internet (network, mil., USA)
        
DSI
        Dial Services Interface [API] (API, IBM)
        
DSI
        Digital Speech Interpolation (VOFR)
        
DSI
        Dynamic Skeleton Interface (CORBA, ORB, OA)
        
DSID
        Destination Signaling IDentifier
        
DSIMM
        Dual [RAS] Single Inline Memory Module (IC), "D-SIMM"
        
DSL
        Dialogue Scripting Language (DCE, UIL)
        
DSL
        Digital Subscriber Line (DSL)
        
DSL
        Digital system Specification Language (HDL)
        
DSL
        Distributed Service Logic (IN)
        
DSLAM
        Digital Subscriber Line Access Multiplexer (DSL, ADSL)
        
DSLCP
        Dynamically Switched Link Control Protocol (RFC 1307)
        
DSM
        [TWAIN] Data Source Manager (MS, Windows)
        
DSMN
        Directory Service Manager for Netware (MS, Windows NT, FPNW)
        
DSN
        Defense Switched Network (mil., USA)
        
DSN
        Delivery Status Notification
        
DSN
        Developer Support News (IBM, OS/2)
        
DSN
        Distributed Systems Network (HP)
        
DSNET
        Defense Secure NETwork (mil., USA)
        
DSOM
        Distributed System Object Model (IBM)
        
DSP
        Digital Signal Processing / Processor (audio, video, RL, DSP)
        
DSP
        Directory System Protocol (X.500, DS)
        
DSP
        Document Services for Printing (Xerox), "DS/P"
        
DSP
        DOMAIN Specific Part (NSAP, IDL)
        
DSR
        Data Set Ready (MODEM, RS-232)
        
DSR
        Device Status Report
        
DSR
        Digital Signal Richtfunk Mil., Germany
        
DSRI
        Digital Standard Relational Interface
        
DSRS
        Defense Software Repository System (mil., USA)
        
DSS
        Decision Support System (IM)
        
DSS
        Defense Switched Services (mil., USA)
        
DSS
        Digital Signature Standard (NIST, cryptography)
        
DSS
        Directory and Security Services (DCE, IBM, LAN)
        
DSS
        Distributed Security Service (DCE)
        
DSS2
        [setup] Digital Subscriber Signaling #2
        
DSSCS
        Defense Special Security Communications System (mil., USA)
        
DSSI
        Digital Storage Systems Interconnect (VAX, DEC)
        
DSSS
        Direct Sequence Spread Spectrum (WLAN)
        
DSSSL
        [standard] Document Style Semantics and Specification Language (DTD, ISO, IEC, DIS 10179)
        
DST
        Daylight Saving Time (TZ)
        
DSTN
        Double SuperTwisted Nematic (LCD)
        
DSU
        Data Secure Unix (Unix, OS, UCLA)
        
DSU
        Digital Service Unit (ATM)
        
DSU
        Distribution Service Unit (IBM, SNADS)
        
DSV
        Digital Signal Verbindung Mil., Germany
        
DSVD
        Digital Simultaneous Voice and Data (MODEM)
        
DT
        Display Terminal
        
DT
        Distributed graphical user interface Toolkit (IBM, GUI, VM/ESA)
        
DTA
        Direct Tape Access (Seagate)
        
DTA
        Disk Transfer Area (DOS)
        
DTAM
        Document Transfer, Access and Manipulation (CCITT, T.400, ODIF)
        
DTAP
        Direct Transfer Application Part (MS, MM, MTP)
        
DTC
        Design Time Controls (MS)
        
DTC
        DeskTop Conferencing
        
DTC
        Distributed Transaction Coordinator (MS, SQL Server, DB)
        
DTD
        Document Type Definition (SGML, XML. HTML, DTD)
        
DTE
        Data Terminal Equipment (X.25, CCITT)
        
DTE
        DatenTransferEinrichtung
        
DTH
        DialogTestHilfe (BS2000)
        
DTK
        Deception ToolKit
        
DTLB
        Dual Translation Lookaside Buffer (CPU)
        
DTMF
        DeskTop Management task Force (Intel)
        
DTMF
        Dual Tone Multi Frequency
        
DTMP
        DCPS Management Panel (DCPS)
        
DTMS
        Document Transfer and Manipulation Services (CCITT, T.400)
        
DTP
        DeskTop Publishing
        
DTP
        Distributed Transaction Processing (X/Open, OLTP)
        
DTP
        Document Transfer Profile (SPAC, ODA, DAP, predecessor)
        
DTR
        Data Terminal Ready (MODEM, RS-232)
        
DTR
        DeskTop Reproduction (DTP)
        
DTR
        Document Filing and Retrieval (DOAM, ISO, IEC, DIS 10166-1 f.)
        
DTR
        Draft Technical Report
        
DTS
        Digital Theatre Sound (audio)
        
DTS
        Direct To SOM
        
DTS
        Distributed Time Server
        
DTS
        Distributed Time Service (DCE)
        
DTSS
        Dartmouth Time-Sharing System (OS)
        
DTU
        Demand Transmission Unit
        
DU
        Disk Used (Unix)
        
DU
        Distribution Unit (MS, MSIE)
        
DUA
        Directory User Agent (X.500, DS)
        
        DUeE          DatenUebertragungsEinrichtung
        
        DUeE          DatenUebertragungsEinrichtung (Telekom)
        
DUN
        Dial Up Networking
        
DUOW
        Distributed Unit Of Work (DRDA, IBM), "DUoW"
        
DUP
        Distribution Unit Profile (MS, OSD, DU, MSIE)
        
DV
        DatenVerarbeitung
        
DV
        Digital Video
        
DVA
        DatenVerarbeitungsAnlage
        
DVB
        Digital Video Broadcasting (Europe, DVB)
        
DVBC
        Digital Video Broadcasting - Cable (DVB), "DVB-C"
        
DVBNIP
        Digital Video Broadcasting - ? (DVB), "DVB-NIP"
        
DVBRC
        Digital Video Broadcasting - ? (DVB), "DVB-RC"
        
DVBRCGSM
        Digital Video Broadcasting - ? (DVB), "DVB-RCGSM"
        
DVBRCT
        Digital Video Broadcasting - ? (DVB), "DVB-RCT"
        
DVBS
        Digital Video Broadcasting - Satellite (DVB), "DVB-S"
        
DVBT
        Digital Video Broadcasting - Terrestic (DVB), "DVB-T"
        
DVC
        Digital Video Compression (video)
        
DVD
        Deutsche Vereinigung fuer Datenschutz [e.V.] (org.)
        
DVD
        Digital Versatile Disk (CD, MPEG, DVD)
        
DVD
        Digital Video Disk [old term] (DVD)
        
DVDCCA
        DVD Copy Control Association (DVD, org.), "DVD CCA"
        
DVDR
        Digital Versatile Disk Recodable (DVD), "DVD-R"
        
DVDRAM
        Digital Versatile Disk Random Access Memory (DVD), "DVD-RAM"
        
DVDROM
        Digital Versatile Disk Read Only Memory (DVD, ROM), "DVD-ROM"
        
DVDRW
        Digital Versatile Disk + ReWritable (PC-RW, DVD, Sony, Philips, HP, Mitsubishi, Ricoh, Yamaha), "DVD+RW"
        
DVI
        DeVice Independent
        
DVI
        Digital Video Interactive (LCD, Intel, IBM, Lotus, HP, Compaq, ...)
        
DVID
        Digital Video Interactive - Digital (LCD), "DVI-D"
        
DVL
        Digital Video Link
        
DVMA
        Direct Virtual Memory Access
        
DVMRP
        Distance Vector Multicast Routing Protocol (IP, Multicast)
        
DVPT
        Deutscher Verbandes fuer Post und Telekommunikation (org.)
        
DVR
        ??? (DTP, Truevision)
        
DVS
        DatenVerwaltungsSystem (BS2000)
        
DVS
        Digital Video Systems (manufacturer)
        
DVST
        DatenVermittlungsSTelle (Telekom)
        
DVSTP
        DatenVermittlungsSTelle mit Paketvermittlung (Telekom), "DVST-P"
        
DVT
        Deutscher Verband Technisch-wissenschaftlicher vereine (org.)
        
DVX
        Digital Voice eXchange
        
DWANGO
        Dialup Wide-Area Network Game Organization (IVS Corporation)
        
DWDM
        Dense Wavelength Division Multiplexing [protocol]
        
DWF
        Drawing Web Format (AutoCAD)
        
DWH
        Data WareHouse (DB)
        
DWH
        DISA Western Hemisphere (DISA, mil., USA)
        
DWIM
        Do What I Mean (DFUe, Usenet, IRC)
        
DWM
        Diskless Workstation Management (AIX, IBM)
        
DWMT
        Discrete Wavelet MultiTone [modulation]
        
DWT
        Discrete Wavelet Transformation
        
DXA
        Directory eXchange Agent
        
DXI
        Data eXchange Interface
        
DXJ
        Datex J (Telekom), "DxJ"
        
DXJVST
        Datex J VermittlungsSTelle (Telekom), "DxJ VSt
        
DXS
        Directory eXchange Server
        

        
        









        

E1
        European digital transmission format 1 [2.048 Mbps]
        
E2
        European digital transmission format 2 [8.448 Mbps]
        
E3
        End-to-End Encryption (cryptography)
        
E3
        European digital transmission format 3 [34.368 Mbps]
        
E4
        European digital transmission format 4 [139.264 Mbps]
        
E5
        European digital transmission format 5 [565.148 Mbps]
        
EA
        Eingabe/Ausgabe, "E/A" 
        
EA
        Escrowed Authenticator (cryptography, EES)
        
EA
        Extended Attribute (OS/2)
        
EAB
        Enterpreise Access Builder (IBM, Java)
        
EADAS
        Engineering and Administrative Data Acquisition System (EADAS)
        
EADASNM
        EADAS/Network Management (EADAS), "EADAS/NM" 
        
EADF
        Elliptical Aperture with Dynamic Focus
        
EAI
        Enterprise Application Integration
        
EAI
        External Authoring Interface (VRML)
        
EAM
        Evanescent Access Method (BS2000)
        
EAN
        European Article Numbering [system]
        
EANTC
        European Advanced Networking Test Center (org., Berlin, Germany, ANTC, FDDI)
        
EAP
        Extensible Authentication Protocol
        
EARN
        European Academic Research Network (network)
        
EAROM
        Electrically Alterable Read Only Memory (ROM, IC)
        
EAS
        Enterprise Access System (Dynatech)
        
EASE
        Easy Access System Europe (Novell, FTP)
        
EASI
        Enhanced Asynchronous SCSI Interface
        
EATA
        Enhanced AT Bus Attachment
        
EATCS
        European Association for Theoretical Computer Science (org., Europe)
        
EAX
        ??? (audio)
        
EAZ
        EndgeraeteAuswahlZiffer (ISDN)
        
EB
        Electronic Banking (banking)
        
EBA
        Electronic Business Assurance, "eBA"
        
EBAM
        Electronic Beam-Addressable Memory (IC)
        
EBAS
        Elektronisches teile-BestellAbwicklungsSystem (MBAG)
        
EBC
        EISA Bus Controller (Wyse)
        
EBCDIC
        Extended Binary-Coded Decimal Interchange Code
        
EBCOT
        Embedded Block Coding with Optimal Truncation (JPEG)
        
EBCS
        European Committee for Banking Standards (org., Europe, banking)
        
EBNF
        Extended Backus-Naur-Form
        
EBR
        Enterprise Backup and Restore (ENS, Banyan, VINES)
        
EBR
        Extended Boot Record (MBR)
        
EBROM
        Electronic Book - Read Only Memory (ROM), "EB-ROM" 
        
EBU
        European Broadcasting Union (org., Europe)
        
EBUS
        Elektronisches teile-BUchungsSystem (MBAG)
        
EBV
        Elektronische BildVerarbeitung
        
EC
        Electronic Commerce
        
EC
        Error Correction (MODEM)
        
ECAI
        European Conference on Artificial Intelligence (conference, AI, ECCAI, Europe)
        
ECB
        Electronic CodeBook [mode] (cryptography, DES)
        
ECB
        Event Control Block (IPX)
        
ECC
        Electrical Connectivity Checks (CAD)
        
ECC
        Elliptic Curve Cryptosystem (Certicom, cryptography)
        
ECC
        Error Checking and Correction
        
ECC
        Error Correction Circuit (CPU, POWER)
        
ECC
        Error Correction Code (CD)
        
ECCAI
        European Coordinating Committee for Artificial Intelligence (org., AI, Europe)
        
ECCO
        Execute with Correct Checksum Only
        
ECCRAM
        Error Checking and Correction ??? Random Access Memory (RAM)
        
ECD
        Energy Conversion Devices (manufacturer, OUM)
        
ECDC
        Electronic Comerce for Developing Countries (ITU)
        
ECDL
        European Computer Driving License
        
ECEDI
        Electronic Commerce/Electronic Data Interchange (EC, EDI), "EC/EDI"
        
ECF
        Enhanced Connectivity Facilities (IBM)
        
ECHO
        European Community Host Organisation (org., Europe)
        
ECHT
        European Conference on Hypermedia Technology (INRIA, conference)
        
ECI
        Efficient Channel Integration (ADC, EDI)
        
ECL
        EClectic Language (Harvard, TOPS)
        
ECL
        Emitter Coupled Logic
        
ECM
        Entity Coordination Management (FDDI, SMT)
        
ECM
        Error Correction / Correcting Mode (FAX, HDLC)
        
ECMA
        European Computer Manufacturers Association (org., Europe)
        
ECN
        European Counter Network
        
ECN
        Explicit Congestion Notification (IP, RFC 2481)
        
ECNE
        Enterprise Certified Novell Engineer (Novell, Netware)
        
ECOC
        European Conference on Optical Communications (conference)
        
ECOM
        Electronic Computer Originated Mail, "E-COM" 
        
ECOOP
        European Conference on Object Orientated Programming (OOP, conference)
        
ECP
        [PPP] Encryption Control Protocol (PPP, RFC 1968)
        
ECP
        Enhanced Capability Port (MS)
        
ECP
        Enhanced Communication Port / Protocol
        
ECP
        Exessive CrossPosting (Usenet, EMP, spam)
        
ECPA
        Electronic Communications Privacy Act (USA)
        
ECR
        Engineering Change Request (PCI)
        
ECRC
        [cable & wireless] European Computer industry Research Centre [gmbh] (ISP, org.)
        
ECRM
        Electronic Customer Relationship Management (Internet), "eCRM"
        
ECS
        EComStation (OS/2), "eCS"
        
ECS
        Elitegroup Computer Systems (manufacturer, Taiwan)
        
ECS
        Enhanced Chip Set (Amiga, Commodore)
        
ECSA
        Exchange Carriers Standards Association (org.)
        
ECSC
        European Customer Support Centre (HP)
        
ECSD
        Enhanced Circuit Switched Data (8-PSK, mobile-systems)
        
ECTS
        European Computer Trade Show (fair, London)
        
ECU
        EISA Configuration Utility (EISA)
        
ED
        End Delimiter (FDDI, Token Ring)
        
ED
        Enhanced Density
        
EDA
        Electronic Design Automation (RL, IC)
        
EDAC
        Electromechanical Digital Adapter Circuit
        
EDAC
        European Conference on Design Automation (IEEE-CS, conference)
        
EDBS
        Einheitliche DatenBank-Schnittstelle (DB)
        
EDC
        Error Detection Code (CD)
        
EDD
        Enterprise Data Distribution (ENS, Banyan, VINES)
        
EDGAR
        Electronic Data Gathering, Analysis, and Retrieval [system] (DB, Internet)
        
EDGE
        Enhanced Data rate for GSM Evolution (GSM, mobile-systems)
        
EDI
        Electronic Data Interchange (GOSIP)
        
EDID
        Extended Display Identification Data [standard] (VESA, DDC)
        
EDIF
        Electronic Design Interchange Format
        
EDIFACT
        Electronic Data Interchange For Administration, Commerce and Transport
        
EDLC
        Ethernet Data Link Control (ethernet)
        
EDM
        Engineering Data Management
        
EDM
        Extended Data Message
        
EDMCC
        European Distributed Memory Computing Conference (GI, ITG, IFIP, conference)
        
EDMS
        Engineering Document Management System
        
EDO
        Extended Data Out [ram] (RAM, DRAM, IC)
        
EDODRAM
        Extended Data Out Dynamic Random Access Memory (RAM), "EDO-DRAM" 
        
EDORAM
        Extended Data Out Random Access Memory (RAM, IC), "EDO-RAM"
        
EDOS
        Elektronisches DateiOrganisationsSystem (MBAG)
        
EDP
        Electronic Data Processing
        
EDP
        Electronic Data Processing
        
EDP
        Enhanced Dot Pitch (Hitachi)
        
EDPS
        Electronic Data Processing System
        
EDR
        External Developer Release
        
EDRAM
        Enhanced Dynamic Random Access Memory (RAM, DRAM, IC)
        
EDS
        Electronic Data Systems [corporation] (provider, USA)
        
EDSAC
        Electronic Delay Storage Automatic Calculator
        
EDSRA
        Earth Data System Reference Application (ISH, USA)
        
EDT
        Eastern Daylight Time  [-0400] (TZ, EST, USA)
        
EDV
        Elektronische DatenVerarbeitung
        
EDVAC
        Electronic Discrete Variable Automatic Computer
        
EDX
        Event-Driven eXecutive (OS, IBM)
        
EE
        Emotion Engine (Sony, Playstation)
        
EEAG
        Elektro- und ElektronikAltGeraete
        
EEE
        [UDB] Enterprise Extended Edition (IBM, DB2, DB, UDB)
        
EEI
        Equipment to Equipment Interface
        
EEI
        External Environment Interface (mil., USA)
        
EELS
        Engineering Electronic Library, Sweden (org., WWW, Sweden)
        
EEM
        External Expansion Module (Sun)
        
EEMS
        Enhanced Expanded Memory Specification
        
EEP
        Early Experience Program (Borland)
        
EEP
        Entry Exit Procedure (R:Base, DB)
        
EEPROM
        Electrically Erasable Programmable Read Only Memory (ROM, IC, RL, EPROM)
        
EES
        Escrowed Encryption Standard (cryptography, NSA)
        
EESC
        European EDIF Steering Committee (org., EDIF, Europe)
        
EET
        Eastern European Time [+0200] (TZ)
        
EET
        Edge Enhancement Technology (Seikosha, Itoh)
        
EFAKS
        Elektronisches FAKturierungs- und abrechnungsSystem (MBAG)
        
EFCI
        Explicit Forward Congestion Indication (ATM)
        
EFF
        Electronic Frontier Foundation (Internet, org.)
        
EFI
        Electronics For Imaging (manufacturer)
        
EFI
        Extensible Fimware Interface (Intel, MS)
        
EFL
        Emitter Follower Logic (IC)
        
EFM
        Eight-to-Fourteen-Modulation (CD)
        
EFS
        Encrypting File System (cryptography)
        
EFSM
        Extended Finite State Machine (TTCN, ...)
        
EFT
        Electronic Funds Transfer
        
EFT
        Euro-FileTransfer (ISDN, ETS 300 075)
        
EFTPOS
        Electronic Funds Transfer at the Point-Of-Sale (EFT, banking), "EFT-POS"
        
EFTS
        Electronic Funds Transfer System
        
        EFUe          EmmissionsdatenFernUebertragung (DFUe)
        
EG
        Evil Grin (slang, Usenet, IRC)
        
EGA
        Enhanced Graphics Adapter (predecessor, VGA)
        
EGB
        Elektrostatisch gefaehrdete Bauelemente
        
EGD
        Entropy Gathering Daemon (Unix, GNU, GnuPG)
        
EGG
        Elektronischer Geschaeftsverkehr-Gesetz Germany
        
EGP
        Exterior Gateway Protocol (RFC 904)
        
EGPA
        Erlangen General Purpose Array (MP)
        
EGPRS
        Enhanced General Packet Radio Service (8-PSK, mobile-systems)
        
EGREP
        Extended Global Regular Expression Print (Unix, GREP)
        
EGS
        Enhanced Graphics System (Commodore)
        
EHF
        Encoding Header Field (Internet, RFC 1154)
        
EHKP
        Einheitliche Hoehere KommunikationsProtokolle (BTX, ER, Telekom)
        
EHLLAPI
        Emulator High Level Language API (IBM, 3270, API)
        
EHS
        European Home Systems [concept]
        
EHSA
        European Home Systems Association (org., Europe)
        
EHW
        Evolvable HardWare
        
EIA
        Electronics Industry Association (USA, org.)
        
EIB
        European Installation Bus
        
EIBA
        European Installation Bus Association (org., Europe)
        
EICAVR
        European Institute for Computer Anti-Virus Research (org., Europe)
        
EICL
        European Informatics Continuous Learning (CEPIS)
        
EIDE
        Enhanced Integrated Drive Electronics (HDD, IDE), "E-IDE"
        
EIGRP
        Enhanced Interior Gateway Routing Protocol (IGRP)
        
EINE
        EINE Is Not EMACS (EMACS, LISP)
        
EIO
        Enhanced Input/Output [architecture] (HP)
        
EIP
        Extended Internet Protocol (Internet, RFC 1385)
        
EIS
        Electronic Information Systems (manufacturer)
        
EIS
        European Information System (Europe)
        
EIS
        Executive Information System (IM)
        
EISA
        Enhanced Industry Standard Architecture (ISA)
        
EISA
        European Imaging and Sound Association (org., Europe)
        
EISB
        Electronic Imaging Standards Board (org.)
        
EISS
        Europaeisches Institut fuer SystemSicherheit (org., Karlsruhe, Germany, Europe)
        
EIT
        Encoded Information Type
        
EITS
        Eesti InfoTehnoloogia Seltsi (org., Estland)
        
EJB
        Enterprise Java Beans (Java, Sun)
        
EJC
        Electronic Journal of Communication
        
EKMS
        Electronic Key Management System (cryptography)
        
EKOS
        Elektronisches KOmmunikationsSystem (MBAG)
        
EL
        Electro Luminescent [display]
        
EL1
        Extensible Language one (ECLogic)
        
ELAN
        Education LANguage
        
ELAN
        Emulated Local Area Network (ATM, LANE)
        
ELAP
        Ethernet Link Access Protocol (LAP, ethernet)
        
ELF
        Executable and Linkable Format (Unix, OS/2)
        
ELH
        Entity Life History (DB)
        
ELI
        Embedded LISP Interpreter (Andrew mail system)
        
ELK
        Extension Language Kit (Scheme)
        
ELLIS
        EuLisp LInda System (LISP)
        
ELM
        ELectronic Mailer (Unix)
        
ELO
        Elektronischer Leitz Ordner (OA)
        
ELOD
        Erasable Laser Optical Disk (OD)
        
ELP
        Equational Logic Programming [language]
        
ELRAD
        [magazin fuer] ELektronik und technische RechnerAnwenDungen
        
ELS
        Entry Level System ??? (Novell, Netware)
        
EM
        Extensions Manager (Apple)
        
EMA
        Electronic Messaging Association (org., USA)
        
EMA
        Enterprise Management Architecture (DEC)
        
EMA
        Extended Mercury Autocode
        
EMACS
        Editing MACroS (GNU)
        
EMAS
        Edinburgh Multi-Access System (OS, ICL 4-75)
        
EMB
        Enhanced Master Burst (EISA)
        
EMC
        ElectroMagnetic Compatibility
        
EMEA
        [IBM] Europe, Middle East, Africa (IBM)
        
EMI
        ElectroMagnetic Interference
        
EMI
        External Machine Interface [protocol] (SMS)
        
EMISA
        EntwicklungsMethoden fuer InformationsSysteme und deren Anwendung (org., GI)
        
EML
        Element Management Layer (TMN)
        
EMM
        Expanded Memory Manager
        
EMMA
        European MultiMedia Award
        
EMP
        Excessive Multiple Posting (Usenet, ECP, spam)
        
EMR
        Electro-Magnetic Radiation
        
EMS
        European Mathematical Society (org.)
        
EMS
        Expanded Memory Specification (DOS, Intel)
        
EMSC
        Electronic Mail Standards Committee (org.)
        
EMV
        ElektroMagnetische Vertraeglichkeit (EN 55022, DIN, VDE 0878)
        
EMX
        Enterprise Messaging eXchange [switch]
        
EN
        Europa Norm (Europe)
        
ENA
        Electronic Networking Association (org., Internet)
        
ENA
        Enterprise Networking Association (Banyan, VINES, user group, org.)
        
ENA
        European Networking Associates (org., Europe)
        
ENA
        Extended Network Addressing (IBM, SNA)
        
ENDC
        European Network Design Center (3COM)
        
ENDIVE
        Enhanced Direct Interface Video Extensions (OS/2, MMPM/2, IBM), "EnDIVE"
        
ENF
        Embedded NAS Firmware (RAID, NAS, ArtStor)
        
ENIAC
        Electronic Numerical Integrator And Computer
        
ENP
        Embedded NPrinter (NEST, Novell)
        
ENS
        Enterprise Network Services (Banyan, VINES)
        
ENSIQ
        ENS - Information Query (Banyan, VINES, ENS), "ENS IQ"
        
ENSMT
        ENS - Management Tool (ENS, Banyan, VINES), "ENS-MT"
        
EO
        Europe Online (network)
        
EOA
        End Of Address
        
EOB
        End Of Block
        
EOCB
        Electrical Optical Circuit Board [project] (Bosch, Siemens, IZM, ...)
        
EOD
        End Of Discussion (slang, Usenet, IRC)
        
EOD
        Erasable Optical Disk (OD)
        
EOF
        End Of File
        
EOF
        Enterprise Objects Framework (NeXT)
        
EOI
        End Of Input
        
EOI
        End Of Interrupt
        
EOI
        End Or Identify (GPIB)
        
EOJ
        End Of Job
        
EOL
        End Of Line
        
EOM
        End Of Message
        
EON
        Enhanced Other Networks (RDS)
        
EOP
        End Of Procedure (Fax)
        
EOS
        Electrical OverStress
        
EOS
        Extended Operating System (OS)
        
EOT
        End Of Text
        
EOT
        End Of Thread (slang, Usenet, IRC)
        
EOT
        End Of Transmission
        
EOTD
        Enhanced Observed Time Difference (LBS)
        
EOUG
        European Oracle User Group (org., DB, Oracle, user group, Europe)
        
EOWG
        [WAI] Education and Outreach Working Group (WAI)
        
EP3
        [the] Extensible PERL PreProcessor (PERL)
        
EPA
        Enhanced Performance Architecture
        
EPA
        Environmental Protection Agency (USA, org.)
        
EPAC
        Ein-Platinen-Allzweck-Computer (IC, C'T)
        
EPAC
        Electronic Packaging and Assembly Concept
        
EPBR
        Extended Partition Boot Record (PowerQuest)
        
EPDF
        Embedded Portable Document Format (Adobe, PDF, HTML)
        
EPG
        Electronic Program Guide
        
EPH
        Electronic Payment Handling (banking)
        
EPHOS
        European Procurement Handbook for Open Systems
        
EPIC
        Electronic Privacy Information Center (cryptography)
        
EPIC
        European Public sector Information systems Conference
        
EPIC
        Explicit Parallelism Instruction Computing (Intel)
        
EPIM
        Ethernet Port Interface Module (ethernet)
        
EPIX
        Enhanced Performance unIX (Unix), "EP/IX"
        
EPLD
        Erasable Programmable Logic Device
        
EPN
        Electronic-highway Platform Netherlands (ISP, Netherlands)
        
EPOC
        [not an acronym] (Psion, OS, PDA)
        
EPP
        Education Purchase Plan (Adobe)
        
EPP
        Enhanced Parallel Port / Protocol (Intel, Zenith, Xircom, IEEE 1284)
        
EPROM
        Erasable Programmable Read Only Memory (ROM, IC, RL, EPROM)
        
EPS
        Electronic Publishing Systems
        
EPS
        Embedded PServer (NEST, Novell)
        
EPSA
        Early Page Space Allocation (AIX, IBM)
        
EPSI
        Encapsulated PostScript Interchange
        
EPSIG
        Electronic Publishing Special Interest Group (org.)
        
ER
        Externer Rechner (T-Online)
        
ERCIM
        European Research Consortium for Information and Mathematics (org., GMD, INRIA, CWI, RAL, ..., Europe)
        
ERD
        Entity-Relationship Diagram
        
ERIN
        Environmental Resources Information Network (Australia, network)
        
ERM
        Enterprise Resource Management
        
ERM
        Entity Relationship Model (DB)
        
ERO
        European Radiocommunications Office (org., Europe, CEPT)
        
EROM
        Erasable Read Only Memory (ROM, IC)
        
ERP
        Enterprise Resource Planning [software]
        
ERS
        Enterprise Resource Sharing (ENS, Banyan, VINES)
        
ERS
        Error Report Suppression [flag] (CATNIP)
        
ES
        End System (ATM)
        
ES
        Errored Seconds (DS1/E1)
        
ES
        Extended Services (OS/2)
        
ES
        Extra Segment [register] (CPU, Intel, assembler)
        
ES1
        EliteSwitch/1 (SMC, FDDI), "ES/1"
        
ESA
        Enterprise Systems Architecture (IBM, MVS/XA, VM, CMS)
        
ESANN
        European Symposium on Artificial Neural Networks (conference, NN)
        
ESAXA
        Enterprise Systems Architecture / eXtended Architecture (IBM, ESA, XC), "ESA/XA"
        
ESAXC
        Enterprise Systems Architecture / eXtended Configuration (IBM, ESA, XA), "ESA/XC"
        
ESCD
        Extended System Configuration Data (BIOS, PNP)
        
ESCON
        Enterprise Systems CONnect (IBM)
        
ESCP2
        Epson Specific Code / Protocol 2 (Drucker), "ESC/P2"
        
ESD
        Electronic Software Distribution
        
ESD
        ElectroStatic Discharge
        
ESDC
        Extra Segment Descriptor Cache [register] (ES, Intel, CPU)
        
ESDI
        Enhanced Standard Device Interface
        
ESDS
        Entry Sequenced Data Set (VSAM)
        
ESE
        Extensible Storage Engine (AD, MS)
        
ESEC
        European Software Engineering Conference (GI, BCS, AFCET, AICA, OeGI, SI, conference)
        
ESER
        Einheitliches System dEr Rechentechnik (GDR)
        
ESF
        Extended Super Frame (ISDN, T1)
        
ESI
        End System IDentifier (ATM)
        
ESIOP
        Environment Specific Inter-ORB Protocol (OMG, CORBA, ORB, DCE)
        
ESIS
        Element Structure Information Set (SGML)
        
ESIS
        End System to Intermediate System [protocol / routing] (OSI), "ES-IS"
        
ESM
        External Storage Module (Sun)
        
ESMD
        Embedded Storage Module Disk
        
ESMD
        Enhanced Storage Module Device
        
ESMTP
        Extended Simple Message Transport Protocol (SMTP, RFC 1425/1869)
        
ESN
        Electronic Serial Number
        
ESN
        Electronic Switched Network
        
ESNET
        Energy Sciences NETwork (network, USA, Internet)
        
ESORICS
        European Symposium On Research In Computer Security (conference)
        
ESP
        [IP] Encapsulating Security Payload (IPSEC, IP, RFC 1825/1827, VPN)
        
ESP
        EFI System Partition (EFI)
        
ESP
        Emulation Sensing Processor (QMS)
        
ESP
        Ethernet Serial Port (ethernet)
        
ESP
        Extreme Support through Personalization (IBM)
        
ESPCM
        Electronic Speech systems Pulse Code Modulation (PCM)
        
ESPRIT
        European Strategic Program of Research and Development in Information Technology (Europe)
        
ESR
        Event Service Routine (IPX)
        
ESS
        Extended Service Set (WLAN)
        
ESSI
        European Software and Systems Initiative
        
EST
        Eastern Standard Time [-0500] (TZ, EDT, USA)
        
ESTO
        Electronic Systems Technology Office (org., ARPA)
        
ETAI
        Electronic Transactions on Artificial Intelligence (AI)
        
ETANN
        Electrically Trainable Analog Neural Network (NN)
        
ETAS
        Elektronisches Teile-AuskunftsSystem (MBAG)
        
ETB
        Elektronisches TelefonBuch (T-Online)
        
ETB
        End of Transmission Blank / Block
        
ETC
        European Test Conference (VDE, IEEE-CS, conference)
        
ETE
        End-To-End
        
ETG
        Enterprise Transaction Gateway (EDI, NT)
        
ETH
        Eidgenoessische Technische Hochschule
        
ETHZ
        Eidgenoessische Technische Hochschule Zuerich (org., Switzerland)
        
ETK
        Embedded ToolKit [for Windows CE] (MS, Windows, CE)
        
ETL
        Extraction, Transformation and Loading
        
ETLA
        Extended Three Letter Acronym
        
ETO
        Essentials - Tools - Objects (Apple), "E.T.O."
        
ETR
        Early Token Release (Token Ring)
        
ETS
        Embedded ToolSuite (Phar Lap)
        
ETS
        European Telecommunication Standard (ETSI)
        
ETS
        Executable Test Suite (ISO 9646-1)
        
ETSI
        European Telecommunication Standards Institute (org., Europe, ETSI)
        
ETX
        End of Transmission teXt
        
EU
        Execution Unit (CPU)
        
EUC
        Extended Unix Code (Unix, AT&T)
        
EUNET
        European Unix NETwork (network, Internet, ISP, Unix)
        
EUS
        EntscheidungsUnterstuetzende Systeme
        
EUSIDIC
        ??? [European Association of Information Services] (org., Europe)
        
EUSUVP
        EntscheidungsUnterstuetzendes System UmweltVertraeglichkeitsPruefung (EuropeS, XPS, Uni Hamburg, Germany)
        
EUUG
        European Unix User Group (org., user group, Unix, Europe)
        
EV
        EtagenVerteiler (cable, EN 50 173)
        
EVC
        Enhanced Video Connector (VESA)
        
EVE
        Extended Virtual Environment
        
EVN
        EinzelVerbindungsNachweis (Telekom)
        
EWAS
        Elektronisches WareneingangsAbwicklungsSystem (MBAG)
        
EWIKO
        [verein zur foerderung] Elektronischer WIssenschaftsKOmmunikation (org.)
        
EWOS
        European Workshop for Open Systems (OSI, ODA)
        
EWS
        Employee Written Software (IBM)
        
EWS
        European Workshop on SGML (org., SGML)
        
EXCA
        EXchangeable Card Architecture, "ExCA"
        
EXFCB
        EXtended File Control Block
        
EXTRA
        EXecutionTRace Analyser (IBM, OS/2)
        
EXUG
        European X Users Group (org., user group, Europe)
        
EXZ
        EXcessive Zeros [error event] (DS1/E1, DS3/E3)
        
EZ
        EchtZeit (fair)
        

        
        









        

F2C
        FORTRAN to C [converter]
        
F2F
        Frequency - Double Frequency
        
FA
        FernmeldeAmt (Telekom)
        
FAA
        Flow Admission Acknowledge [message] (LFAP)
        
FABS
        Fast Access Btree Structure
        
FAC
        Final Assembly Code (IMEI, GSM, mobile-systems)
        
FACCH
        Fast Associated Control CHannel (GSM, DCCH, mobile-systems)
        
FACE
        Framed Access Command Environment (Unix, SVR4)
        
FACS
        Firmware ACPI Control Structure (ACPI)
        
FADOS
        Fast Amsterdam Distributed (???) Operating System (OS, FAMP)
        
FADT
        Fixed ACPI Description Table (ACPI)
        
FADU
        File Access Data Unit (FTAM)
        
FAE
        Field Application Engineer
        
FAG
        FernmeldeAnlagenGesetz DFUe, Germany
        
FAIS
        Finnish Artificial Intelligence Society (org., Finland, AI)
        
FAL
        File Access Listener (DEC, DNA)
        
FAME
        FORMEX Applied to Multilingualism in Europe (SGML, Europe)
        
FAMOS
        Floating gate Avalanche injection Metal Oxide Semiconductor (IC)
        
FAMP
        Fast Amsterdam MultiProcessor
        
FANP
        Flow Attribute Notification Protocol (Toshiba, RFC 2129)
        
FAPI
        Family Application Programmer Interface (DOS, VDM, API)
        
FAQ
        Frequently Asked Questions (slang, Usenet)
        
FAR
        False Acception Rate
        
FAR
        Fixed Alternative Routing (SNI)
        
FAR
        Flow Admission Request [message] (LFAP)
        
FARNET
        Federation of American Research NETworks (network)
        
FAS
        Flow Admission Service
        
FASMI
        Fast Analysis of Shared Multidimensional Information (OLAP)
        
FAST
        First Application System Test
        
FAST
        Forschungsinstitut fuer Angewandte Software-Technologie [e.v.] (org.)
        
FAT
        File Allocation Table (DOS)
        
FAU
        Flow Admission Update [message] (LFAP)
        
FAU
        Friedrich-Alexander-Universitaet (org., Erlangen, Germany, Nuernberg, Germany)
        
FAW
        Forschungsinstitut fuer Anwendungsorientierte Wissensverarbeitung (org., KI, Ulm)
        
FB
        Fiber optic Backbone
        
FBAS
        FarbBild-AustastSystem / Farb-Bild-Austast-Synchron-signal (video)
        
FBL
        Frame Burst error Length (CD)
        
FBM
        Flexible Buffer Management (QMS)
        
FBS
        Flexible Bandwidth Service (ATM, SDH)
        
FC
        Federal Criteria [for information technology security] (NIST, USA)
        
FC
        Feedback Control
        
FC
        Fibre Channel
        
FC
        Frame Control (FDDI, Token Ring)
        
FCA
        Flow Control Ack (DLSW)
        
FCAL
        Fibre Channel - Arbitrated Loop, "FC-AL" 
        
FCAPS
        Fault, Configuration, Accounting, Performance, Security [management areas]
        
FCB
        File Control Block (DOS)
        
FCBS
        File Control BlockS (DOS)
        
FCC
        Federal Communications Commission (org., USA)
        
FCC
        Forward Carbon Copy (DFUe)
        
FCCH
        Frequency Correction CHannel (GSM, mobile-systems)
        
FCCN
        Fundacao para a Computacao Cientifica Nacional (org., Portugal)
        
FCD
        Floating Car Data
        
FCFS
        First Come, First Served
        
FCI
        Fibre Channel Interface
        
FCI
        Flow Control Indicator (DLSW)
        
FCI
        Forward Cache Identifier (CATNIP)
        
FCO
        Flow Control Operator Bits (DLSW)
        
FCP
        [SCSI-3] Fibre Channel Protocol (SAM)
        
FCPGA
        Flip Chip Pin Grid Array (CPU), "FC-PGA"
        
FCPH
        Fibre Channel PHysical and signaling interface (SAM), "FC-PH"
        
FCR
        Flow Change Request [message] (LFAP)
        
FCS
        Fast Circuit Switching
        
FCS
        First Customer Ship (IBM)
        
FCS
        Frame Check Sequence (FDDI, Token Ring)
        
FCS
        Frame Check Sum (MODEM)
        
FDA
        FORTRAN Design Aid (FORTRAN)
        
FDAD
        Functional Data ADministrator
        
FDC
        Floppy Disk Controller (FDD)
        
FDCT
        Fast Discrete Cosine Transformation (DCT)
        
FDD
        Floppy Disk Drive
        
FDDI
        Fiber Distributed Data Interface (ANSI, ISO 8314)
        
FDDITPPMD
        FDDI Twisted Pair-Physical layer, Medium Dependent, "FDDI TP-PMD" 
        
FDE
        Full Duplex Ethernet (ethernet)
        
FDES
        Full Duplex EtherSwitch (Kalpana)
        
FDI
        [fachverband der ] Fuehrungskraefte der Druckindustrie und Informationsverarbeitung (org.)
        
FDL
        File Definition Language
        
FDL
        Free Documentation License (GNU)
        
FDM
        Frequency Division Multiplexing (FDM)
        
FDMA
        Frequency Division Multiple Access (mobile-systems)
        
FDO
        Functional Device Object
        
FDT
        Formal Description Technique
        
FDX
        Full DupleX
        
FE
        Forschung und Entwicklung, "F&E"
        
FE
        Functional Entity (IN)
        
FEA
        Functional Entity Action (IN, UNI)
        
FEAL
        Fast Data Encipherment Algorithm (DES, cryptography)
        
FEAST
        Fast Data Enciphering Algorithm (cryptography)
        
FEBE
        Far End Block Error (SONET)
        
FEC
        Forward Error Correction (GSM, mobile-systems)
        
FECN
        Forward Explicit Congestion Notification (ATM)
        
FEFCO
        ???
        
FEIT
        Fujitsu Enhanced Imaging Technology (Fujitsu)
        
FEK
        File Encryption Key (cryptography)
        
FEM
        Finite Elemente Methode
        
FEN
        Free-net Erlangen/Nuernberg
        
FEP
        Front End Processor
        
FER
        Forward Error Correction (satellite)
        
FERF
        Far End Receive Failure (UNI, ATM, SONET, OAM)
        
FESI
        Federacion Espanola de Sociedades de Informatica (org., Spain)
        
FET
        Field Effect Transistor
        
FF
        Form(ular) Feed
        
FFAPI
        File Format API (MS, API)
        
FFC
        Fully Formed Character [printer]
        
FFDC
        First Failure Data Capture
        
FFDT
        FDDI Full Duplexing Technology (FDDI)
        
FFOL
        FDDI Follow-On-LAN
        
FFS
        Fallback Fault-tolerant Server (IBM, OS/2)
        
FFS
        Fast File System (Amiga, Commodore)
        
FFS
        Fast Filing System (BSD, Unix)
        
FFS
        Flexible Fertigungs-Systeme
        
FFST2
        First Failure Support Technology /2 (IBM), "FFST/2"
        
FFT
        Final Form Text
        
FGA
        Future Graphics Adapter (Spea)
        
FGCS
        Fifth Generation Computer Systems [project] (ICOT)
        
FGREP
        Fixed Global Regular Expression Print (Unix, GREP)
        
FHGS
        FreeHand Graphics Studio (Macromedia, DTP)
        
FHSS
        Frequency Hopping Spread Spectrum (WLAN)
        
FIA
        Fiberoptic Industry Association (org.)
        
FIBU
        FInanzBUchhaltung
        
FIC
        First International Computer [inc.] (manufacturer)
        
FID
        File IDentifier (APDU)
        
FID
        File Identifier Descriptor (UDF, CD-R)
        
FIDO
        FIlter Device Object, "FiDO"
        
FIF
        Fractal Interchange Format
        
FIFF
        Forum Informatikerinnen Fuer den Frieden (org.)
        
FIFO
        First In First Out (CPU)
        
FIG
        Forth Interest Group (org., Forth)
        
FIGLET
        Frank, Ian and Glenn's LETters (ASCII, fonts)
        
FILE
        Free Internet Lexicon and Encyclopedia (WWW, DICT)
        
FILO
        First In Last Out
        
FIMAS
        Financial Institution Message Authentication Standard (banking, ANSI)
        
FIOC
        Frame Input/Output Controller
        
FIP
        Facility Interface Processor
        
FIP
        Factory Instrumentation Protocol
        
FIP
        Fluorescent Indicator Panel
        
FIPA
        Foundation for Intelligent Physical Agents (org., Agents)
        
FIPS
        Federal Information Processing Standard (NIST, USA)
        
FIR
        Fast IRDA (IRDA)
        
FIR
        Finite Impulse Response (DSP)
        
FIRE
        Flexible Intelligent Routing Engine (3Com)
        
FIRMR
        Federal Information Resources Management Regulations (USA)
        
FIRP
        Federal Internet Requirements Panel (Internet, USA)
        
FIRST
        ForschungsInstitut fuer Rechnerarchitektur und SoftwareTechnik (org., GMD, Berlin, Germany)
        
FIRST
        Forum of Incident Response and SecuriTy (org., NIST)
        
FIS
        FachInformationsSystem
        
FIS
        FuehrungsInformationsSysteme
        
FIT
        Failures In Time
        
FITS
        Functional Interpolating Transformation System
        
FIU
        Fingerprint Identification Unit (Sony)
        
FIZ
        FachInformationsZentrum karlsruhe Org., Germany
        
FK
        Foundation Kit (NextStep, OpenStep, Apple, Rhapsody)
        
FKS
        Fernmelde-Klein-Steckverbindung (Westernstecker)
        
FL
        Fiber optic Link
        
FLACC
        Full Level Algol Checkout Compiler
        
FLAME
        FLexible API for Module-based Environments (RL, API)
        
FLC
        Ferroelectric Liquid Crystal
        
FLEA
        Four Letter Extended Acronym
        
FLEXIP
        FLEXible Internet Protocol (Novell, Netware), "FLeX/IP"
        
FLIM
        Faithful Library about Internet Message (EMACS, GNU)
        
FLOPS
        FLoating-point Operations Per Second (CPU)
        
FLP
        Fast Link Pulse (ethernet, LAN, NLP)
        
FLS
        ???
        
FM
        Frequenz-Modulation
        
FMA
        Federated Management Architecture (Java)
        
FMM
        Flash Memory Manager (Intel)
        
FMS
        FernMeldeSystem
        
FMS
        FORTRAN Monitor System (OS, IBM 709)
        
FMTEYEWTK
        Far More Than Everything You Ever Wanted To Know (slang, PERL)
        
FNC
        Federal Networking Council (org., USA)
        
FO
        Fiber Optic
        
FOA
        Fiber Optic Association (org.)
        
FOC
        Fiber Optic Cable / Communications
        
FOCS
        [symposium on] Foundations Of Computer Science (conference)
        
FOD
        Flexible Optical Disk (OD)
        
FODA
        Formal specification of ODA document structures (ODA, ISO)
        
FODO
        [international conference on] Foundations Of Data Organization and algorithms (conference, INRIA)
        
FOEBUD
        [verein zur] Foerderung des OEffentlichen Bewegten und Unbewegten Datenverkehrs [e.v.] (org.), "FoeBud"
        
FOIRL
        Fiber Optic InterRepeater Link (OWG)
        
FOKUS
        Forschungszentrum fuer Offene KommUnikationsSysteme (org., GMD, Berlin, Germany)
        
FOLDOC
        Free OnLine Dictionary Of Computing (WWW, UK)
        
FOLED
        Flexible Organic Light Emitting Display (OLED)
        
FOMAU
        Fiber Optic MAU (ethernet)
        
FON
        Fiber Optics Network
        
FOOBAR
        FTP Operation Over Big Address Records (RFC 1639, FTP)
        
FOOT
        Forum for Object Oriented Technology (CERN, OOP)
        
FORMEX
        FORMalised EXchange of electronic publications (SGML, Europe)
        
FORML
        Formal Object Role Modelling Language
        
FORTRAN
        FORmula TRANslation
        
FORTWIHR
        FORschungsverbund fuer Technisch-WIssenschaftliches HochleistungsRechnen (org., Bavaria)
        
FORWISS
        bayerisches FORschungszentrum fuer WISsensbasierte Systeme (org., KI)
        
FOSI
        Format Output Specification Instance (SGML, CALS)
        
FOSSIL
        Fido Opus Seadog Standard Interface Layer
        
FOT
        Fiber Optic Transceiver
        
FOTE
        Follow-on Operational Test and Evaluation, "FOT & E"
        
FOURCC
        FOUR Character Code (RIFF, TIFF)
        
FOV
        Field Of View (VRML)
        
FOX
        Field Operational X.500
        
FPA
        Fast Packet Adaption (FPS, FPR)
        
FPA
        Floating Point Accelerator
        
FPAA
        Field Programmable ALU Array (IC, ALU, RL)
        
FPC
        Floating Point Coprocessor
        
FPDI
        Flat Panel Display Interface (VESA)
        
FPDU
        FTAM Protocol Data Unit (PDU)
        
FPE
        Floating Point Engine
        
FPGA
        Field Programmable Gate Array (RL)
        
FPI
        Flux Changes per Inch (HDD)
        
FPI
        Formal Public Identifier (DTD, SGML)
        
FPI
        Functional Process Improvement
        
FPLA
        Field Programmable Logic Array
        
FPLMTS
        Future Public Land Mobile Telecommunications System (IN, mobile-systems)
        
FPM
        Fast Page Mode [DRAM] (RAM, DRAM)
        
FPM
        Fast Page Mode [ram] (RAM, DRAM, IC)
        
FPMDRAM
        Fast Page Mode DRAM (RAM, DRAM, IC), "FPM-DRAM"
        
FPMPMI
        Flat Panel Monitor Physical Mounting Interface [standard] (LCD, VESA)
        
FPNW
        File and Print service for NetWare (MS, Windows NT, DSMN)
        
FPODA
        Fixed Priority Orientated Demand Assignment (MAC, PODA)
        
FPP
        Fast-Parallel-Port
        
FPP
        Floating Point Processor
        
FPP
        FORTRAN Pre-Processor (FORTRAN)
        
FPR
        Fast Packet Relay (FPS, FPA)
        
FPR
        Floating Point Register (FPU)
        
FPS
        Fast Packet Switching (X.25, Datex-J)
        
FPS
        Frames Per Second
        
FPU
        Floating Point Unit (CPU)
        
FQDN
        Fully Qualified DOMAIN Name (Internet)
        
FRAD
        Frame Relay Access Device
        
FRAM
        Ferroelectric Random Access Memory (RAM, IC)
        
FRD
        Functional Requirements Description
        
FRF
        Floatingpoint Register File (DEC, Alpha, CPU)
        
FRICC
        Federal Research Internet Coordinating Committee (org.)
        
FRL
        Frame Representation Language (AI)
        
FRMR
        FRaMe Reject (HDLC, LAPB, SDLC)
        
FROM
        Factory Read Only Memory (ROM)
        
FRR
        False Rejection Rate
        
FRR
        Functional Recovery Routine
        
FRS
        Flexible Route Selection
        
FRS
        Frame Relay Service (ATM, UNI)
        
FS
        File System (LVM)
        
FS
        Frame Status (FDDI, Token Ring)
        
FSAG
        Free Software Association of Germany (org.)
        
FSB
        For Small Business (Novell)
        
FSB
        Front Side Bus
        
FSC
        Fujitsu Siemens Computer (manufacturer)
        
FSCK
        File System Consistency checK (Unix)
        
FSD
        File System Driver
        
FSF
        Free Software Foundation (org., GNU)
        
FSH
        File System Hierarchy (Linux, LSB)
        
FSIP
        Full Scale InPut (FSOP)
        
FSK
        Frequency Shift Keying (DFUe)
        
FSM
        Finite State Machine (TTCN, ...)
        
FSM
        Freiwillige Selbstkontrolle Multimedia Org., Germany
        
FSMGDOS
        ??? Graphics Device Operating System (OS, Atari)
        
FSO
        [scripting runtime library] File System Objects (MS, WSH)
        
FSOP
        Full Scale OutPut (FSIP)
        
FSOS
        Free Standing Operating System (OS)
        
FSP
        File Slurping Protocol
        
FSRTL
        File System RunTime Library
        
FSS
        Fast System Switch (Unix)
        
FSSUTF
        FileSystem Safe UCS Transformation Format (UCS, Unicode), "FSS-UTF"
        
FST
        Flat Square Technology (Hitachi)
        
FSTN
        Film SuperTwisted Nematic (LCD)
        
FSTP
        Foiled Shielded Twisted Pair [cable] (STP, TP), "F/STP"
        
FSU
        Free Software Union (org.)
        
FT1
        Fractional T1 (ISDN, T1, DS-0, DS-1)
        
FTA
        Floptical Technology Association (3M u.a.)
        
FTAM
        File Transfer, Access  and Management (GOSIP, ISO 8571/8572)
        
FTC
        Federal Trade Commission (org., USA)
        
FTE
        [DCOM] For The Enterprise (DCOM, SAG)
        
FTN
        Fido Technology Network (FidoNet)
        
FTNA
        File Transfer Access and Management
        
FTNEA
        File Transfer NEtwork Architecure (SNI)
        
FTOS
        File Transfer Open Systems
        
FTOS
        File Transfer OSI Support
        
FTP
        File Transfer Protocol (Internet, RFC 959)
        
FTP
        Foiled Twisted Pair [cable] (UTP, TP)
        
FTPD
        File Transfer Protocol DAEMON (FTP)
        
FTR
        Full Text Retrieval
        
FTS
        Fidonet Technical Standard
        
FTS2000
        Federal Telecommunications Services - 2000 (USA), "FTS-2000"
        
FTSC
        Federal Telecommunications Standards Committee (org., USA)
        
FTSC
        Fidonet Technical Standard Conference (conference)
        
FTZ
        FernmeldeTechnische Zentralamt / Zulassung (Telekom, ZZF, predecessor)
        
FUA
        Flow Update Acknowledge [message] (LFAP)
        
FUB
        Freie Universitaet Berlin (org.)
        
FUBAB
        Fouled / Fucked Up Beyond All Belief (slang, Usenet, IRC)
        
FUBAR
        Fouled / Fucked Up Beyond All Recognition / Repair (slang, Usenet, IRC)
        
FUD
        Fear, Uncertainty, & Doubt (slang, IBM)
        
FUN
        Flow Update Notification [message] (LFAP)
        
FUNI
        Frame User Network Interface
        
        FUeV          Fernmeldeanlagen-UeberwachungsVerordnung
        
FWH
        FirmWare Hub (BIOS, Intel)
        
FWIW
        For What It's Worth (slang, Usenet, IRC)
        
FWT
        Fast Wavelet Transformation
        
FXU
        FiXed point Unit (POWER, CPU)
        
FYI
        For Your Information (slang, Usenet, IRC)
        
FZA
        ??? [compression]
        
FZI
        ForschungsZentrum Informatik (org., Uni Karlsruhe, Germany)
        

        
        









        

GA
        General Availability (OS/2)
        
GA
        Genetic Algorithm(s)
        
GABELN
        Gruppe Area Brett Echo Liste Newsgroup (slang, Usenet, BBS)
        
GABRIEL
        GAteway and BRIdge to Europe's national Libraries
        
GAC
        Government Advisory Council (ICANN)
        
GADK
        Global Application Developers Kit (Sun)
        
GAE
        Generic Application Environment
        
GAEB
        Gemeinsamer Ausschuss fuer Elektronik im Bauwesen (org.)
        
GAFCON
        German AirForce Communication Network Mil., Germany, Netzwerk
        
GAFDIN
        German AirForce Digital Network Mil., Germany, Netzwerk
        
GAIA
        GUI Application Interoperability Architecture (OSF)
        
GAIN
        German Advanced Integrated Network (IBM)
        
GAK
        Governmental Accessed Keys (cryptography)
        
GAL
        Generic Array celL / Logic
        
GAN
        Global Area Network
        
GAN
        GrenzAktenNachweis (INPOL)
        
GAP
        Generic Access Profile (DECT, Europe)
        
GAP
        Generic Address Parameter
        
GART
        Graphics Address Remapping Table (AGP)
        
GASH
        Group Admin SHell (Unix, Shell)
        
GATOR
        GATeway OrientierungsRatgeber (Internet)
        
GAWK
        GNU AWK (GNU, AWK)
        
GB
        GigaByte
        
GB
        GuoBao [codepage]
        
GBIP
        General Purpose Interface Bus
        
GBPS
        GigaBits Per Second
        
GC
        Global Catalog (MS, AD)
        
GCA
        General Communications Architecture (Ingres)
        
GCAD
        Geographical Computer Aided Design System
        
GCATT
        Georgia Center for Advanced Telecommunications Technology (org., USA)
        
GCC
        GNU C Compiler (GNU)
        
GCCS
        Global Command and Control System (DISA, mil.)
        
GCID
        Global Call IDentifier
        
GCIDIE
        Global Call IDentifier- Information Element (GCID), "GCID-IE"
        
GCL
        GNU Common LISP (GNU, LISP)
        
GCL
        Graphics Command Language
        
GCOS
        General Comprehensive Operating System (Honeywell, OS, Honeywell Series 60, Honeywell Series 6000)
        
GCR
        Gray Component Replacement (RGB, CYMK, DTP)
        
GCR
        Group Coded Recording
        
GCRA
        Generic Cell Rate Algorithm (UNI, ATM)
        
GCS
        Greek Computer Society (org., Griechenland)
        
GCS
        Group Control System (IBM, VM, VME, VM/ESA)
        
GDA
        Global Directory Agent (DCE)
        
GDAP
        Government Document Application Profile
        
GDB
        GNU DeBugger (GNU)
        
GDBM
        GNU Data Base Manager (DB, GNU)
        
GDD
        Gesellschaft fuer Datenschutz und Datensicherung (org.)
        
GDDM
        Graphical Data Display Manager (IBM)
        
GDI
        Graphical Device / Display Interface
        
GDMI
        Generic Definition of Management Information
        
GDMO
        Guidelines for the Definition of Managed Objects (OSI)
        
GDOS
        Graphics Device Operating System (OS, Atari)
        
GDOUG
        Greater Detroit OS/2 User Group (org., user group, OS/2, USA)
        
GDPDU
        Grundsaetze zum Datenzugriff und zur Pruefbarkeit Digitaler Unterlagen (BMF), "GDPdU"
        
GDROM
        ??? Read Only Memory (Sega, ROM), "GD-ROM"
        
GDS
        Generalized Data Stream (IBM, APPC)
        
GDS
        Global Directory Service (DCE)
        
GDT
        Global Descriptor Table
        
GDTRC
        Global Descriptor Table Register Cache (GDT, Intel, CPU)
        
GE
        General Electric (manufacturer, GE)
        
GECOS
        General Electric Comprehensive Operating Supervisor / System (OS, GE, GCOS, predecessor, Honeywell)
        
GEI
        Gesellschaft fuer Elektronische Informationsverarbeitung [mbh] (manufacturer, Aachen)
        
GEIST
        German Encyclopedic Internet Service Terminal (org.)
        
GEM
        Generalized Executive for realtime Multiprocessor applications (OS)
        
GEM
        Graphics Environment Manager (DR, PC)
        
GENIE
        General Electric Network for Information Exchange (network, GE)
        
GEOS
        Graphic Environment Operating System (OS)
        
GERAN
        GSM EDGE Radio Access Network (GSM, EDGE, mobile-systems)
        
GESIP
        GESellschaft fuer Informatik in der Pharmazie [e.v.] (org.)
        
GETS
        Government Emergency Telecommunications System (USA)
        
GFC
        Generic Flow Control (ATM)
        
GFC
        Going For Coffee (slang, Usenet, IRC)
        
GFDL
        GNU Free Documentation License (GNU)
        
GFLOPS
        Giga FLoating-point Operations Per Second (CPU)
        
GFP
        Global Functional Plane (IN)
        
GFS
        ??? File System
        
GFSK
        Gaussian Frequency Shift Keying (DFUe)
        
GGI
        General Graphics Interface
        
GGP
        Gateway to Gateway Protocol (RFC 823)
        
GGS
        GueteGemeinschaft Software [e.v.] (org.)
        
GGSN
        Gateway GPRS Support Node (GPRS, mobile-systems)
        
GHOST
        Goal Hierarchy and Objectives Structuring Technique (TUB)
        
GHTSTN
        Guest Host Technique SuperTwisted Nematic (LCD), "GHT-STN" 
        
GI
        Gesellschaft fuer Informatik (org.)
        
GID
        Group ID
        
GIDAS
        Grafisch-Interaktives DatenAnalyseSystem
        
GIDEI
        General Input Device Emulation Interface
        
GIDO
        General Intrusion Detection Object (CIDF)
        
GIGO
        Garbage In Garbage Out
        
GII
        General Input Interface
        
GIL
        Gesellschaft fuer Informatik in der Land-, forst- und ernaehrungswirtschaft [e.v.] (org.)
        
GIM
        Gesellschaft fuer informationstechnik und InformationsManagement [mbh] (ISC, Bremen)
        
GIMP
        General / GNU Image Manipulation Program (Linux, Graphik, GNU)
        
GINA
        Generische INteraktive Anwendung (GMD)
        
GINA
        Graphic Identification and Authentication
        
GIOP
        General Inter-ORB Protocol (OMG, CORBA, ORB, IIOP)
        
GIPS
        Giga Instructions Per Second (CPU)
        
GIRL
        Generalized Information Retrieval Language
        
GIS
        Geographic Information System
        
GIT
        GNU Interactive Tools (GNU)
        
GITS
        Government Information Technology Service (USA)
        
GJSP
        GNU Java Server Pages (GNU, Java, JSP)
        
GKDC
        Group Key Distribution Centre (KDC, CBT)
        
GKMP
        Group Key Management Protocol
        
GKS
        Graphic Kernel System
        
GLDV
        Gesellschaft fuer Linguistische DatenVerarbeitung (org.)
        
GLGPL
        GNU Lesser General Public License (GNU)
        
GLM
        Generalized Markup Language
        
GLOCOM
        [center for] GLObal COMmunications (org., Japan)
        
GLU
        openGL Utility Library (OpenGL, GLU)
        
GLUT
        openGL Utility library Toolkit (OpenGL, GLU)
        
GM
        General MIDI [standard] (MIDI)
        
GMA
        Gesellschaft fuer Mess- und Automatisierungstechnik (org., VDI)
        
GMCH
        Graphics and Memory Controller Hub (Intel, ICH)
        
GMD
        Gesellschaft fuer Mathematik und Datenverarbeitung (org., St. Augustin)
        
GMDS
        deutsche Gesellschaft fuer Medizinische Dokumentation, informatik und Statistik [e.v.] (org.)
        
GME
        Gesellschaft MikroElektronik (org., VDE, VDI)
        
GMI
        Generic Management Information (OSI)
        
GML
        General Markup Language
        
        GMOeOR        Gesellschaft ??? (org.)
        
GMP
        GNU Multi-Precision [library] (GNU)
        
GMR
        Giant Magneto-Resistive [heads] (HDD, IBM, Toshiba)
        
GMSK
        Gaussian Minimum Shift Keying
        
GMT
        Greenwich Mean Time [+0000] (TZ, UTC, UK)
        
GNA
        Global Network Academy (Internet)
        
GNAT
        GNU Ada Translator (GNU)
        
GNI
        GayNet International (network)
        
GNMP
        Government Network Management Profile (USA)
        
GNN
        Global Network Navigator (Internet, WWW)
        
GNOME
        GNU Network Object Model Environment (GNU)
        
GNU
        GNU's Not Unix (rekursiv!, Unix, GNU, OS)
        
GNUPG
        GNU Privacy Guard (GNU, cryptography), "GnuPG"
        
GNX400
        Gateway Network eXchange 400 (Proteon, SNA, SDLC), "GNX 400"
        
GOCA
        Graphic Object Content Architecture (IBM, MO:DCA)
        
GOD
        Global OutDial
        
GOD
        Grundsaetze ordnungsmaessiger Datenverarbeitung, "GoD" 
        
GOP
        Group Of Pictures (video)
        
GOPS
        Giga Operations Per Second
        
GOSIP
        Government Open Systems Interconnections Profile (USA, UK)
        
GPA
        GNU Privacy Assistant (GNU, GnuPG)
        
GPC
        General-Purpose Computation
        
GPC
        GNU Pascal Compiler (GNU)
        
GPC
        Graphics Performance Characterization [committee] (org., HP, IBM, DEC, SGI, Sun,...)
        
GPC
        Group Policy Container (AD, GPO)
        
GPCI
        Graphics Processor Command Interface
        
GPF
        General Protection Fault (Windows)
        
GPG
        GNU Privacy Guard (GNU)
        
GPI
        Graphics Programming Interface
        
GPIB
        General-Purpose Interface Bus (IEEE 488, GPIB)
        
GPIO
        General Purpose Input Output
        
GPL
        General Public Licence (GNU)
        
GPL
        Graphics Programming Language
        
GPM
        Gesellschaft fuer ProjektManagement [e.v.] (org.)
        
GPO
        Group Policy Objects (AD, GPO)
        
GPP
        [SCSI-3] Generic Packetized Protocol (SAM)
        
GPR
        General Purpose Register (CPU)
        
GPRS
        General Packet Radio Service / System (ETSI, GSM, TCP/IP, GPRS, mobile-systems)
        
GPS
        Global Positioning System
        
GPSI
        Graphics Processor Software Interface
        
GPT
        Group Policy Template (AD, GPO)
        
GPT
        GUID Partition Table (EFI, GUID)
        
GPU
        Graphics Processing Unit
        
GPV
        General Public Virus
        
GRADD
        GRaphics Adapter Device Driver (OS/2, IBM)
        
GRASP
        Graphic Animation System for Professionals
        
GRC
        Generic Reference Configuration
        
GRE
        Generic Routing Encapsulation (RFC 1701, VPN)
        
GREP
        Global Regular Expression Print (Unix)
        
GRIC
        Global Research Internet Connection (org., ISP)
        
GRINS
        GRaphical iNterface to SMIL (SMIL, Oratix), "GRiNS"
        
GRPS
        General Packet Radio Service (GSM, mobile-systems)
        
GRUB
        GRand Unified Bootloader (GNU)
        
GS
        General Standard (MIDI)
        
GS
        Gepruefte Sicherheit
        
GSDK
        Game Software Development Kit (Linux, GGI, OpenGL)
        
GSDS
        Genealogy Software Distribution System
        
GSL
        Graphics Software Labs (AT&T)
        
GSM
        Global System for Mobile communications
        
GSM
        Groupe Speciale Mobile (org. , CEPT)
        
GSMP
        General Switch Management Protocol (DEC, Sprint)
        
GSNW
        Gateway Service for NetWare (MS, Windows NT)
        
GSP
        GNU Server Pages (GNU, Java, JSP)
        
GSS
        Generic Security Service (IETF, GSS-API)
        
GSS
        Group Support System
        
GSSAPI
        Generic Security Service API (RFC 2078, API), "GSS-API"
        
GST
        Guam Standard Time [+1000] (TZ)
        
GSX
        Graphics System eXtension
        
GTDM
        Group Time Division Multiplexing [protocol]
        
GTF
        Generalized Timing Format (VESA)
        
GTK
        [GNU] GUI ToolKit (GNU, GUI)
        
GTL
        Gunning Tranceiver Logic+ [bus] (Intel, SMP), "GTL+"
        
GTLD
        Generic Top Level DOMAIN (Internet, ICANN), "gTLD"
        
GTP
        GPRS Tunnel Protocol (GPRS, mobile-systems)
        
GTS
        GigaTexel Shading
        
GUI
        Graphical User Interface (UI)
        
GUID
        Global[ly] Unique IDentifier (COM)
        
GUIDE
        Graphical User Interface Design Editor (Sun)
        
GUILE
        GNU's Ubiquitous Intelligent Language for Extension (GNU)
        
GUS
        Guide to the Use of Standards (SPAG)
        
GUUG
        German Unix User Group (org., user group, Unix)
        
GV
        GebaeudeVerteiler (cable, EN 50 173)
        
GVBA
        Global Village Business Association (org., USA)
        
GVV
        German Volunteer Votetakers (Usenet, DANA)
        
GWAI
        German Workshop on Artificial Intelligence (conference, AI)
        
GWBASIC
        Graphics and Windows Beginner's All-purpose Symbolic Instruction Code (BASIC, MS-DOS), "GW-Basic"
        
GWDG
        Gesellschaft fuer Wissenschaftliche Datenverarbeitung Goettingen [mbH] (org.)
        
GWS
        Gesellschaft fuer Wirtschafts- und Sozialkybernetik (org., Uni Marburg)
        
GWS
        Graphics WorkShop
        

        
        









        

H4P
        High Performance Parallel Processing Project (ICI)
        
HACL
        Host Access Class Library (HOD, API)
        
HACMP
        High Availability Clustered Multi Processing (IBM, RS/6000, Bull), "HA/CMP"
        
HAL
        Hard Array Logic
        
HAL
        Hardware Abstraction Layer (Windows NT)
        
HAL
        Heuristically programmed ALgorithmic computer (2001)
        
HALPC
        Houston Area League of PC-Users, "HAL-PC" 
        
HAMPS
        Host AUTODIN Message Processing System (AUTODIN, mil.)
        
HAND
        Have A Nice Day (slang, Usenet, IRC)
        
HANFS
        Highly Available Network File System
        
HAP
        Host Access Protocol (RFC 907/1221)
        
HAS
        High Availability Subsystem (Bull)
        
HAT
        Hashed Address Table
        
HAVI
        Home Audio Video Interoperability (org., Grundig, Hitachi, Matsushita, Philips, Sharp, Sony, Thomson, Toshiba)
        
HBA
        Host Bus Adapter (SCSI)
        
HBCI
        HomeBanking Computer Interface Internet, banking, Germany, HBCI
        
HBT
        Hetero Bipolar Transistor (IBM, IC)
        
HCI
        Human Computer Interaction (BCS, conference)
        
HCL
        Hardware Compatibility List (MS, Windows)
        
HCL
        Host Control Links
        
HCSDS
        High Capacity Satellite Digital Service
        
HCSS
        High Capacity Storage System (Novell, Netware)
        
HCT
        Hamburger ComputerTage (fair)
        
HCT
        High-speed CMOS [logic] with TTT-compatible [logic] levels (IC, MOS)
        
HCTDS
        High-Capacity Terrestrial Digital Service
        
HD
        High Density
        
HDAM
        Hierarchical Direct Access Method (DAM)
        
HDB
        HoneyDanBer [standard] (Unix)
        
HDB3
        High Density Bipolar 3
        
HDBMS
        Hierarchical DataBase Management System (DBMS, DB)
        
HDC
        Hard Disk Controller
        
HDCD
        High Density Compact Disk (CD, Sony, Phillips)
        
HDD
        Hard Disk Drive (HDD)
        
HDD
        Highly Doped Drain (IC, MOSFET)
        
HDF
        Hierarchical Data Format (NCSA)
        
HDH
        HDLC Distant Host
        
HDI
        HOOPS Device Interface (VAGI)
        
HDIT
        High Bandwidth Differential Interconnect Technology [bus] (VIA)
        
HDL
        Hardware Description Language (ASIC)
        
HDLC
        High-level Data Link Control (ISO)
        
HDM
        Hardware Device Module (I2O)
        
HDML
        Handheld Device Markup Language (mobile-systems, HDTP)
        
HDN
        Hochgeschwindigkeits-DatenNetz
        
HDOS
        Heath Disk Operating System (OS, Heath)
        
HDR
        High availability Data Replication (Informix, DB)
        
HDR
        High Dynamic Range
        
HDSL
        High data / bit rate Digital Subscriber Line (BELLCORE, AT&T, DSL)
        
HDSL
        High-level Data Specification Language
        
HDTP
        Handheld Device Transport Protocol (mobile-systems)
        
HDX
        Half DupleX
        
HE
        HoehenEinheit [1HE = 19"]
        
HEA
        Hyundai Electronics of America (manufacturer)
        
HEC
        Header Error Check
        
HEC
        Header Error Control (ATM)
        
HECTOR
        HEterogeneous Computer TOgetheR (IBM, Uni Karlsruhe, Germany)
        
HEL
        Hardware Emulation Layer
        
HEL
        Header Extension Length
        
HEMT
        High Electron Mobility Transistor
        
HEPNET
        High Energy Physics NETwork (network)
        
HERMES
        Heuristic Emergency Response Management Expert System (XPS)
        
HERODE
        Handling the Electronic Representation of mixed text - image Office Documents based on ECMA standard 101 (ESPRIT, SNI, TITN, ECMA, ODA)
        
HES
        Home Electronic System (SNI)
        
HES
        Honeywell Executive System (OS, Honeywell 800)
        
HF
        Have Fun (slang, Usenet, IRC)
        
HFC
        Hybrid Fiber Coax [network]
        
HFD
        Hauptanschluss fuer Direktruf / Datenleitung (Telekom), "HfD" 
        
HFDS
        Highly Functional Distributed System (MTRON)
        
HFS
        Hierachical File System (Apple, CD)
        
HFT
        High Function Terminal (AIX, IBM)
        
HGA
        Hercules Graphics Adapter
        
HGC
        Hercules Graphics Card
        
HHI
        Heinrich Hertz Institut Org., Germany
        
HI
        Hochschulverband Informationswissenschaften (org.)
        
HIC
        Human Interaction Component
        
HIC
        Hybrid Integrated Circuit
        
HID
        Human Interface Device (MS)
        
HIDAM
        Hierarchical Indexed Direct Access Method (DAM)
        
HIFD
        HIgh capacity Floppy Disk (Sony, Fuji), "HiFD"
        
HIFI
        Hypertext Interface For Information (ESPRIT)
        
HIFIVE
        HIgh Fidelity Interactive Visual Environment (DEC), "Hi-FIVE"
        
HIFT
        Hardware Implemented Fault Tolerance (SIFT)
        
HIGGENS
        Human Interface Graphical GENeration System (Uni Colorado)
        
HINT
        Hierarchical INTegration [benchmark]
        
HIPERLAN
        HIgh PErformance Radio Local Area Network (LAN, ETSI, EN 300 652)
        
HIPPI
        HIgh Performance Parallel Interface
        
HIPPI
        High Performance Peripheral Interface
        
HIRD
        HURD of Interface Representing Depth (GNU, HURD)
        
HISAM
        Hierarchical Indexed Sequential Acess Method (SAM)
        
HISP
        HIgh SPeed channel connector (Cray, I/O)
        
HLL
        High Level Language
        
HLLAPI
        High Level Language Application Programming Interface (IBM, API)
        
HLPI
        Higher Layer Protocol Identifier
        
HLR
        Home Location Register (LR, GSM, GPRS, mobile-systems)
        
HLS
        Hue, Luminance, Saturation (color system, DTP)
        
HMA
        High Memory Area
        
HMAC
        keyed-Hashing for Message AuthentiCation (cryptography, RFC 2104)
        
HMC
        Highspeed Memory Controller (Apple)
        
HMD
        Head Mounted Display (VR)
        
HMI
        Human-Machine Interface
        
HMMP
        HyperMedia Management Protocol (MS, Intel, Cisco, WWW, HMMS)
        
HMMS
        HyperMedia Management Schema (MS, Intel, Cisco, WWW)
        
HMOS
        High performance Metal Oxide Semiconductor (IC)
        
HMP
        Host Monitoring Protocol (RFC 869)
        
HMUX
        Hybrid MUltipleXer (FDDI), "H-MUX"
        
HNF
        Heinz Nixdorf Museumsforum (org., Paderborn, Germany)
        
HNI
        Heinz Nixdorf Institut (org., ZIT)
        
HOD
        Host On Demand (IBM, HOD)
        
HOL
        Head Of Line
        
HOLAP
        Hybrid OnLine Analytical Processing (OLAP, DB)
        
HOMERF
        Home Radio Frequency (WLAN), "HomeRF"
        
HOOPS
        Hierarchical Object Orientated Picture System (Ithaca, Autodesk, OOP)
        
HOP
        Homecast Open Protocol (WLAN, Alation Systems)
        
HP
        Hewlett Packard (manufacturer)
        
HPA
        High Performance Architecture (HP)
        
HPBIDS
        Hewlett Packard Broadband Internet Delivery System (HP, Internet), "HP BIDS"
        
HPC
        Handheld Personal Computer (PC), "H/PC"
        
HPC
        High Performance Computing
        
HPCC
        High Performance Computing and Communication
        
HPCS
        High Performance Communication Server (Tobit, NLM, Netware)
        
HPF
        High Performance FORTRAN (FORTRAN)
        
HPFS
        High Performance FileSystem (OS/2)
        
HPGL
        Hewlett Packard Graphics Language (CAD, CAM, HP)
        
HPIB
        Hewlett Packard Interface Bus (GPIB)
        
HPM
        Hyper Page Mode
        
HPMI
        ??? [Schnittstelle] (CAD), "HP-MI"
        
HPNA
        ???
        
HPOFS
        High Performance Optical File System (IBM, OS/2, MOD)
        
HPPA
        Hewlett Packard Precision Architecture (HP, RISC)
        
HPPCL
        Hewlett Packard Printer Control Language
        
HPR
        High Performance Routing
        
HPR
        High Priority Request (VUMA)
        
HPTS
        High Performance Transaction Systems
        
HPUX
        Hewlett Packard / UniX (Unix), "HP/UX" 
        
HPVEE
        Hewlett-Packard Visual Engineering Environment (HP, GUI), "HP VEE"
        
HPVUE
        Hewlett Packard - Visual User Environment (HP, GUI), "HP-VUE"
        
HR
        High Rate (IEEE 802.11)
        
HRC
        Hybrid Ring Control (FDDI)
        
HRFWG
        Home Radio Frequency Working Group (WLAN, HOMERF)
        
HS
        High Speed (MODEM)
        
HSA
        High Speed Access
        
HSB
        Hue Saturation Brightness (DTP)
        
HSC
        Hierarchical Storage Controller
        
HSC
        HTML Sucks Completely (HTML, Amiga)
        
HSCDS
        High Speed Cable Data Services
        
HSCSD
        High Speed Circuit Switched Data (GSM, mobile-systems)
        
HSDRAM
        ??? Random Access Memory (RAM, DRAM, IC)
        
HSFS
        High Sierra File System
        
HSI
        High Speed Interface
        
HSI
        Hue, Saturation, Intensity (DTP)
        
HSIS
        ??? High Speed Interface / SNA, "HSI/S" 
        
HSLAN
        High Speed Local Area Network, "HS-LAN" 
        
HSLFX
        ??? [hardware description language] (HDL, NTT, LSI), "HSL-FX"
        
HSLN
        High Speed Local Network
        
HSM
        Hardware Specific Module (ODI)
        
HSM
        Hierarchical Storage Management
        
HSM
        Hierarchisches SpeicherManagement
        
HSMD
        High Speed Mobile Data HSCSD, Germany, E-Plus
        
HSP
        [UUNet] HighSpeed Peering
        
HSP
        Host Signal Processing (DFUe, WinModem)
        
HSRP
        Hot Standby Router Protocol (Cisco, IOS)
        
HSSDS
        High-Speed Switched Digital Service
        
HSSI
        High Speed Serial Interface
        
HSSN
        HighSpeed Switching Network (Cray, ATM)
        
HST
        Hawaiian Standard Time [-1030] (TZ)
        
HST
        High Soft Tech (manufacturer, ISDN)
        
HST
        High Speed Technology (US Robotics)
        
HT
        Horizontal Tab
        
HTDM
        Hybrid Time Division Multiplexing [protocol]
        
HTF
        Hyper-g Text Format (Hyper-G)
        
HTH
        Hope This Helps (slang)
        
HTML
        HyperText Markup Language (Internet, WWW, SGML, RFC 1866/1942, HTML)
        
HTPS
        High Temperature PolySilicon
        
HTSI
        Host Transport Service Interface (ICC, CT-API)
        
HTTP
        HyperText Transfer Protocol (WWW, RFC 2068)
        
HTTPD
        HyperText Transfer Protocol DAEMON (WWW, HTTP)
        
HTTPNG
        HyperText Transfer Protocol - Next Generation (WWW), "HTTP-NG"
        
HTTPS
        HyperText Transfer Protocol [SSL] Secured (HTTP, SSL, WWW)
        
HUGO
        Holland User Group for OS/2 (org., user group, OS/2, Netherlands)
        
HURD
        HIRD of Unix-Replacing DAEMONs (GNU, HIRD)
        
HVC
        Hue-Value-Chroma [model] (Tektronic, DTP)
        
HVD
        High Voltage Differential [technology] (SCSI)
        
HWMC
        HardWare Motion Compensation
        
HYCH
        Hope You Can Help (slang, Usenet, IRC)
        
HYTEA
        HYperText Environment for Authoring (ESPRIT)
        
HYTIME
        Hypermedia/Time-based structuring language (SGML, ISO, IEC, IS 10744), "HyTime"
        

        
        









        

I2C
        Inter Integrated Circuit [bus]
        
I2O
        Intelligent Input/Output (Intel)
        
I2O
        Intelligent Input/Output [bus]
        
I3C
        International Imaging Industry Association (org., PIMA, successorr)
        
I3DL2
        Interactive 3D Audio Level 2 (audio)
        
I4DL
        Interface, Inheritance, Implementation, Installation Definition Language (DME, OSF)
        
I4L
        ISDN for Linux (Linux, ISDN)
        
IA
        Identification and Authentication, "I & A"
        
IA64
        Intel Architecture - 64 BIT (Intel), "IA-64"
        
IAA
        Initial Address Acknowledgment
        
IAA
        Intel Application Accelerator
        
IAAIL
        International Association for Artificial Intelligence and Law (org., AI)
        
IAB
        Internet Activities / Architecture Board (RFC 1160/1601, Internet)
        
IAC
        InterApplication Communication (Apple)
        
IAC
        International Association for Cybernetics (org.)
        
IACT
        International Alliance for Compatible Technology (org.)
        
IAE
        ISDN AnschlussEinheit (ISDN, Telekom)
        
IAF
        Internet Address Finder (WWW)
        
IAHC
        Internet Ad Hoc Committee (org., Internet)
        
IAI
        Institut fuer Angewandte Informatik (org.)
        
IAK
        Internet explorer Administrator Kit (MS, Internet)
        
IAK2
        Internet Access Kit / 2 (IBM, OS/2), "IAK/2"
        
IAL
        Intel Architecture Labs (Intel)
        
IAM
        Initial Address Message
        
IANA
        Internet Assigned Numbers Authority (Internet)
        
IANAL
        I Am Not A Lawyer (slang, Usenet, IRC)
        
IANW
        International Academic Networkshops (conference)
        
IAO
        [fraunhofer] Institut fuer Arbeitswirtschaft und Organisation (org., Stuttgart, Germany)
        
IAOG
        International ADMD Operators Group (org., ADMD, X.400)
        
IAP
        Internet Access Provider (Internet)
        
IAPC
        Intel Architecture Personal Computer (PC, Intel), "IA-PC"
        
IAPR
        International Association on Pattern Recognition (org.)
        
IAR
        Initial Address Reject
        
IARP
        International Advanced Robotic Program (org.)
        
IAS
        Interactive Application System (DEC)
        
IAT
        Information Access Technology (Provider)
        
IAUG
        International AIX User Group (org., Unix, AIX, user group)
        
IAW
        In Accordance With (slang, Usenet, IRC)
        
IB4J
        Instant BASIC for Java (Java, BASIC)
        
IBASES
        Intel Baseline AGP System Evaluation Suite (AGP, Intel)
        
IBC
        InterBase Components (Borland, Delphi, InterBase)
        
IBCN
        Integrated Broadband Communication Network
        
IBEX
        International Business EXchange (network)
        
IBFI
        Internationales Begegnungs- und Forschungszentrum fuer Informatik (org., GI)
        
IBFN
        Integriertes BreitbandFernmeldeNetz
        
IBM
        International Business Machines (manufacturer, IBM)
        
IBN
        Integrated Business Network
        
IBO
        InterBase Objects (Borland, InterBase)
        
IC
        Integrated Circuit
        
ICA
        Independent Computing Architecture (Cytrix, Windows NT, ASP)
        
ICA
        Information Connection Architecture (SGI)
        
ICA
        Integrated Chameleon Architecture (SGML)
        
ICA
        Integrated Communications Architecture
        
ICA
        Intelligent Communication Adapter (Banyan, VINES)
        
ICA
        International Communications Association (org.)
        
ICADD
        International Committee for Accessible Document Design (org.)
        
ICALP
        International Colloquium on Automata, Languages and Programming (EATCS, conference)
        
ICAN
        Individual Customer Access Network
        
ICANN
        Internet Corporation for Assigned Names and Numbers (org., Internet, ICANN)
        
ICAP
        Internet Calendar Access Protocol (TCP/IP, Lotus)
        
ICAT
        Interactive Code Analysis Tool [debugger] (IBM, Java)
        
ICC
        Intelligent Communications Control
        
ICC
        Intergrated Circuit Card (ICC)
        
ICC
        International Color Committee (org.)
        
ICC
        International Conference on Communications (conference)
        
ICC
        Internode Communication Channel (SMP, Scalis)
        
ICCAD
        International Conference on Computer Aided Design (IEEE, conference)
        
ICCC
        InterClient Communication Convention (X-windows)
        
ICCC
        International Conference on Computer Communication (conference)
        
ICCC
        International Council on Computer Communication (org.)
        
ICCCM
        InterClient Communication Convention Manual (X-Windows)
        
ICCD
        International Conference on Computer Design (IEEE, conference)
        
ICCI
        International Conference on Computing and Information (conference)
        
ICCIMA
        International Conference on Computational Intelligence and Multimedia Applications (AI, conference)
        
ICCS
        Integrated Communications Cabling System (SNI)
        
ICD
        Installable Client Driver (OpenGL)
        
ICD
        International Code Designator (ATM)
        
ICDA
        Integrated Cached Disk-Arrays
        
ICDB
        Integrated Communications DataBase (DB)
        
ICDCS
        International Conference on Distributed Computing Systems (INRIA, IEEE-CS)
        
ICE
        In-Circuit-Emulation
        
ICE
        Information and Content Exchange
        
ICF
        International Cryptographic Framework (HP, cryptography)
        
ICH
        I/O Controller Hub [aka Southbridge] (Intel, I/O, GMCH)
        
ICH
        Intelligent Connection Handling (BIG)
        
ICI
        Industrial Computing Initiative (LLNL, LANL, Cray, ..., HPC, MPP)
        
ICIA
        International Communications Industries Association (org.)
        
ICL
        International Computers Limited (manufacturer, UK, USA, Japan, Fujitsu)
        
ICM
        Image Color Matching (MS, Windows 95, API)
        
ICMC
        International Computer Music Conference (fair)
        
ICMP
        Internet Control Message Protocol  [version 4] (TCP/IP, RFC 792, Internet)
        
ICMPV6
        Internet Control Message Protocol  Version 6 (Internet, IPV6, RFC 1885), "ICMPv6"
        
ICMX
        ??? [transport level interface standard]
        
ICONZ
        Internet Company Of New Zealand (org., Usenet)
        
ICOT
        Institute for new generation COmputer Technology (org., Japan, FGCS)
        
ICP
        Independent Content Provider (MSN)
        
ICP
        Intelligent Computer Peripherals (manufacturer)
        
ICP
        Interface Change Proposal
        
ICP
        Internet Caching Protocol (Internet)
        
ICQ
        [I seek you] (Internet, ICQ)
        
ICR
        Intelligent Character Recognition
        
ICRA
        Internet Content Rating Association (Internet, org., IBM, MS, AOL, ...)
        
ICS
        IBM Cabling System
        
ICS
        International Classification for Standards (ISO)
        
ICS
        Internet Connect Sharing (MS, IE, DHCP)
        
ICS
        Irish Computer Society (org., Irland)
        
ICSC
        Intelligent Channel/Storage Control, "IC/SC" 
        
ICSI
        International Computer Science Institute (org., USA)
        
ICSS
        Internet Connection Secure Server (IBM, WWW)
        
ICTF
        Internet Content Task Force (org., Internet)
        
ICU
        Instruction Cache Unit (CPU, POWER)
        
ICU
        Interactive Chart Utility (IBM, GDDM)
        
ICU
        ISA Configuration Utility (BIOS, PNP, ISA)
        
ICURYY
        I see you are too wise (slang)
        
ID
        IDentification
        
IDA
        Interchange of Data between Administrations (org., Europe)
        
IDAC
        Infobus Data Access Component (Lotus, Java)
        
IDAPI
        Integrated Database API (DB, IBM, Novell, Borland, predecessor, BDE, API)
        
IDAS
        Interchange DAta Structure
        
IDB
        Integrated DataBase (DB)
        
IDBEF
        Integrated DataBase Extract Format (IDB, DB)
        
IDBTF
        Integrated DataBase Transaction Format (IDB, DB)
        
IDC
        Inter-Device Communication (IBM, OS/2)
        
IDC
        International Data Corporation
        
IDCT
        Inverse Discrete Cosine Transformation (DCT)
        
IDDD
        International Direct Distance Dialing
        
IDE
        Integrated Development Environment
        
IDE
        Integrated Drive Electronics (HDD)
        
IDEA
        International Data Encryption Algorithm (cryptography)
        
IDEA
        Internet Design, Engineering, and Analysis notes (IETF)
        
IDEF
        Integrated [CAM] DEFinition (CAM)
        
IDES
        International Demonstration and Education System (R/3, SAP)
        
IDES
        Intrusion Detection Expert System (IBM, IDS, XPS)
        
IDF
        Intel Developer Forum (Intel, conference)
        
IDG
        International Data Group (org.)
        
IDI
        Initial DOMAIN Identifier (NSAP, IDP)
        
IDIS
        Integrated Dealer and Importer System (MBAG)
        
IDL
        Interactive Data Language (Research Systems)
        
IDL
        Interface Definition Language (DCE, CORBA)
        
IDLC
        ISDN Data Link Control (ISDN)
        
IDLE
        International Date Line, East [+1200] (TZ)
        
IDLW
        International Date Line, West [-1200] (TZ)
        
IDMR
        Inter-DOMAIN Multicast Routing (IETF, WG, Multicast)
        
IDN
        Integrated Digital Network
        
IDOC
        Intermediate DOCuments (ALE, SAP)
        
IDOMENEUS
        Information and Data on Open MEdia for NEtworks of USers (WWW, Uni Hamburg, Germany)
        
IDP
        Initial DOMAIN Part (NSAP)
        
IDP
        Internet Datagram Protocol (XNS)
        
IDRC
        ??? Redundancy Check (Datenkompression)
        
IDS
        Information Delivery System
        
IDS
        Intelligent Decision Server (IBM)
        
IDS
        Inter Data Systems [gmbh] (manufacturer)
        
IDS
        Internal Directory System
        
IDS
        Intrusion Detection System (IDS)
        
IDSA
        Interactive Digital Software Association (org., Nintendo, Sony, MS, ...)
        
IDSS
        Interoperability Decision Support System
        
IDT
        Integrated Device Technology (manufacturer)
        
IDT
        Interrupt Descriptor Table
        
IDTRC
        Interrupt Descriptor Table Register Cache (IDT, CPU, Intel)
        
IDU
        Interface Data Unit
        
IDUPGSSAPI
        Independent Data Unit Protection Generic Security Service API (GSS, API), "IDUP-GSS-API"
        
IDV
        Individuelle DatenVerarbeitung
        
IDVC
        Integrated Data/Voice Channel
        
IE
        Information Element (ATM, ISDN)
        
IE
        Information Engineering
        
IEAAIE
        [international conference on] Industrial and Engineering Applications of Artificial Intelligence and Expert systems (conference, ISAI, ..., AI), "IEA/AIE"
        
IEC
        Inter-Exchange Carrier (AT&T, MCI, LEC)
        
IEC
        International Electrotechnical Commission (org., Switzerland)
        
IECC
        Informix Enterprise Command Center (Informix)
        
IEDM
        International Electron Device Meeting
        
IEE
        Institute of Electrical Engineers (org., UK)
        
IEEE
        Institute of Electrical and Electronic Engineers (org., USA)
        
IEEECS
        Institute of Electrical and Electronic Engineers - Computer Society (org., IEEE), "IEEE-CS"
        
IEEJ
        ??? (org.)
        
IEF
        Information Engineering Facility
        
IEICE
        ??? (org.)
        
IEMMC
        Internet EMail Marketing Council (Internet, org., spam)
        
IEMSI
        Interactive Electronic Mail Standard Identification
        
IEN
        Internet Engineering Notes
        
IEN
        Internet Experiment Notebook (predecessor, RFC)
        
IEPG
        Internet Engineering and Planning Group (Internet, RFC 1690)
        
IEPRC
        International Electronic Publishing Research Centre (org., PIRA)
        
IES
        Intelligent Emulation Switching (Epson)
        
IESE
        [fraunhofer] Institut fuer Experimentelles Software Engineering (org.)
        
IESG
        Internet Engineering Steering Group (IETF)
        
IETF
        Internet Engineering Task Force (org., IAB, Internet, RFC 1603/2418)
        
IETFWG
        Internet Engineering Task Force - Working Group (RFC 1603, IETF), "IETF-WG"
        
IETM
        Interactive Electronic Technical Manual
        
IETS
        Interim European Telecommunications Standards (GSM, mobile-systems)
        
IEW
        Information Engineering Workbench (IBM)
        
IF
        Information Flow (IN)
        
IFAC
        International Federation for Automatic Control (org., Austria)
        
IFAD
        Institute of Applied Computer Science (org., Denmark)
        
IFC
        InterFace Clear (GPIB)
        
IFC
        Internet FAQ Consortium (Internet, FAQ, org.)
        
IFC
        Internet Foundation Classes (ONE, Netscape, Java)
        
IFCM
        Independent Flow Control Messages (SSP)
        
IFD
        Information Flow Diagram (IRM)
        
IFE
        Internet Forum Europe (fair)
        
IFIOM
        Intelligent FDDI Input Output Module (SMC, ES/1, FDDI)
        
IFIP
        International Federation of Information Processing societies (org.)
        
IFMP
        Ipsilon Flow Management Protocol (IP)
        
IFNA
        International FidoNet Association (org., Fido)
        
IFP
        Instruction Fetch Pipeline (Motorola, CPU)
        
IFR
        Interleaved Frame Recording (video)
        
IFS
        ICOT Free Software (ICOT)
        
IFS
        Installable File System (OS/2, DOS)
        
IFS
        Intelligent Fax System (Ricoh)
        
IFS
        Internal Field Separator (Unix, AWK)
        
IFS
        Internet File System (Oracle, DB, Internet)
        
IFX
        Interactive Financial eXchange (USA, banking)
        
IGBT
        Insulated Gate Bipolar Transistor (IC)
        
IGC
        Institute for Global Communications (USA)
        
IGD
        [fraunhofer] Institut fuer Graphische Datenverarbeitung (org., Darmstadt, Germany)
        
IGES
        Initial Graphics Exchange Specification (ANSI, USA, CIM, CAD)
        
IGMP
        Internet Group Management / Multicast Protocol (RFC 1112/2236, IP, Multicast)
        
IGN
        IBM Global Network (network)
        
IGOSS
        Industry/Government Open System Specification
        
IGP
        Interior Gateway Protocol
        
IGRP
        Interior Gateway Routing Protocol (IPX, Novell)
        
IGS
        IBM Global Services (IBM)
        
IHS
        Integrated Heat Spreader
        
IHV
        Independent Hardware Vendor
        
IIA
        Information Industry Association (org.)
        
IIASA
        International Institute for Applied Systems Analysis (org., Austria)
        
IICM
        Institute for Information processing and Computer supported new Media (org., Oestereich)
        
IID
        Interface IDentifier (COM)
        
IIF
        Incoming InterFace (PIM, OIF, Multicast)
        
IIIR
        Integration of Internet Information Ressources (IETF)
        
IIIS
        International Institute of Informatics and Systemics (org., USA)
        
IIL
        Integrated Injection Logic
        
IIN
        Integrated Information Network
        
IIOP
        Internet Inter-ORB Protocol (CORBA, Internet, ONE, GIOP, TCP/IP)
        
IIP
        Interoperability Improvement Panel
        
IIR
        Infinite Impulse Response (DSP)
        
IIRC
        If I Remember/Recall Correctly (Usenet, IRC, slang)
        
IIS
        [fraunhofer] Institut fuer Integrierte Schaltungen (org.)
        
IIS
        Intelligence Information System (mil.)
        
IIS
        Internet Information Server (MS)
        
IISP
        Interim Inter-Switch Signaling Protocol (P-NNI, ATM)
        
IIT
        Integrated Information Technology
        
IITF
        Information Infrastructure Task Force (org., USA)
        
IIUC
        If I Understand Correctly (slang, Usenet, IRC)
        
IJCAI
        International Joint Committee / Conference on Artificial Intelligence (conference, org., AI)
        
IJH
        Initial Java Heap (Java)
        
IKE
        IBM Kiosk for Education (IBM)
        
IKP
        Internet Keyed Payment [protocols] (IBM, WWW), "iKP"
        
IKYABWAI
        I know You Are But What Am I? (slang, Usenet, IRC)
        
ILEC
        Independent Local Exchange Carrier
        
ILETS
        International Law Enforcment Telecom Seminars (ETSI)
        
ILFA
        Integrierte Logische Funktionen fuer Anwendungen (IWBS, Uni Karlsruhe, Germany, Uni Duisburg, Germany)
        
ILLIGAL
        ILLinois Genetic Algorithm Laboratory (org., Uni Illinois, USA), "IlliGAL"
        
ILLINET
        ILlinois LIbrary NETwork (network, USA)
        
ILMI
        Interim Link / Local Management Interface (ATM)
        
ILPNET
        [european] Inductive Logic Programming scientific NETwork
        
ILS
        Intelligente LernSysteme
        
ILT
        [Linux] Instructor Led Training (Linux, Caldera)
        
IM
        Information Management
        
IM
        Interface Module
        
IMA
        Interactive Multimedia Association (org.)
        
IMA
        International MIDI Association (org.)
        
IMAC
        Isochronous Media Access Control (FDDI), "I-MAC"
        
IMACS
        International ??? (org.)
        
IMAIL
        Intelligent MAIL
        
IMAL
        Integrated Media Architecture Laboratory (Bell, org., USA)
        
IMAO
        In My Arrogant Opinion (slang, Usenet, IRC)
        
IMAP
        Internet Message Access Protocol (RFC 2060)
        
IMB
        Intel Media Bench
        
IMC
        ??? (org.), "IM&C"
        
IMC
        Information Management Concept
        
IMCO
        In My Considered Opinion (slang, Usenet, IRC)
        
IMDB
        Internet Movie DataBase (Internet, WWW, DB)
        
IME
        Input Method Editor (MS, Windows)
        
IMEI
        International Mobile Equipment Identity (MS, GSM, mobile-systems)
        
IMG
        IMplementation Guide (R/3, SAP)
        
IMHO
        In My Humble Opinion (slang, Usenet, IRC)
        
IMIA
        International Medical Informatics Association
        
IML
        Initial Machine Load
        
IMMD
        Institut fuer Mathematische Maschinen und Datenverarbeitung (org., Uni Erlangen, Germany)
        
IMNSCO
        In My Not So Considered Opinion (slang, Usenet, IRC)
        
IMNSHO
        In My Not So Humble / Honest Opinion (slang, Usenet, IRC)
        
IMO
        In My Opinion (slang, Usenet, IRC)
        
IMP
        Interface Message Processors (ARPANET, MILNET)
        
IMPACT
        Information Market Policy ACTions (ECHO)
        
IMR
        Information Management Representitive (IM)
        
IMR
        Internet Monthly Report (Internet)
        
IMR
        Interrupt Mask Register (IC)
        
IMS
        [fraunhofer] Institut fuer Mikroelektronische Schaltungen und systeme (org., Dresden, Germany)
        
IMS
        Information Management System (IBM)
        
IMS
        Integrated Management System
        
IMS
        Integrated Measurement Systems [inc] (manufacturer)
        
IMS
        Intelligent Manufacturing System (MITI)
        
IMS
        International Meta Systems (manufacturer)
        
IMSESA
        Information Management System/Enterprise Systems Architecture (IBM), "IMS/ESA"
        
IMSI
        International Mobile Subscriber Identity (MM, GSM, mobile-systems)
        
IMSO
        Integrated Micro Systems Operation (Intel)
        
IMSP
        nternet Message Support Protocol (Internet)
        
IMSVS
        Information Management System/Virtual Storage, "IMS/VS" 
        
IMTC
        International Multimedia Teleconferencing Consortium (org., MS, Intel, Apple, IBM, SNI, AT&T, ...)
        
IN
        Individual Network [e.v.] (org., ISP)
        
IN
        Intelligent Network (ITU-T, Q.1200)
        
INA
        Intelligent Network Architecture (IN)
        
INAP
        Intelligent Network Application Protocol (IN)
        
INCM
        Intelligent Network Conceptual Model (IN)
        
INCORE
        INternet COntent Rating for Europe (org., Internet)
        
INDC
        [international conference on] Information Networks and Data Communication (IFIP, conference)
        
INET
        International NETworking conference (conference), "iNET" 
        
INGRES
        INteractive Graphic REtrieval System
        
INHOPE
        INternet HOtline Providers in Europe (org., ISP)
        
INL
        Inter Node Link
        
INMS
        Integrated Network Management System
        
INN
        Inter Node Network
        
INNC
        International Neural Network Conference (INNS, conference, NN)
        
INNS
        International Neural Network Society (org., AI, NN)
        
INOC
        Internet Network Operations Center
        
INPOL
        INformationssystem der POLizei
        
INRIA
        Institut National de Recherche en Informatique et Automatique (org., France)
        
INSITS
        INternational Symposium on IT Standardization (conference, IFIP, GI)
        
INST
        INformation Standards and technology Standardization
        
INTA
        International Trademark Association (org.)
        
INTAP
        Interoperability Technology Association for Information Processing (org.)
        
INTEL
        INtegriertes TEileLogistiksystem (MBAG)
        
INTERNIC
        Inter Network Information Center (org., Internet), "InterNIC"
        
INX
        INformation eXchange
        
INXS
        INternet eXchange Service (ECRC)
        
IO
        Input/Output, "I/O" 
        
IOC
        Initial Operational Capability
        
IOC
        Input / Output Controller
        
IOC
        Input/Output Cluster (Cray, I/O)
        
IOCCC
        International Obfuscated C Code Contest
        
IOCS
        Input Output Control System (OS, IBM 7090)
        
IOCTL
        I/O ConTroL (I/O)
        
IOM
        Integrated Object Model
        
ION
        Internetworking Over NBMA (LIS, LAG, ATM, NBMA)
        
IONL
        Internal Organization of the Network Layer (OSI)
        
IOOC
        Integrated Optics and Optical fiber Communication (conference)
        
IOP
        Input / Output Processor
        
IOPL
        Input Output Privilege Level
        
IOS
        Internetworking Operating System (Cisco, OS)
        
IOS
        InterOrganizational Systems
        
IOTE
        Initial Operational Test and Evaluation, "IOT & E"
        
IOUG
        International Oracle Users Group (org., DB, Oracle, user group)
        
IOW
        In Other Words (DFUe, Usenet, IRC)
        
IP
        Information Provider
        
IP
        Instruction Pointer [register] (CPU, Intel, assembler)
        
IP
        Intellectual Property
        
IP
        Intelligent Peripheral (IN)
        
IP
        Intelligent Peripheral
        
IP
        Internet Protocol [version 4] (RFC 791)
        
IPA
        [fraunhofer] Institut fuer Produktionstechnik und Automation (org., Stuttgart, Germany)
        
IPA
        Information Processing promotion Agency (org., MITI, Japan)
        
IPC
        Internet Privacy Coalition (Internet)
        
IPC
        InterProcess Communications [protocol]
        
IPCE
        InterProcess Communication Environment
        
IPCP
        [PPP] Internet Protocol Control Protocol (PPP, RFC 1332)
        
IPCR
        International Conference on Pattern Recognition (conference, IAPR)
        
IPCS
        Informatique et Calcul Parallele de Strasbourg (org., France, HPC)
        
IPCS
        Interactive Problem Control System
        
IPD
        Intelligent Printer Data
        
IPDS
        IBM Personal Dictation System (IBM, voice processing)
        
IPDS
        Intelligent Printer Data Stream (IBM, CCS)
        
IPDU
        Internet Protocol Data Unit (PDU)
        
IPDVMRP
        IP Distance Vector Multicast Routing Protocol (RFC 1075, IP, Multicast), "IP-DVMRP"
        
IPE
        Integrated Programming Environment
        
IPES
        Improved Proposed Encryption Standard (IDEA, PES, cryptography)
        
IPFC
        Information Presentation Facility Compiler (IBM, OS/2)
        
IPG
        International Programmers Guild (org.)
        
IPG
        InterPacket Gap (IPX, IP (???))
        
IPI
        Intelligent Peripheral Interface [protocol]
        
IPL
        Initial Program Load
        
IPM
        Impulses Per Minute
        
IPM
        InterPersonal Messaging
        
IPM
        Interruptions Per Minute
        
IPMI
        Intelligent Platform Management Interface (Intel, HP, DELL)
        
IPMS
        InterPersonal Messaging System
        
IPN
        Info Pool Network (ISP)
        
IPNG
        Internet Protocol Next Generation (IP, RFC 1550/1752), "IPng"
        
IPOC
        Interim Policy Oversight Committee (Internet, TLD)
        
IPP
        Internet Presence Provider (Internet)
        
IPP
        Internet Printing Protocol (IBM, OS/400)
        
IPS
        Information Processing Standards
        
IPS
        InPlane Switching [technology] (LCD)
        
IPSE
        Integrated Programming Support Environment (CASE)
        
IPSEC
        Internet Protocol SECurity (org., Internet, IETF, DES)
        
IPSJ
        Information Processing Society of Japan (org., Japan)
        
IPSP
        Internet Protocol Security Protocol
        
IPTC
        International Press Telecommunications Council (org.)
        
IPTD
        [microsoft] Internet Platform and Tools Division (MS)
        
IPU
        Intelligent Processing Unit
        
IPU
        ISDN-datex-P-Umsetzer
        
IPV6
        Internet Protocol Version 6 (IP, RFC 1883/1884), IPv6
        
IPVR
        Institut fuer Parallele und Verteilte Rechensysteme (org., Uni Stuttgart, Germany)
        
IPW
        Incremental Packet Writing (CD-R)
        
IPX
        Internet Packet eXchange (Novell, Netware)
        
IPXCP
        [PPP] Internetwork Packet eXchange Control Protocol (PPP, RFC 1552)
        
IPXODI
        IPX Open Datalink Interface (Novell, Netware)
        
IPXSPX
        IPX / Sequenced Packet eXchange (Novell, Netware), "IPX/SPX"
        
IPXWAN
        Internet Packet eXchange over various WAN media (Novell, IPX, WAN, RFC 1634)
        
IR
        Information Retrieval
        
IR
        Interface Repository (ORB)
        
IR
        Internet Registry
        
IRC
        InformationsRessourcen Controlling (IM)
        
IRC
        Internet Relay Chat [protocol] (RFC 1459, Internet)
        
IRCS
        Institute for Research in Cognitive Science (org., Uni Pennsylvania, USA)
        
IRDA
        InfraRed Data Association (org., manufacturer, IRDA), "IrDA" 
        
IRDS
        Information Resource Dictionary System (ANSI, ISO, IM)
        
IRF
        Integer Register File (DEC, Alpha, CPU)
        
IRIS
        Institute for Robotics and Intelligent Systems (org., Canada)
        
IRL
        In Real Life (slang, Usenet, IRC)
        
IRLAN
        InfraRed Local Area Network (IRDA, LAN, TTP), "IrLAN"
        
IRLAP
        InfraRed Link Access Protocol (IRDA, IRLAP), "IrLAP"
        
IRLMP
        InfraRed Link Management Protocol (IRDA, IRLAP), "IrLMP"
        
IRLMPTP
        InfraRed ??? (IRDA), "IrMLP/TP"
        
IRLPT
        InfraRed Line PrinTer (IRDA, LPT, TTP), "IrLPT"
        
IRM
        Information Resources Management
        
IRMX
        Intel Real time Multitasking eXecutive (OS, Intel), "iRMX"
        
IROBEX
        InfraRed OBject EXchange protocol (IRDA, TTP), "IrOBEX"
        
IRP
        I/O Request Packet (I/O)
        
IRQ
        Interrupt ReQuest
        
IRR
        Interrupt Request Register (IC)
        
IRRP
        Inter-DOMAIN Routing Protocol (ISO 10747)
        
IRSG
        Internet Research Steering Group (org., Internet)
        
IRT
        Interrupt Response Time
        
IRTF
        Internet Research Task Force (IAB, Internet)
        
IRTP
        Internet Reliable Transaction Protocol (RFC 938)
        
IRTRANP
        InfraRed TRANsfer Picture (IRDA)
        
IRV
        International Reference Version [character set] (ISO, IS 646)
        
IS
        Intermediate System (ATM)
        
IS
        International Standard (ISO)
        
IS
        International Supplement (ODT)
        
ISA
        Industry Standard Architecture (PC)
        
ISA
        Instruction Set Architecture (CPU)
        
ISA
        Integrated Systems Architecture (ESPRIT, ANSA)
        
ISA
        Interactive Services Association (org., USA)
        
ISADS
        International Symposium on Autonomous Decentralized Systems (IEEE-CS, conference)
        
ISAGAT
        Industry Standard Architecture - Guaranteed Access Time (ISA, DMA, PCI)
        
ISAKMP
        Internet Security Association and Key Management Protocol
        
ISAM
        Index-Sequential Access Mode (DB, SAM)
        
ISAPI
        Internet Server Application Programmer's Interface (MS, C/S, WWW, API)
        
ISBN
        International Standard Book Number
        
ISC
        Intelligent Screen Cognition
        
ISC
        Internet Service Center (ISP)
        
ISC
        Internet Software Consortium (org., Internet)
        
ISCA
        International Society for Computers and their Applications (org., AI)
        
ISD
        Integrated Sensor Device (Wacom, LCD)
        
ISD
        Interface Summary Design
        
ISDN
        Integrated Services Digital Network (ITU)
        
ISDNUP
        ISDN User Part (ISDN, GSM, mobile-systems), "ISDN-UP"
        
ISDV
        Integrated Software Development and Verification
        
ISEE
        Information System Engineering Environment (Westmount, CASE)
        
ISEE
        Integrated Software Engineering Environment [reference model] (NIST, ECMA, CASE)
        
ISFUG
        Integrated Software Federal User Group (org., user group)
        
ISH
        Information SuperHighway
        
ISI
        [fraunhofer] Institut fuer Systemtechnik und Innovationsforschung (org.)
        
ISI
        Information Sciences Institute (org., USA)
        
ISI
        Information Society Initiative (UK)
        
ISIL
        Internet Search Interface Language (Internet, Sherlock, Apple)
        
ISIS
        ??? (OS, Intel)
        
ISIS
        Industrial Signature Interopeability Specification (cryptography)
        
ISIS
        Intermediate System to Intermediate System [protocol / routing] (OSI, RFC 1195), "IS-IS"
        
ISIT
        [fraunhofer] Institut fuer SiliziumTechnologie (org., Itzehoe, Germany), "ISiT"
        
ISKO
        International Society for Knowledge Organisation (org.)
        
ISLM
        Integrated Services Line Module
        
ISLN
        Integrated Services Local Network
        
ISLU
        Integrated Services Line Unit
        
ISM
        Industrial, Science, Medical [ = 2,4 GHz ] (WLAN)
        
ISN
        Information Systems Network
        
ISN
        Initial Segment / Sequence Number (TCP/IP)
        
ISN
        Integrated Systems Network
        
ISN
        Internet Shopping Network (network, WWW)
        
ISO
        International Standards Organisation [International Organization for Standardization] (org.)
        
ISOC
        Internet SOCiety (org., Internet)
        
ISODE
        ISO Development Environment (OSI)
        
ISONET
        ISO information NETwork (ISO, network)
        
ISP
        Image Synthesis Processor (IC, Graphik, TSP)
        
ISP
        Integrated System Peripheral control (Wyse)
        
ISP
        Interactive String Processor (BS2000)
        
ISP
        International Standardized Profiles (ISO)
        
ISP
        Internet Service Provider (Internet)
        
ISPA
        Internet Service Provider Austria (org., ISP)
        
ISPA
        ISDN PAcket [driver] (ISDN)
        
ISPC
        Internet Service Providers' Consortium (ISP, IPP, org.), "ISP/C"
        
ISPF
        Interactive System Productivity Facility (IBM)
        
ISPN
        International Standard Program Number
        
ISPO
        Information Society Project Office [of the european commission] (org., Europe, ECHO)
        
ISPS
        ??? [hardware description language] (HDL)
        
ISQL
        Interactive Structured Query Language
        
ISR
        Interrupt Service Register (IC)
        
ISR
        Interrupt Service Request
        
ISR
        Interrupt Service Routine
        
ISRC
        International Standard Recording Code
        
ISSAC
        International Symposium on Symbolic and Algebraic Computation (ACM, conference)
        
ISSCC
        International Solid State Circuits Conference (conference)
        
ISSE
        Internet Streaming SIMD Extension (Intel, Pentium, Katmai, SIMD)
        
ISSN
        Integrated Special Services Network
        
ISSN
        International Standard Serial Number
        
ISSRE
        International Symposium on Software Reliability Engineering (IEEE-CS, conference)
        
ISST
        [fraunhofer] Institut fuer Software- und SystemTechnik (org., Dortmund, Germany)
        
IST
        Immerse System Technology (VR)
        
IST
        Indian Standard Time [+0530] (TZ)
        
IST
        Initial System Test
        
ISTM
        It Seems To Me (DFUe, Usenet, IRC)
        
ISTO
        Information Science and Technology Office (org., DARPA)
        
ISTR
        I Seem To Recall / Remember (DFUe, Usenet, IRC)
        
ISUP
        Integrated Services User Part (ISDN)
        
ISV
        Independent Software Vendor
        
ISV
        Independent Solution Vendor (DEC)
        
ISV
        Information Service Vendor
        
IT
        Information Technology
        
IT
        Iran Time [+0300] (TZ)
        
ITA
        Interim Type Approval
        
ITAA
        Information Technology Association of America (org., USA)
        
ITAC
        Information Technology Association of Canada (org., Canada)
        
ITE
        InformationsTechnische Einrichtungen
        
ITG
        InformationsTechnische Gesellschaft (org., VDE)
        
ITLB
        Instruction Translation Look-aside Buffer (CPU)
        
ITM
        Information Technology Management
        
ITMA
        Information Technology Management Association (org., USA)
        
ITMS
        Immediate check Truth Maintenance System (AI)
        
ITOT
        ISO Transport service on TCP/IP (ISO, TCP/IP, RFC 2126)
        
ITP
        Intent to Package (Linux, Debian)
        
ITR
        Internet Talk Radio (Internet)
        
ITRC
        Information Technology Research Centre (org., Canada)
        
ITRON
        Industrial TRON (TRON, OS)
        
ITS
        Incompatible Time-sharing System (DEC)
        
ITS
        International Telecommunications Society (org.)
        
ITSDN
        Integrated Tactical/Strategic Data Network (mil., USA, network)
        
ITSEC
        [european] Information Technology Security Evaluation Criteria (Europe)
        
ITSEM
        Information Technology Security Evaluation Manual / Methodology (ITSEC)
        
ITSP
        Internet Telephony Service Provider (Internet, CAT)
        
ITSPO
        Information Technology Standards Program Office (org., USA)
        
ITT
        International Telegraph and Telephone (org.)
        
ITTI
        Information Technology Training Initiative (org., UK)
        
ITTM
        ??? [institute of telecommunications and information technology] (org., Malaysia)
        
ITU
        Information Transport Utility
        
ITU
        International Telecommunications Union (org.)
        
ITUR
        International Telecommunications Union - Radio sector (ITU, org.), "ITU-R"
        
ITUSA
        Information Technology Users Standards Association (org., USA)
        
ITUT
        ITU Telecommunications [standards group] (org., successorr, CCITT), "ITU-T"
        
ITUTSS
        International Telecommunications Union Telecommunication Standards Sector (ITU)
        
ITYM
        I Think You Meant (DFUe, Usenet, IRC)
        
IU
        Integer Unit (CPU)
        
IUCV
        Inter-User Communications Vehicle (IBM, TCP/IP, API, VM/ESA, CP)
        
IUK
        Informations- und Kommunikationstechnik, "IuK" 
        
IUKDG
        Informations- Und KommunikationsDiensteGesetz DFUe, Germany
        
IUMA
        Internet Underground Music Archive (WWW)
        
IUP
        Interim Update Package (3COM)
        
IUT
        Implementation Under Test
        
IUTSUT
        Implementation Under Test - System Under Test, "IUT-SUT"
        
IV
        InformationsVerarbeitung
        
IV
        Initialisation Vector (cryptography)
        
IVA
        International Voice Association (org.)
        
IVC
        Integrated Visual Computing [architecture] (SGI)
        
IVDENIC
        InteressenVerbund DEutsches Network Information Center (org., Internet), "IV-DENIC"
        
IVDLAN
        Integrated Voice and Data Local Area Network
        
IVR
        Interactive Voice Response (CTI)
        
IVS
        IBM Verkabelungs-System
        
IVS
        Interactive Visualization Systems
        
IVTS
        International Video Teleconferencing Service
        
IWA
        International Webmasters Association (org., WWW)
        
IWBS
        Institut fuer WissensBasierte Systeme (org., IBM)
        
IWC
        Inside Wire Cable
        
IWF
        InterWorking Function (IN, GSM, ...)
        
IWFM
        It Works for Me (DFUe, Usenet, IRC)
        
IWS
        Intelligent Work-Station
        
IWT
        International Workshop on Telematics (conference, IEEE-CS, SEE)
        
IWU
        InterWorking Unit (IN)
        
IWV
        ImpulsWahlVerfahren (MODEM)
        
IXC
        IntereXchange Carrier (FCC, LATA)
        
IYSWIM
        If You See What I Mean (slang, Usenet, IRC)
        
IZM
        [fraunhofer] Institut fuer Zuverlaessigkeit und Mikrointegration (org., Berlin, Germany)
        

        
        









        

J2EE
        Java 2 Enterprise Edition (Java, Sun)
        
J2ME
        Java 2 Micro Edition (Java, Sun)
        
J2SE
        Java 2 Standard Edition (Java, Sun)
        
JAAS
        Java Authentication and Authorization Service (Java, API)
        
JACM
        Journal of the Association for Computing Machinery (ACM)
        
JAD
        Joint Application Development
        
JADE
        Jasmine Application Development Environment (Jasmine, DB, CA)
        
JANET
        Joint Academic NETwork (network, UK)
        
JAP
        Java Anon Proxy (Java)
        
JAPH
        Just Another PERL Hacker (PERL)
        
JAR
        Java Archive (Java)
        
JARS
        Java Applet Rating Service (Java, WWW)
        
JASS
        Javascript-Accessable Style Sheets (HTML, WWW, JavaScript)
        
JAVAOS
        Java Operating System (Java), "JavaOS"
        
JAXP
        Java API for XML Processing (Java, API, XML)
        
JBIG
        Joint Bi-level Image expert Group (org., JTC1)
        
JCALS
        Joint Computer-Aided Logistics System (CAL)
        
JCB
        Job Control Block (BS2000)
        
JCDW
        Java Callable Data Wrapper (Java)
        
JCE
        Java Cryptographic Extension (Java, API)
        
JCF
        JESSI Common Framework
        
JCL
        Job Control Language (IBM, OS/360)
        
JCSS
        ??? (org.)
        
JCW
        Java Callable Wrapper (MS, Java, VM, COM)
        
JDBC
        Java standard DataBase Connectivity (DB, Java, Sun, Borland, ODBC, API)
        
JDK
        Java Development Kit (Sun, Java)
        
JEDEC
        Joint Electronic Devices Engineering Council (org.)
        
JEIDA
        Japan Electronics Industry Development Association (org., Japan)
        
JES
        Job Entry Subsystem (IBM)
        
JESS
        Java Expert System Shell (Java, Shell)
        
JFC
        Java Foundation Classes (Java, API)
        
JFET
        Junction Field Effect Transistor (IC, FET)
        
JFIF
        JPEG File Interchange Format (JPEG)
        
JFS
        Journaled File System (LVM)
        
JFT
        Job File Table (DOS)
        
JICST
        Japan Information Center of Science and Technology (org., Japan)
        
JIEO
        Joint Interoperability Engineering Organization (org., DISA, mil., USA)
        
JIF
        JPEG Interchange Format (JPEG)
        
JIPDEC
        Japan Information Processing DEvelopment Center (org., Japan)
        
JIPS
        JANET Internet Protocol Service (JANET)
        
JIS
        Japanese Institute of Standards (org., Japan)
        
JISC
        Japanese Industrial Standards Committee (org., Japan)
        
JIT
        Just In Time [compiler]
        
JITC
        Joint Interoperability Technology Center (org., DISA, mil.)
        
JK
        Just Kidding (DFUe, Usenet, IRC)
        
JMI
        Java Metadata Interface (Java)
        
JMSC
        Japanese MIDI Standard Committee (org., Japan)
        
JMSWG
        Joint Multi-TADIL Standards Working Group (org., mil., TADIL)
        
JNDI
        Java Naming and Directory Interface (JavaSoft, API, Java)
        
JNI
        Java Native method Interface (Java, API)
        
JNSS
        ??? (org.)
        
JNT
        Java Network Technology (Java, Informatec)
        
JODS
        Jasmine Object Database Server (Jasmine, DB, CA)
        
JOHNNIAC
        JOHN von Neumann Integrator and Automatic Computer
        
JOL
        Journal of Online Law (WWW)
        
JOLT
        Java OnLine Transactions (Java, Bea, OLTP)
        
JOOP
        Journal of Object Orientated Programming (OOP)
        
JOSS
        JOHNNIAC Open Shop System (OS, JOHNNIAC)
        
JOSS
        Joint Object Services Submission
        
JOTS
        Joint Operational Tactical System (mil.)
        
JOVE
        Jonathan's Own Version of EMACS (EMACS)
        
JPEG
        Joint Photographics Expert Group (org., JTC1, RFC 1521, JPEG)
        
JPLDIS
        Jet Propulsion Laboratory Display Information System
        
JPM
        Java Package Manager (MS, Java, VM)
        
JPS
        Java Print Service (Java)
        
JRE
        Java Runtime Environment (Java)
        
JRMP
        Java Remote Method Protocol (Java)
        
JSA
        Japanese Standards Association (org., Japan)
        
JSA
        Juristische StandardAntwort (slang, Usenet)
        
JSAI
        ??? (org.)
        
JSAN
        Joint Staff Automation of the Nineties (mil.)
        
JSD
        Jackson System Development (JSP)
        
JSDK
        Java Servlet Development Kit (Java, Sun)
        
JSME
        ??? (org.)
        
JSP
        Jackson Structured Programming (JSD)
        
JSP
        Java Server Pages (Java, Sun, JSP)
        
JSPE
        ??? (org.)
        
JSSA
        Japan Society for System Audits (org., JIPDEC, Japan)
        
JSSE
        Java Secure Socket Extension (Java, API)
        
JST
        Japan Standard Time [+0900] (TZ)
        
JT
        Java Time [+0730] (TZ)
        
JTA
        Joint Technical Architecture (JIEO, mil.)
        
JTAG
        Joint Test Action Group (org., Philips, IC)
        
JTB
        Jump Trace Buffer (CPU)
        
JTBP
        Job To Be Processed [block] (BS2000)
        
JTBPX
        Job To Be Processed [block] eXtension (BS2000)
        
JTC1
        Joint Technical Committee 1 (ISO, IEC, IT)
        
JTM
        Job Transfer and Manipulation (ISO 8831/32)
        
JTMS
        Justification based Truth Maintenance System (AI)
        
JTSSG
        Joint Telecommunications Standards Steering Group (mil.)
        
JUGHEAD
        Jonzy's Universal Gopher Hierarchy Excavation And Display
        
JUMBO
        Java Universal Molecular Browser for Objects (XML)
        
JUNET
        Japan Unix NETwork (network, Unix)
        
JURIS
        JURistisches InformationsSystem
        
JV
        JobVariablen (BS2000)
        
JVC
        J++ Visual Compiler (MS, Java)
        
JVIDS
        Joint Visually Integrated Display System (mil.)
        
JVM
        Java Virtual Machine (Java)
        
JWICS
        Joint Worldwide Intelligence Communications System (mil.)
        

        
        









        

KAN
        KriminalAktenNachweis (INPOL)
        
KARL
        ??? [hardware description language] (HDL)
        
KB
        KiloByte
        
KBPS
        KiloBits Per Second
        
KBS
        Knowledge-Based System
        
KCC
        Knowledge Consistency Checker (AD)
        
KCGI
        Kyocera ??? (Kyocera)
        
KCGL
        KyoCera Graphic Language (Kyocera)
        
KCMS
        Kodak Color Management System (Kodak, DTP)
        
KDC
        Key Distribution Center, Verschluesselung
        
KDD
        Kokusai Denshin Denwa (org., Japan)
        
KDE
        K Destop Environment (Linux, KDE)
        
KDM
        K Display Manager (KDE)
        
KDT
        Keyboard Display Terminal
        
KERMIT
        Kl-10 Error-free Reciprocal Micro Interconnect over Tty lines
        
KES
        Key Escrow System (cryptography)
        
KFM
        K File Manager (KDE)
        
KGRZ
        Kommunales GebietsRechenzentrum Giessen (org.)
        
KHG
        Kernel Hacking Guide (Linux)
        
KI
        Kuenstliche Intelligenz
        
KIF
        Konferenz der Informatik Fachschaften (conference)
        
KIPS
        Kilo Instructions Per Second
        
KIR
        Kyocera Image Refinement (Kyocera)
        
KISS
        Keep It Simple, Stupid (DFUe, Usenet, IRC)
        
KIT
        Kernel software for Intelligent Terminals (T-Online, Telekom, BTX)
        
KK
        Konnectivity Koordination (DE-NIC, DOMAIN)
        
KLICK
        Karlsruher LIChtleiter-Kommunikationsnetz (Uni Karlsruhe, Germany)
        
KLIPS
        Kilo Logical Inferences Per Second (AI, KI, XPS)
        
KLT
        Karhunen Loeve Transformation
        
KLT
        Kernel Latency Time
        
KM
        Knowledge Management
        
KMOS
        Kernel of a Multiprocess Operating System (OS)
        
KMS
        Knowledge Management Systeme
        
KNI
        Katmai New Instructions (Intel, ISSE, predecessor)
        
KNN
        Kuenstliche Neuronale Netze (neural nets)
        
KNOOM
        KNowledge Orientated Office Model
        
KORE
        ???
        
KOS
        Kent On-Line System (OS)
        
KPCMS
        Kodak Precision Color Management System (Kodak, DTP)
        
KPDL
        Kyocera Page Description Language (Kyocera)
        
KPI
        Kernel Programming Interface (Unix, API)
        
KPM
        Kyocera PrintMonitor (Kyocera)
        
KPOP
        Kerberized Post Office Protocol (POP3)
        
KPT
        Kai's PowerTools (DTP)
        
KQML
        Knowledge Query Manipulation Language (AI)
        
KR
        [brian] Kernighan & [dennis] Ritchie [c standard], "K&R"
        
KR
        Knowledge Representation (AI)
        
KRA
        Key Recovery Alliance (org., cryptography)
        
KSA
        Kalman Saffran Associates (manufacturer)
        
KSA
        KommunikationsStrukturAnalyse (OA, TUB)
        
KSDS
        Key Sequenced Data Set (VSAM)
        
KSH
        Key Strokes per Hour
        
KSH
        Korn SHell (Unix, Shell)
        
KSIG
        Khronos Special Interest Group
        
KSLNRC
        Knowledge Systems Laboratory of the National Research Council (org., Canada, AI)
        
KSOS
        Kernelized Secure Operating System (OS)
        
KSPM
        KeyStrokes Per Minute
        
KSR
        Keyboard Send Receive
        
KSS
        Kilo-Samples per Second
        
KUTGW
        Keep Up The Good Work (slang, Usenet, IRC)
        
KV
        KabelVerzweiger
        
KV
        Karnaugh Veitch diagram
        
KVM
        Kilobyte Virtual Machine (Java, Sun, MIDP)
        
KWM
        K Window Manager (KDE)
        

        
        









        

L1
        Level 1 [cache]
        
L2
        Level 2 [cache]
        
L2F
        Layer 2 Forwarding [protocol] (Shiva, Cisco, IP, IPX, LLC)
        
L2TP
        Layer 2 Tunneling Protocol (PPP, VPN, IP)
        
LA
        Limited Availability (IBM, OS/2)
        
LA
        Location Area (MSC, GSM, mobile-systems)
        
LAC
        Lotus Authorized Consultants (Lotus)
        
LADT
        Local Access Data Transport
        
LAEC
        Lotus Authorized Education Center (Lotus)
        
LAG
        Logical Address Group (ION)
        
LAM
        Local Area Multicomputer (Parallel Computing)
        
LAMP
        Linux, Apache, MySQL, PHP (Linux, Apache, PHP)
        
LAN
        Local Area Network (LAN)
        
LANCE
        LAN Controller for Ethernet (LAN)
        
LANE
        Local Area Network Emulation [over ATM specification] (ATM)
        
LANL
        Los Alamos National Laboratory (org., USA)
        
LAP
        Link Access Procedure / Protocol (CCITT, X.25)
        
LAPB
        Link Access Procedure - Balanced (CCITT, LAP, X.25)
        
LAPD
        Link Access Procedure on the D channel (X.21, ISDN, TA)
        
LAPIC
        Local Advanced Programmable Interrupt Controller (PIC)
        
LAPM
        Link Access Procedure for Modem
        
LAPS
        LAN Adapter and Protocol Support
        
LASER
        Light Amplification by Stimulated Emission of Radiation
        
LASS
        Local Area Signaling Service
        
LAT
        Local Area Transport (DEC)
        
LATA
        Local Access Transport Area
        
LATM
        Local Asynchronous Transfer Mode
        
LAVAS
        LAger- und VersandAbwicklungsSystem (MBAG)
        
LAVC
        Local Area VAX Cluster (VAX, DEC)
        
LAW
        Local Authority Workstation
        
LAWN
        Local Area Wireless Network
        
LBA
        Logical Block Addressing (EIDE)
        
LBM
        Local Bus Master
        
LBN
        Logical Block Number (LBA)
        
LBS
        Location Based Service
        
LBT
        Local Bus Targets
        
LBX
        Low-Band with X
        
LC
        Linux Computer (Corel)
        
LC
        Loopback Capability (UNI, ATM, OAM)
        
LCA
        [Sair] Linux [and GNU] Certified Administrator (Linux, GNU, Unix)
        
LCA
        Logic Cell Array
        
LCC
        Local Control Center
        
LCCM
        LAN Client Control Manager (IBM, LAN)
        
LCD
        Liquid-Crystal Display (LCD)
        
LCD
        LISP Code Directory (EMACS)
        
LCD
        Loss of Cell Delineation (UNI, ATM)
        
LCGI
        Local Common Graphics Interface (CGI, WWW)
        
LCM
        LEAF Creation Method (EES, cryptography)
        
LCN
        Logical Channel Numbers
        
LCOS
        Liquid Crystal On Silicon (LCD)
        
LCP
        [PPP] Link Control Protocol (PPP, RFC 1570)
        
LCP
        [Sair] Linux [and GNU] Certified Professional (Linux, GNU, Unix)
        
LCR
        Least Cost Routing
        
LCS
        Laboratory for Computer Science (MIT)
        
LCS
        Linux Compatibility Standard (Linux)
        
LCS
        Liquid Crystal Shutter
        
LCS
        Lotus Communication Server
        
LCSS
        Liquid Crystal Stereoscopic Shutter [display]
        
LCT
        Last Compliance Time (GCRA)
        
LCU
        LAN CID Utility (LAN, CID, IBM)
        
LCV
        Line Coding Violation [error event] (DS1/E1, DS3/E3)
        
LD
        LAN Destination (ATM)
        
LDA
        Local Delivery Agent
        
LDAP
        Lightweight Directory Access Protocol (RFC 1777, X.500, DS, AD)
        
LDAPAPI
        Lightweight Directory Access Protocol Application Program Interface (LDAP, RFC 1823, API), "LDAP API"
        
LDCM
        LANDesk Client Manager
        
LDD
        Lightly Doped Drain (IC, MOSFET)
        
LDID
        Logical Disk IDentifier (MS)
        
LDP
        Label Distribution Protocol (IETF, RFC 3036, MPLS)
        
LDP
        Linux Document Projects (Linux)
        
LDP
        Loader Debugger Protocol (RFC 909)
        
LDR
        Light Detect Resistor
        
LDT
        Lightning Data Transfer [bus] (AMD)
        
LDT
        Local Descriptor Table (CPU, Intel)
        
LDTR
        Load Descriptor Table Register (CPU, Intel, assembler, IC)
        
LDTRC
        Local Descriptor Table Register Cache (LDT, Intel, CPU)
        
LDVA
        LaenderDatenVerareitungsAnlage
        
LE
        LAN Emulation (LANE, ATM)
        
LEA
        Law Enforcement Agency (ETSI, ETSI 201 671)
        
LEAF
        Law Enforcement Access Field (EES, cryptography)
        
LEARP
        LAN Emulation Address Resolution Protocol (LANE, ARP, ATM), "LE-ARP"
        
LEAS
        LATA Equal Access System
        
LEC
        LAN Emulation Client (LANE, ATM)
        
LEC
        Layered Error Correction (CD)
        
LEC
        Local Exchange Carrier (FCC, LATA, IEC)
        
LECID
        LAN Emulation Client IDentifier (LANE, ATM, LEC)
        
LECS
        Local area network Emulation Configuration Server (ATM, LANE, LEC)
        
LED
        Light-Emitting Diode
        
LEL
        Link, Embed and Launch (UNIX)
        
LEMP
        Lightning ElectroMagnetic Pulse
        
LEN
        Low Entry Networking (IBM, SNA, PU)
        
LEO
        LeitungsEndgeraet, Optisch Mil., Germany
        
LEO
        Link Everything Online (WWW, TUM)
        
LES
        LAN Emulation Server (LANE, ATM)
        
LES
        Line Errored Seconds (DS1/E1, DS3/E3)
        
LF
        Line Feed (ASCII)
        
LF
        Login Facility (DCE)
        
LFA
        Link Field Address (Forth)
        
LFA
        Local Feature Analysis
        
LFAP
        Leight weight Flow Admission Protocol (Cabletron, RFC 2124)
        
LFB
        Linear Frame Buffer (CPU, VESA)
        
LFCC
        Linux Federation for Commercial Customers (Linux)
        
LFE
        Low Frequency Effect (audio)
        
LFN
        Long File Names
        
LFNBK
        Long File Name BacKup (MS)
        
LFO
        Low Frequency Oscillator
        
LFS
        Loopback File System
        
LFSR
        Linear Feedback Shift Register (IC)
        
LGPL
        Lesser General Public License (GPL, GNU)
        
LGPO
        Local Group Policy Object (AD, GPO)
        
LGX
        Linux/GNU/X [distribution] (Yggdrasil, Linux, GNU)
        
LI
        Lawful Interception (ETSI)
        
LIB
        Linear Incremental Backoff (CSMA/CD, BEB)
        
LIC
        Licensed Internal Code
        
LIF
        Low Insertion Force (IC)
        
LIFD
        Last In First Drop
        
LIFE
        Laboratory for International Fuzzy Engineering [research] (MITI)
        
LIFE
        Logistics Interface For manufacturing Environment
        
LIFO
        Last In First Out
        
LIJP
        Leaf Initiated Join Parameter
        
LIKS
        Lietuvos kompiuterininko Sajunga (org., Litauen)
        
LILO
        LInux [boot] LOader (Linux)
        
LIM
        Lotus - Intel - Microsoft (manufacturer)
        
LIMAD
        Linear MAgnetic Drive [technology]
        
LIMDOW
        Laser / Light  Intensity Modulation, Direct OverWrite (MOD)
        
LIMEMS
        Lotus - Intel - Microsoft Expamded Memory Specification (Lotus, Intel, MS, EMS), "LIM EMS"
        
LIP
        Large Internet Packet
        
LIPS
        Logical Inferences Per Second (AI, KI, XPS)
        
LIS
        Logical IP Subnet (RFC 1577, ION)
        
LISA
        Linux Installation & System Administration (Linux, LST)
        
LISP
        LISt Processor (LISP)
        
LISP
        Lots of Isolated Silly Parentheses (LISP, slang)
        
LISUAF
        [thueringer] LandesInformationsSystem Umwelt, Agrar und Forst (UIS), "LIS-UAF"
        
LITA
        Library and Information Technology Association (org., USA)
        
LITTA
        Latvijas Informacijas Tehnologiju un Telekomunikaciju Asociacija (org., Lettland)
        
LIU
        Line Interface Unit
        
LIV
        Link Integrity Verification
        
LIVE
        LInux VErband (Linux, org.)
        
LIVID
        Language Identification and Voice IDentification
        
LIW
        Long Instruction Word (CPU)
        
LKI
        Labor fuer Kuenstliche Intelligenz (org., KI, Hamburg, Germany)
        
LLAP
        Localtalk Link Access Protocol (AppleTalk, LAP)
        
LLATMI
        Lower Layer ATM Interface (ATM)
        
LLB
        Local Location Broker (NCS)
        
LLC
        Logical Link Control (IEEE 802.2, ISO, OSI)
        
LLCSNAP
        Logical Link Control/SubNetwork Access Protocol (LLC, SNAP), "LLC/SNAP"
        
LLN
        Line Link Network
        
LLNL
        Lawrence Livermore National Laboratory (org., USA)
        
LLP
        Link Level Protocol (BTX)
        
LMDS
        Local Multi-point Distribution System
        
LME
        Large Memory Enabled [devices and drivers] (DAC)
        
LME
        Layer Management Entity (OSI)
        
LMFAO
        Laughing My Fucking Ass Off (Usenet, IRC, slang)
        
LMI
        Layer Management Interface (ATM)
        
LMS
        Library Maintenance System (BS2000)
        
LMU
        LAN Manager for Unix (Unix), "LM/U" 
        
LMX
        LAN Manager for uniX (LAN, Unix, MS), "LM/X"
        
LNN
        Lotus Notes Network (Lotus)
        
LOC
        LAN Operations Center (LAN)
        
LOC
        Lines Of Code
        
LOC
        Loss of Cell delineation (UNI, ATM)
        
LOCIS
        Library Of Congress Information System (Internet)
        
LOCT
        Layered Open Crypto Toolkit (RSA, cryptography)
        
LOD
        Level Of Detail (3D)
        
LOF
        Loss of Frame (UNI, ATM, DS3/E3)
        
LOL
        Laughing Out Loud (slang, Usenet, IRC)
        
LOOPS
        LISP Object Oriented Programming System (Xerox, OOP, LISP)
        
LOP
        Loss of Pointer (UNI)
        
LOS
        Local Operating System
        
LOS
        Loss of Signal (UNI, ATM)
        
LOSP
        LOw SPeed channel connector (Cray, I/O)
        
LOV
        List Of Values (DB, Oracle, Java)
        
LOVIS
        LagerOrtVerwaltungs- und InformationsSystem (MBAG)
        
LP
        Line Printer (Unix)
        
LP
        Linear Programming
        
LP
        Logical Partition (LVM)
        
LPB
        [S3] Local Peripheral Bus
        
LPC
        Linear Predictive Coding (voice processing)
        
LPC
        Low Pin Count [interface]
        
LPD
        Line Printer DAEMON
        
LPDA
        Link Problem Determination Aid
        
LPDP
        Line Printer DAEMON Protocol (RFC 1179)
        
LPDU
        Link Protocol Data Unit
        
LPEX
        Live Parsing eXtensible Editor (IBM, OS/2)
        
LPF
        League for Programming Freedom (org.)
        
LPI
        Lines Per Inch
        
LPI
        Linux Professional Institute (Linux, org.)
        
LPP
        Licensed Program Product (IBM)
        
LPR
        Low Priority Request (VUMA)
        
LPS
        Lines Per Second
        
LPS
        Lotus Professional Services (Lotus)
        
LPT
        Line PrinTer
        
LPX
        Low Profile eXtended [motherboard]
        
LQ
        Letter Quality
        
LQM
        Link Quality Monitoring (PPP)
        
LR
        Location Register (LA, GSM, mobile-systems)
        
LRC
        Longitudinal Redundancy Check
        
LRPC
        Lightweight Remote Procedure Calls (OLE)
        
LRS
        Line Repeater Station
        
LRU
        Least Recently Used
        
LRZ
        Leibniz RechenZentrum (org., BADW)
        
LS
        LAN Server (IBM)
        
LSA
        Link State Advertisement (OSPF)
        
LSA
        Lotus Solution Architecture (Lotus)
        
LSAPI
        Licensed Services Application Program Interface (MS, API)
        
LSB
        Least Significant Bit
        
LSB
        Linux Standard Base (Linux)
        
LSDU
        Link Service Data Unit
        
LSE
        Local Subscriber Environment
        
LSF
        Load Sharing Facility
        
LSI
        Large Scale Integration
        
LSI
        Latent Semantic Indexing
        
LSL
        Link Support Layer (ODI)
        
LSM
        Linux Software Map (Linux)
        
LSN
        Logical Sector Numbers (OS-9)
        
LSO
        Linux Standards Organization (org., Linux)
        
LSR
        Leaf Setup Request
        
LST
        Linux Support Team [distribution] (Linux)
        
LSU
        LAN Service Unit (LAN)
        
LT
        Line Termination (ADSL)
        
LT
        Logical Terminal (IBM)
        
LT
        Lower Tester (ISO 9646-1)
        
LTC
        Line Termination Coordinator
        
LTC
        Longitudinal Time Code (video)
        
LTE
        Line Terminating Equipment (SONET)
        
LTERM
        Logical TERMinal (IBM), "LTerm"
        
LTID
        Logical Terminal IDentifier (IBM)
        
LTO
        Linear Tape Open (Streamer, IBM, HP, Seagate)
        
LTPS
        Low Temperature PolySilicon
        
LTPSTFT
        Low Temperature PolySilicon Thin Film Transistor (TFT, LCD)
        
LTSS
        Lawrence TimeSharing System (OS, LLNL)
        
LU
        Logical Unit (NAU)
        
LU62
        Logical Unit 6.2 (IBM), "LU6.2"
        
LUG
        Local Users Group
        
LUN
        Logical Unit Number (SCSI)
        
LUNA
        Leuchtendatei fuer UnfallfluchtNAchforschungen (INPOL)
        
LUNI
        LANE User Network Interface (LANE, ATM)
        
LUT
        Look-Up Table (RAMDAC, FPGA, RL)
        
LV
        Logical Volume (LVM)
        
LV
        Low Voltage
        
LVD
        Low Voltage Differential [technology] (SCSI, Symbois Logic)
        
LVDS
        Low Voltage Differential Signal (TI, NSC)
        
LVE
        Live Video Extension (video)
        
LVM
        Logical Volume Manager (AIX, HP/UX, OSF/1, HDD)
        
LVN
        LandesVerwaltungsNetz (Baden-Wuerttemberg)
        
LVTTL
        Low Voltage Transistor Transistor Level (IC)
        
LW
        Living Worlds (VRML)
        
LWC
        Last Working Configuration (ESCD, PNP, BIOS)
        
LWL
        LichtWellenLeiter (cable)
        
LWP
        Light Weight Process (Sun, OS)
        
LX
        Linear eXecutable (OS/2)
        
LZS
        Lempel-Ziv-Stac [compression]
        
LZSDCP
        [PPP] Lempel-Ziv-Stac - Data Compression Protocol (PPP, RFC 1967), "LZS-DCP"
        
LZW
        Lempel-Ziv-Welch [compression]
        

        
        









        

MAC
        Mandatory Access Control (MLS)
        
MAC
        Media Access Control (ISO, OSI)
        
MAC
        Membership Advisory Committee (ICANN)
        
MAC
        Message Authentication Code (SSL, SRT, cryptography)
        
MACH
        Multilayer ACtuator Head
        
MACID
        Media Access Control IDentifier, "MAC-ID"
        
MACOS
        MACintosh Operating System (Apple, OS), "MacOS"
        
MACS
        Manufacturing Application Control System (SNI)
        
MACS
        MODEM Access Control System (MODEM, DES, cryptography), "M.A.C.S."
        
MACSBUG
        Motorola Advanced Computer Symbolic deBUGger (Motorola)
        
MAD
        Memory Address Driver strength (BIOS)
        
MAD
        Message Address Directory
        
MAD
        Militaerischer AbschirmDienst (mil., org.)
        
MADCAP
        Multicast Address Dynamic Client Allocation Protocol (RFC 2730, Multicast)
        
MADE
        Multimedia Application Development Environment (CWI)
        
MADK
        Microsoft Activex Development Kit (ActiveX, MS)
        
MADT
        Multiple APIC Description Table (ACPI, APIC)
        
MAE
        Macintosh Application Environment (Apple, Sun, HPUX)
        
MAINSAIL
        MAchine INdependent SAIL (SAIL)
        
MAJC
        Microprocessor Architecture for Java Computing [pronounced 'magic'] (Sun, Java)
        
MAJOUR
        Modular Application for JOURnals (EWS, SGML)
        
MAM
        Multi Access Module
        
MAME
        Multiple Arcade Machine Emulator, "M.A.M.E."
        
MAN
        Metropolitan Area Network
        
MAP
        Maintenance Analysis Procedure (IBM)
        
MAP
        Manufacturing Automation Protocol (General Motors)
        
MAP
        Mobile Application Part (MSC, GSM, mobile-systems)
        
MAP27
        Mobile Access Protocol [for MPT 1327] (MPT 1327), "MAP 27"
        
MAPASE
        Mobile Application Part - Application Service Elements (MAP, MSC, GSM, mobile-systems), "MAP-ASE"
        
MAPI
        Messaging Application Program Interface (MS, WOSA, API)
        
MAPTOP
        Manufacturing Automation Protocol/Technical Office Protocol, "MAP/TOP" 
        
MAR
        Microprogram Address Register (IC)
        
MARC
        MAchine Readable Cataloging [record]
        
MAS
        Multi Agent Systems (AI)
        
MAS90
        Mittelstands-Anwendungs-System 90 (IBM)
        
MASC
        Multicast Address-Set Claim [protocol] (RFC 2909, Multicast)
        
MASE
        Message Administration Service Element
        
MASM
        Microsoft ASseMbler (MS, assembler)
        
MAU
        Medium Access Unit
        
MAU
        Medium Attachment Unit (IEEE 802.3, Transceiver)
        
MAU
        Multistation Access Unit (Token Ring, Hub)
        
MAUS
        Muensters Apple User Service (BBS, network), "M.A.U.S."
        
MAW
        Microsoft At Work
        
MAWI
        MAterialWIrtschaft
        
MAX
        MAssively parallel uniX (Cray, OS, MIMD, MPP, Unix)
        
MAX
        Media Access Exchange (Ascend)
        
MB
        MailBox
        
MB
        MegaByte
        
MBAG
        Mercedes-Benz AktienGesellschaft (user)
        
MBCMS
        Mercedes-Benz-Computer-Mikrofilm-System (MBAG), "MB-CMS"
        
MBE
        Molecular Beam Epitaxy (IC; MOSFET)
        
MBPS
        MegaBits Per Second
        
MBR
        Master Boot Record
        
MBS
        Maximum Burst Size
        
MBUS
        Module BUS [standard] (Sun, SPARC), "MBus"
        
MCA
        Micro Channel Architecture (IBM, PS/2)
        
MCA
        Mission Critical Applications
        
MCAD
        Mechanical CAD (AutoCAD, CAD)
        
MCAV
        Modified Constant Angular Velocity
        
MCB
        Memory Control Block (DOS, TPA)
        
MCBF
        Mean Cycle Between Failure
        
MCC
        Manchester Code Converter
        
MCC
        Manchester Computing Centre (Linux)
        
MCC
        Mitteldeutsches Communication Center (Leipzig)
        
MCD
        Mini Client Driver (MS, Windows NT)
        
MCD
        Multimedia Cartridge Drive (Nomai)
        
MCEB
        Military Communications-Electronics Board (org., mil., USA)
        
MCF
        Meta Content Framework / Format (Apple, WWW)
        
MCGA
        Multi Color Graphics Adapter (IBM, PS/2)
        
MCH
        Memory Controller Hub [aka Northbridge] (Intel)
        
MCI
        Measurement Layer Interface (UMA)
        
MCI
        Media Control Interface
        
MCI
        Microwave Communications Incorporated
        
MCL
        Media Communication Lab (org., Uni Boston, USA)
        
MCM
        MultiChip Module (CPU)
        
MCN
        Metropolitan Campus Network
        
MCNE
        Master Certified Netware Engineer (Novell, Netware)
        
MCNS
        ??? [cable modem standard] (org.)
        
MCP
        Master Control Program (OS)
        
MCP
        Merlin Convenience Pack (IDB, OS/2)
        
MCP
        Multiport / Multiprotocol Communication Processor
        
MCPAS
        Master Control Program/Advanced System, "MCP/AS" 
        
MCPC
        Multi Channel Per Carrier
        
MCPS
        Microsoft Certified Product Specialist (MS, ATEC)
        
MCR
        Minimum Cell Rate (UNI, ATM, PCR, ABR)
        
MCS
        Material Control System
        
MCS
        Message Conversion System
        
MCS
        Modulation and Coding Scheme (EGPRS, mobile-systems)
        
MCS
        MultiCast Server
        
MCS
        Multichannel Communications System (Mac)
        
MCS
        Multivender Customer Services (DEC)
        
MCSD
        Microsoft Certified Solution Developer (MS, ATEC)
        
MCSE
        Microsoft Certified System Engineer (MS, ATEC)
        
MCSMP
        Message Conversion System Message Processor (MCS)
        
MCSS
        Mitac Computer Security System (Mitac)
        
MCT
        Microsoft Certified Trainer (MS, ATEC)
        
MCTD
        Mean Cell Transfer Delay (UNI, ATM)
        
MCTS
        Multiple Console Time Sharing System (OS, CAD)
        
MCU
        Management & Cascade Unit (Hub)
        
MCU
        Micro Controller Unit (SIA, RL)
        
MCU
        Multipoint Control Unit
        
MCVA
        Modified Constant Angular Velocity (Optical Disk)
        
MD
        Make Directory (DOS, OS/2)
        
MD
        Management DOMAIN
        
MD
        Mini Disk (Sony)
        
MD2
        Message Digest [algorithm] 2 (RFC 1115/1319)
        
MD4
        Message Digest [algorithm] 4 (RFC 1320)
        
MD5
        Message Digest [algorithm] 5 (RFC 1321)
        
MDA
        Mail Delivery Agent
        
MDA
        Medicated Digest Authentication (HTTP)
        
MDA
        Monochrome Display Adapter (IBM, PC)
        
MDAC
        Microsoft Data Access Components (MS)
        
MDBMS
        Multidimensional DataBase Management System (DBMS, DB)
        
MDBS
        Micro Data Base System (DB)
        
MDC
        Message conversion system directory Component (MCS)
        
MDC
        Meta Data Coalition
        
MDCT
        Modified Discrete Cosine Transformation
        
MDDB
        MultiDimensional DataBase (DB)
        
MDE
        ??? DatenErfassung
        
MDI
        Medium Dependent Interface (ethernet)
        
MDI
        Mobile Data Initiative (org., GSM, mobile-systems)
        
MDI
        Multiple Document Interface (MS, Windows)
        
MDI
        Multiplex Device Interface
        
MDIS
        MetaData Interchange Specification
        
MDK
        MODEM Developers Kit (MODEM, MS)
        
MDL
        Microstation Development Language (CAD)
        
MDRAM
        Multibank Dynamic Random Access Memory (RAM, DRAM, IC)
        
MDRC
        Manufacturing Design Rule Checker
        
MDS
        Manufacturing Design System
        
MDSE
        Message Delivery Service Element
        
MDSP
        Mobile Device Sync Protocol (Lotus)
        
MDT
        Mechanical DeskTop (SGI)
        
MDT
        Message Distribution Terminal
        
MDT
        Mittlere DatenTechnik
        
MDT
        Mountain Daylight Time [-0600] (TZ, MST, USA)
        
ME
        Mapping Entity
        
ME
        Millennium Edition (MS, Windows)
        
MEG
        Mega Evil Grin (slang, Usenet, IRC)
        
MEGA
        MessdatenErfassung und Graphische Auswertung
        
MEI
        Matsushita Electronics Incorporated (manufacturer, Japan)
        
MEL
        Maya Embedded Language
        
MEMS
        Micro-ElectroMechanical System
        
MERS
        Most Economic Route Selection
        
MERT
        Multiple Environment, Real Time (OS)
        
MES
        Manufacturing Execution System
        
MES
        Menue-EntwicklungsSystem (Sinix, SNI)
        
MES
        Minimum European Set (UTF, ISO 10646)
        
MESA
        MetaEmailSearchAgent (WWW, Internet)
        
MESCH
        Multi-WAIS Engine for Searching Commercial Hosts (WAIS, WWW)
        
MESFET
        MEtal Semiconductor Field Effect Transistor (IC, FET)
        
MESH
        Macintosh Enhanced SCSI Hardware (Apple, SCSI)
        
MESI
        Modified - Exclusive - Shared - Invalid (SMP)
        
MESN
        Media Event Status Notification
        
MESZ
        MittelEuropaeische SommerZeit [+0200] (TZ)
        
MET
        Memory Enhancement Technology (HP), "MEt"
        
MET
        Middle European Time [+0100] (TZ, CET, METDST, MEZ)
        
METAL
        Machine Evaluation and Translation Language (Siemens)
        
METDST
        Middle European Time Daylight Saving Time [+0200] (TZ, MET, MEZ)
        
MEZ
        MittelEuropaeische [sommer] Zeit [+0200] (TZ)
        
MF
        Multi Frequency
        
MFAST
        Mwave Folded Array Signal Transform [DSP] (IBM, DSP)
        
MFC
        Microsoft Foundation Classes
        
MFC
        Music Feature Card (IBM, Yamaha, MIDI)
        
MFENET
        Magnetic Fusion Energy NETwork
        
MFG
        Mit Freundlichen Gruessen [= best wishes]
        
MFG
        Multi-Function Gateway
        
MFI
        MainFrame Interactive (IBM)
        
MFII
        Multi-Functional [keyboard] II (IBM)
        
MFIP
        Multi-Function Interoperability Processor
        
MFKS
        MultiFunktionales KonferenzSystem
        
MFLOPS
        Million FLoating-point Operations Per Second (CPU)
        
MFM
        Modified Frequency Modulation
        
MFP
        MultiFunction Product
        
MFS
        Macintosh File System (Apple)
        
MFS
        Message Format Service (IBM, IMS)
        
MFS
        Mobile File Sync (IBM)
        
MFS
        MOSIX File System (MOSIX, DFSA)
        
MFT
        Master File Table (NTFS)
        
MFT
        Multiprogramming with a Fixed number of Tasks (IBM, OS, OS/MFT, OS/MVT)
        
MFV
        MehrFrequenzwahlVerfahren
        
MGA
        Matrox Graphics Adapter (Matrox)
        
MGA
        Monochrome Graphics Adapter
        
MGI
        Multi-Function Interpreter
        
MGM
        Memory Grant Manager (Informix, DB)
        
MH
        Mobile Host (MHP)
        
MH
        Modified Huffman (Fax)
        
MHDL
        MIMIC Hardware Description Language
        
MHEG
        Multimedia and Hypermedia information coding Expert Group (JTC1, ISO)
        
MHP
        [columbia] Mobile Host Protocol
        
MHP
        Multimedia Home Platform (ETSI)
        
MHPCC
        Maui High Performance Computing Center (org., USA)
        
MHS
        Message Handling System (GOSIP, X.400, Novell, SPX, IPX)
        
MHTML
        Messaging HyperText Markup Language (HTML)
        
MHTML
        MIME [e-mail encapsulation of aggregate documents, such as] HTML (MIME, HTML, RFC 2110)
        
MI
        Management Interface
        
MIA
        Missing In Action (DFUe, Usenet, IRC)
        
MIAW
        Movie In A Window
        
MIB
        Management Information Base (OSI, SNMP)
        
MIC
        Media Interface Connector (FDDI, PMD)
        
MIC
        Memory in Cassette (Seagate, EEPROM, Streamer, AIT)
        
MIC
        Message Integrity Check / Code
        
MIC
        Multiple Interface Connection (Kyocera)
        
MICA
        MODEM ISDN Channel Integration (Telebit, MODEM, ISDN)
        
MICE
        Modular Integrated Communications Environment
        
MICO
        MICO Is CORBA (ORB, CORBA, Uni Frankfurt)
        
MID
        Message IDentifier (ATM)
        
MIDI
        Musical Instruments Digital Interface (MIDI)
        
MIDL
        Microsoft Interface Definition Language (NT)
        
MIDP
        Mobile Information Device Profile (J2ME)
        
MIDPEG
        Mobile Information Device Profile Expert Group (Sun, AOL, Motorola, NEC, Nokia, Palm, Samsung, Sharp, ...)
        
MIF
        Module Interconnection Facility (Proteus)
        
MIG
        Mach Interface Generator (Mach)
        
MII
        Media Independent Interface
        
MIL
        Matrox Imaging Library
        
MILNET
        MILitary NETwork (USA, mil., network)
        
MILOS
        Maschinelle Indizierung auf Linguistischer Grundlage fuer OPAC Systeme (OPAC)
        
MILSTAR
        Military Strategic TActical Relay (mil., USA)
        
MILSTD
        Military STandarD (mil., USA), "MIL-STD"
        
MIMD
        Multiple Instruction [stream], Multiple Data [stream] (CPU)
        
MIME
        Multipurpose Internet Mail Extensions (RFC 2045/2046/2047/2048/2049, IETF)
        
MIMOLA
        Machine Independent MicrOprogramming LAnguage (HDL)
        
MIN
        Multistage Interconnection Networks
        
MINC
        Multilingual Internet Names Consortium (org., Internet, DOMAIN)
        
MINISTREL
        Models for INformatIon STorage and REtrievaL (OA, BIS, ESPRIT)
        
MINT
        Mint is Not TOS (Atari), "MiNT"
        
MINT
        Multimedia-kommunikation aif Integrierten Netzen und Terminals
        
MINX
        Multimedia Information Network eXchange
        
MIO
        Memory Input/Output (Motorola)
        
MIO
        Modular Input/Output [architecture] (HP)
        
MIP
        Multimission Interactive Picture
        
MIP
        Multum In Parvo (3D, SAT)
        
MIPS
        Microprocessor without Interlocked Piped Stages
        
MIPS
        Million Instructions Per Second (CPU)
        
MIR
        Maximum Information Rate
        
MIR
        Micro-Instruction Register (IC)
        
MIS
        Management Information System
        
MIS
        Mega Iterations per Second
        
MISD
        Multiple Instruction [stream], Single Data [stream] (CPU)
        
MISS
        Mecklenburg Internet Service System (ISP)
        
MISSI
        Multilevel Information System Security Initiative (org.)
        
MISX
        Metered Services Information eXchange (Internet)
        
MIT
        Management Information Tree
        
MIT
        Massachusetts Institute of Technology (org., USA)
        
MJ
        Modular Jack
        
MKS
        Mortice Kern Systems (manufacturer)
        
MKT
        Multifunktionelles KartenTerminal (CT, ICC)
        
ML
        Mail List
        
ML
        Meta Language
        
MLA
        Mail List Agent
        
MLA
        Micro Lens Array
        
MLC
        MultiLevel Cell (IC, PCMCIA, Flash, Intel)
        
MLE
        MultiLine Entry field (IBM, OS/2)
        
MLI
        Measurement Layer Interface (UMA)
        
MLI
        Multiple Link Interface (ODI)
        
MLIA
        [symposium on] Machine Learning in Information Access (AAAI, AI, conference)
        
MLID
        Multiple Link Interface Driver (ODI, LAN)
        
MLM
        Mailing List Manager [software]
        
MLMA
        Multi-Level Multi-Access (MAC)
        
MLP
        Meridian Lossless Packaging (DVD, audio)
        
MLP
        MultiLink Point-to-Point Protocol (PPP)
        
MLR
        Multi-channel Linear Recording [technology] (Tandberg, Streamer)
        
MLS
        MultiLevel Secure [operating systems / platforms]
        
MLT
        Master Lower Tester (ISO 9646-3, TTCN)
        
MLT3
        MuLTilevel-3 [encoding] (Schneider & Koch, FDDI), "MLT-3"
        
MM
        Media Manager (Novell, Netware, SMS)
        
MM
        Military Message (mil.)
        
MM
        Mobile Management (RR, CM, GSM, mobile-systems)
        
MMA
        Microcomputer Managers Association (org., USA)
        
MMA
        MIDI Manufacturer Association (org., IMA)
        
MMC
        Microsoft Management Console (MS, Windows NT)
        
MMC
        MIDI Machine Control
        
MMC
        MultiMedia Commands (SAM)
        
MMC
        MultiMediaCard
        
MMCD
        MultiMedia Compact Disk (Sony, Philips, CD)
        
MMCDE
        MultiMedia Compact Disk - Erasable (Sony, Philips, CD), "MMCD-E"
        
MMCF
        MultiMedia Communications Forum (org.)
        
MMDO
        Magnetic Modulation Direct Overwrite
        
MMDS
        Multi-channel, Multi-point Distribution System
        
MMF
        Make Money Fast (Usenet, ECP, EMP)
        
MMF
        Memory Mapped File (Windows 95, Windows NT)
        
MMF
        Multimode Fiberoptic cable
        
MMFS
        Manufacturing Message Format Standard (MAP)
        
MMHID
        MultiMedia Human Interface Device
        
MMHS
        Military Message Handling System (mil., MHS)
        
MMI
        Mixed Mode Interpreter (JIT, IBM, Java)
        
MMIO
        Memory Mapped I/O (I/O)
        
MML
        Maker Markup Language (FrameMaker)
        
MMP
        Multilink Multichasis PPP (PPP)
        
MMPM2
        MultiMedia Presentation Manager /2 (IBM, OS/2), "MMPM/2"
        
MMR
        Modified Modified Read (Fax)
        
MMS
        Manufacturing Message Specifications / Standard (MAP, EIA, RS-511, ISO, DIS 9506)
        
MMS
        Maximum Message Size
        
MMS
        Module Making System (VMS)
        
MMS
        Multilevel Mail Server
        
MMS
        Multimedia Message Service
        
MMU
        Mass Memory Unit
        
MMU
        Memory Management Unit
        
MMVF
        MultiMedia Video File [disk] (NEC, DVD)
        
MMWM
        MultiMedia Window Manager (X-Windows)
        
MMX
        MultiMedia eXtensions (Intel, CPU)
        
MNG
        Multiple-image Network Graphics [format]
        
MNOS
        Metal Nitride Oxide Semiconductor (IC)
        
MNP
        Microcom Networking Protocol
        
MO
        Management Object (OSI)
        
MOCS
        Microsoft Official Curriculum Seminar (MS, ATEC, MCSD)
        
MOD
        Magneto-Optical Disk (OD)
        
MODACOM
        MObile DAta COMmunication
        
MODCA
        Mixed Object Document Content Architecture (IBM), "MO:DCA"
        
MODEM
        MOdulator DEModulator
        
MOE
        Measure of Effectiveness
        
MOES
        Molekulare Optisch-Elektrische Schaltungstraeger
        
MOESI
        Modified - Owner - Exclusive - Shared - Invalid (AMD)
        
MOF
        Managed Object Format (CIM, DMTF)
        
MOF
        Meta Object Facility
        
MOLAP
        Multidimensional OnLine Analytical Processing (OLAP)
        
MOLED
        Molecule Organic Light Emitting Display (OLED)
        
MOLI
        Microsoft OnLine Institute (MS)
        
MOLP
        Microsoft Open Licence Pack (MS)
        
MOM
        Message Orientated Middleware (IBM)
        
MONALISA
        MOdelling NAturaL Images for Synthesis and Animation, "MONA LISA"
        
MONET
        high data rate MObile interNET (network)
        
MOO
        MUD Object Orientated (Internet, OOP, MUD)
        
MOP
        Maintenance Operations Protocol (DEC)
        
MOP
        Meta Object Protocol (CLOS)
        
MOP
        Multiple Original Prints
        
MOPS
        Million Operations Per Second
        
MOS
        Master Operating System (OS, Varian)
        
MOS
        Metal Oxide Semiconductor (IC)
        
MOS
        Minimum Operating System (OS, UNIVAC 9200, UNIVAC 9300)
        
MOS
        Multiprogramming Operating System (OS, NCR)
        
MOSES
        Major Open Systems Environment Standards
        
MOSFET
        Metal Oxide Semiconductor Field Effect Transistor (IC, FET)
        
MOSIX
        Multiprocessor ??? Operating System for unIX (Unix, Cluster)
        
MOSP
        Microsoft Online Services Partnership (MSN)
        
MOSPF
        Multicast [extensions to ] Open Shortest Path First [routing] (IP, OSPF, RFC 1584)
        
MOST
        Media Orientated Systems Transport
        
MOST
        Mobile Open Systems Technologies (UK, Uni Lancaster)
        
MOT
        Means of Test
        
MOTIS
        Message-Orientated Text Interchange System (ISO 10021, JTC1)
        
MOTSS
        More Of The Sameold Sameold (Usenet)
        
MOU
        Memorandum Of Understanding (IPOC, TLD, Internet)
        
MOVE
        Microsoft Overlay Virtual Environment (MS)
        
MOVI
        [projekt] MObile VIsualisierung (DFG)
        
MOWORM
        Magneto-Optical Write Once Read Many, "MO-WORM" 
        
MP
        [PPP] Multilink Protocol (MPPP, RFC 1990)
        
MP
        Multi Processor
        
MP
        MultiProtocol
        
MP3
        MPEG audio layer 3 (MPEG, audio, IIS, ISO)
        
MPC
        MPOA Client (MPOA, ATM)
        
MPC
        Multimedia Personal Computer
        
MPD
        Message Preparation Directory
        
MPDA
        MultiPlatform DiskArray
        
MPDU
        Message Protocol Data Unit (PDU)
        
MPE
        Multi-Programming Executive (OS, HP, HP 3000)
        
MPEG
        Motion Picture Expert Group [old term] (MPEG)
        
MPEG
        Moving Picture Expert Group (org., ISO 11172-1, JTC1)
        
MPEXL
        ??? (HP), "MPE/XL"
        
MPI
        Message Passing Interface (SMP, Cluster)
        
MPI
        Multiprocessor Interconnect Bus
        
MPIF
        Message Passing Interface Forum (manufacturer)
        
MPL
        Mozilla Public License (Netscape)
        
MPLS
        Multi-Protocol Label Switching (RFC 3031)
        
MPM
        Metra Potential Method
        
MPM
        Multi-user ??? Program for Microcomputers (CP/M, OS, DR), "MP/M"
        
MPM2
        MultiMedia Presentation Manager/2 (OS/2, IBM), "MPM/2"
        
MPML
        Main Profile @@ Main Level (MPEG), "MP@@ML"
        
MPNET
        Multi-user ??? Program / NETwork (MP/M, CP/NET, OS), "MP/NET"
        
MPNOS
        Multi-user ??? Program / ??? (MP/NET, CP/NOS, OS), "MP/NOS"
        
MPOA
        Multi-Protocol Over ATM (ATM)
        
MPOW
        Multiple Purpose Operator Workstation
        
MPP
        Massive Parallel Processor / Processing (MPP)
        
MPP
        Message Posting Protocol (RFC 1204)
        
MPP
        Message Processing Program
        
MPPC
        Microsoft Point-to-Point Compression (MS, RFC 2118)
        
MPPD
        Multi Purpose Peripheral Device
        
MPPE
        Microsoft Point to Point Encryption (MS, cryptography)
        
MPPP
        Multilink Point-to-Point Protocol (PPP, RFC 1990, MP, Ascend)
        
MPR
        [National Board for Metrology and Testing] (org., Sweden)
        
MPS
        Megabytes Per Second
        
MPS
        MPOA Server (MPOA, ATM)
        
MPS
        MultiPage Signal (Fax)
        
MPS
        MultiProzessor Spezifikation (SMP)
        
MPSX
        Mathematical Programming System eXtended (IBM)
        
MPT
        Ministery of Post and Telecommunications (org., Japan)
        
MPT
        MultiPort Transceiver
        
MPT1327
        ???
        
MPTA
        Multi Protocol Transport Architecture (IBM, SNA)
        
MPTN
        Multi Protocol Transport Networking (IBM)
        
MPTS
        Multi Protocol Transport Services (IBM, MPTN)
        
MPTS2
        Multi Protocol Transport Services / 2 (IBM, OS/2), "MPTN/2" 
        
MPU
        MicroProcessor Unit (SIA, RL)
        
MPU401
        MIDI Processing Unit 401 (Roland, MIDI), "MPU 401"
        
MPW
        Macintosh Programmers Workshop (Apple)
        
MPX
        MultiProgramming eXecutive (IBM, OS, IBM 1800)
        
MPX
        MultiProgramming eXecutive (OS)
        
MQI
        Message Queueing Interface (IBM)
        
MQUIPS
        Million QUality Improvements Per Second
        
MR
        Magneto - Resistive (HDD)
        
MR
        MODEM Ready (MODEM)
        
MR
        Modified Read (Fax)
        
MRA
        Multi Resolutions Analysis
        
MRAM
        Magnetoresistive Random Access Memory (IC, RAM)
        
MRB
        Method Request Broker (OMG)
        
MRBC
        Multiple Resolution Bitmap Compiler (MS, Windows)
        
MRCF
        Microsoft Realtime Compression Format (MS)
        
MRCI
        Microsoft Realtime Compression Interface (MS)
        
MRCS
        Multi-Rate Circuit Switching
        
MRH
        Memory Repeater Hub (Intel)
        
MRJ
        Macintosh / MacOS Runtime for Java (Java, Apple)
        
MRJSDK
        Macintosh Runtime for Java Software Developer Kit (Apple, Java), "MRJ SDK"
        
MRM
        Multi Resolution Meshes (Intel, 3D)
        
MRNET
        Minnesota Regional NETwork (network, USA)
        
MRO
        Mandatory Router Option [flag] (CATNIP)
        
MROC
        Multicommand Required Operational Capability
        
MROM
        ??? Read Only Memory (ROM)
        
MRP
        Material / Manufacturing Resource Planning
        
MRP
        Material Requirement Planning (PPS, CIM)
        
MRS
        Media Recognition System (DAT)
        
MRSE
        Message Retrieval Service Element
        
MRTG
        Multi Router Traffic Grapher
        
MRU
        Maximum Receive Unit [size] (SLIP, PPP)
        
MRU
        Most Recently Used
        
MRX
        MagnetoResistive eXtended [technology] (HDD)
        
MS
        Message Store
        
MS
        Meta Signaling (ATM, ???)
        
MS
        MicroSoft (manufacturer, MS)
        
MS
        Mobile Station (GSM, mobile-systems)
        
MSA
        Management Service Architecture
        
MSAP
        Management Service Access Point (OSI, OSI/RM, SAP)
        
MSAP
        Mini Slotted Alternating Priorities (MAC)
        
MSB
        Most Significant Bit
        
MSC
        MicroSoft C
        
MSC
        Mobile services Switching Center (PLMN, GSM, GPRS, mobile-systems)
        
MSCDEX
        MicroSoft Compact Disk EXtensions (CD)
        
MSCHAP
        MicroSoft Challenge Handshake Authentication Protocol (MS), "MS-CHAP"
        
MSCM
        Multiple Slots on Continuation Mechanism (DQDB)
        
MSCP
        Mass Storage Control Protocol
        
MSCS
        MicroSoft Cluster Server [Wolfpack] (MS, Cluster)
        
MSD
        Most Significant Digit
        
MSDE
        MicroSoft Data Engine (MS, DB)
        
MSDE
        Microsoft SQL Server Desktop Engine (MS, SQL)
        
MSDL
        MicroSoft Download Library (MS)
        
MSDN
        Macintosh Software Distribution Network (FidoNet, Apple)
        
MSDN
        MicroSoft Developer Network (Internet, MS)
        
MSDN
        MicroSoft Developer Network (MS)
        
MSDOS
        MicroSoft Disk Operating System (MS, OS, PC)
        
MSE
        MicroSoft Exchange server (MS)
        
MSEN
        Media Status Event Notification
        
MSFIS
        MicroSoft Fax Information Service (MS)
        
MSFP
        Management Service Focal Point (IBM)
        
MSI
        Medium Scale Integration
        
MSI
        Micro-Star International (manufacturer, Taiwan)
        
MSIE
        MicroSoft Internet Explorer (MS, WWW, MSIE)
        
MSISDN
        Mobile Station ISDN Number (PLMN, GSM, mobile-systems), "MS-ISDN"
        
MSIX
        Metered Services Information eXchange [protocol] (Internet, ISP)
        
MSL
        Maximum Segment Lifetime (TCP/IP)
        
MSL
        Microsoft Software Library (Internet, MS)
        
MSL
        Mirrored Server Link
        
MSM
        Media Support Module (ODI)
        
MSM
        Metal Semiconductor Metal (IC)
        
MSMQ
        MicroSoft Message Queue [server] (MS)
        
MSN
        Microsoft Support Network (Internet, MS)
        
MSN
        Monitoring cell Sequence Number (UNI, ATM)
        
MSN
        Multiple Subscriber Number (Euro-, ISDN)
        
MSNF
        Multiple Systems Networking Facility (IBM)
        
MSOS
        Mass storage Operating System (OS, CDC)
        
MSP
        Media Signal Processor (Samsung, MMX, ARM)
        
MSP
        Message Security Protocol
        
MSP
        Message Send Protocol (RFC 1159)
        
MSP
        Multitasking System Program (OS, Hemenway)
        
MSP7
        Modular System Program /7 (OS, IBM), "MSP/7"
        
MSPI
        M&T Software Partner International [gmbh]
        
MSR
        Machine Specific Register (IC)
        
MSR
        Mess-, Steuer- und Regelungssysteme
        
MSR
        Mobile Support Router (MHP)
        
MSR
        Model Specific Register (Intel, Pentium, IC)
        
MSRN
        Mobile Station Roaming Number (MM, HLR, MS-ISDN, GSM, mobile-systems)
        
MSRPC
        MicroSoft Remote Procedure Call (MS, DCOM), "MS-RPC"
        
MSS
        Maximum Segment Size (TCP, ADSL)
        
MSS
        MIMOLA Software System (MIMOLA)
        
MSSE
        Message Submission Service Element
        
MST
        Mountain Standard Time [-0700] (TZ, MDT, USA)
        
MSVC
        Meta-Signaling Virtual Channel (ATM)
        
MSVC
        MicroSoft Visual C++ (MS)
        
MSW
        Machine Status Word
        
MT
        Machine [assisted] Translation
        
MT
        Mannesmann Tally [gmbh] (manufacturer)
        
MT
        Message Transfer / Type
        
MT
        Mobile Termination (GSM, mobile-systems)
        
MT
        Moluccas Time [+0830] (TZ)
        
MTA
        Mail Transport Agent (SMTP)
        
MTA
        Message Transfer Agent (MTS, OSI, X.400)
        
MTBF
        Mean Time Between Failure
        
MTBRP
        Mean-Time-Between-Parts-Replacement
        
MTC
        Master Test Component (ISO 9646-3, TTCN)
        
MTC
        MIDI Time Code (MIDI)
        
MTD
        Memory Technology Driver (IBM, PC-DOS)
        
MTDA
        Mean Time Data Availability
        
MTDS
        Magnetic Tape Operating System (OS)
        
MTE
        MuTating Engine (Viren), "MtE"
        
MTEC
        Motorola Training and Education Center (org., Chicago)
        
MTF
        Message Text Formats
        
MTF
        Microsoft Tape Format (MS)
        
MTF
        Modulation Transfer Function
        
MTH
        Memory Translator Hub (Intel)
        
MTI
        MIPS Technologies Inc. (manufacturer, SGI)
        
MTJ
        Magnetic Tunnel Junction (MRAM)
        
MTOS
        Magnetic Tape Operating System (OS, Datapoint)
        
MTP
        Message Transfer Part (ISDN, GSM, mobile-systems)
        
MTRR
        Memory Type Range Register (CPU, Pentium Pro, IC)
        
MTS
        Magnetic Tape System (OS, HP, HP 2100)
        
MTS
        Message Transfer System (MHS)
        
MTS
        Michigan Terminal System (OS)
        
MTS
        Microsoft Transaction Server (MS, DB, WSH, COM)
        
MTT
        MailTrusT (cryptography)
        
MTTF
        Mean Time To Failure
        
MTTFF
        Mean Time To First Failure
        
MTTR
        Mean Time to Recovery / Repair / React
        
MTTR
        Mean Time Trouble Repair
        
MTU
        Maximum Transmission Unit (SLIP, PPP, IP, PPPoE)
        
MTU
        Message Transfer Unit
        
MUA
        Mail User Agent
        
MUBIS
        MUltimediales BueroInformationsSystem (OA, BIS, TU Braunschweig), "MuBIS"c
        
MUCK
        Multi-User Chat Kingdom (MUD)
        
MUD
        Multi-User Dungeon (MUD)
        
MUGD
        MUMPS User Group Deutschland (MUMPS, user group), "MUG-D"
        
MUI
        Management User Interface (OMF, UI)
        
MUI
        Multimedia User Interface (SGI, UI)
        
MULDEM
        MULtiplexer-DEMultiplexer
        
MULE
        MULtilingual Enhancement of GNU EMACS (EMACS, GNU)
        
MULTICS
        MULTiplexed Information and Computing Service (OS)
        
MULTOS
        MULtimedia Office Server (OA, BIS, ESPRIT)
        
MUMPS
        Massachusetts general hospital Multi-Programming System
        
MUMPS
        Multi-User Multi-Programming System ??? (OS, DEC)
        
MUPAD
        Multi Processing Algebra Data [tool] (Uni Paderborn, Germany, CAS), "MuPAD"
        
MUSH
        Multi-User Shared Hallucination (MUD)
        
MUSICAM
        Masking-pattern adapted Universal Subband Integrated Coding And Multiplexing (MPEG, Digital audio)
        
MUT
        Master Upper Tester (ISO 9646-3, TTCN)
        
MUTOS
        MultiUser-/multitasking Operating System (GDR, OS)
        
        MUeW          eW MonopolUebertragungsWeg, "MueW"
        
MUX
        MUltipleXer
        
MVA
        Multi Vendor Architecture
        
MVA
        Multidomain Vertical Alignment [technology] (LCD, Fujitsu)
        
MVC
        Model View Controller (Smalltalk, GUI)
        
MVI
        Motion Video Instructions (DEC, CPU, Alpha)
        
MVIF
        Multi-Vendor Interacting Forum (org., IN)
        
MVP
        Most Valuable Professional [bonus program] (MS)
        
MVRCA
        Magnalink Variable Resource Compression Algorithm (PPP, RFC 1975)
        
MVS
        Multiple Virtual Storage (IBM, OS, OS/MVS)
        
MVS
        Multiple Virtual System (OS)
        
MVSESA
        Multiple Virtual Storage/Extended System Architecture (IBM), "MVS/ESA"
        
MVSESASP
        Multiple Virtual Storage/Extended System Architecture System Product (IBM), "MVS/ESA SP"
        
MVSSP
        Multiple Virtual Storage/System Product, "MVS/SP" 
        
MVSTSO
        Multiple Virtual Storage/Time Sharing Option (IBM), "MVS/TSO"
        
MVSXA
        Multiple Virtual Storage/eXtended Architecture, "MVS/XA" 
        
MVT
        Multiprogramming with a Variable number of Tasks (IBM, OS/MVT, OS)
        
MWS
        Management WorkStation
        
MWS
        Matsushita White Skipping (Fax)
        
MX
        Mail eXchange (Unix)
        
MXB
        Multimedia eXension Board (SNI)
        
MXC
        Multimedia eXtension Connector
        
MZ
        Mark Zbikowski (MS-DOS, MCB)
        
MZAP
        Multicast-scope Zone Announcement Protocol (RFC 2776, Multicast)
        

        
        









        

NAARS
        National Automated Accounting Research System (USA)
        
NAB
        National Association of Broadcasters (org., USA)
        
NAB
        Netware Asynchronous Board (Novell, Netware)
        
NABTS
        North American Basic Teletext ? (USA)
        
NAC
        Network Administration Center
        
NAC
        Networks and Communications
        
NAC
        Null Attached Concentrator (FDDI)
        
NACLP
        North American Conference on Logic Programming (USA)
        
NACM
        Networks And Communications Marketing
        
NACS
        National Advisory Committee on Semiconductors (org., USA)
        
NACS
        Netware Asynchronous Communication Server (Novell, Netware)
        
NACS
        Network Access Control System (Netware, DES, cryptography)
        
NACSIS
        National Academic Center for Science Information Systems (org., USA)
        
NACT
        Neural Adaptive Control Technology [project] (NN)
        
NAD
        Network Access Device
        
NADB
        National Archeological DataBase (DB, USA)
        
NAEC
        Novell Authorized Education Center (Novell, Netware)
        
NAG
        National Algorithms Group [ltd] (UK, org.), "NAg"
        
NAG
        Network Architecture Group (org.)
        
NAI
        Netzwerk Arbeitswelt Informatik (manufacturer)
        
NAL
        Netware Application Launcher (Novell, Netware, NAM)
        
NALIS
        Nevada Academic Libraries Information System
        
NAM
        Netware Application Manager (Novell, Netware, NAL)
        
NAMS
        National Association of Multimedia Shareware (org., USA)
        
NAP
        Network Access Point (IN)
        
NAPLPS
        North American Presentation Level Protocol Syntax (BBS)
        
NAPT
        ???
        
NARP
        Non-Broadcast Multiple Access Address Resolution Protocol (RFC 1735)
        
NAS
        Netware Access Services (Novell, Netware)
        
NAS
        Network Application Services (DEC)
        
NAS
        Network Application Support
        
NAS
        Network Attached Storage
        
NASI
        Netware Asynchronous Service Interface (Novell, Netware)
        
NAT
        [IP] Network Address Translator (RFC 1631, IP)
        
NATOA
        National Association of Telecommunications Officers & Advisors (org., USA)
        
NAU
        Network Addressable Unit (IBM, SNA, OSI)
        
NAU
        Network Attachment Unit (GigaB, IP-router)
        
NAUN
        Nearest Active Upstream Neighbour (MAC)
        
NAVNET
        NAVy NETwork (mil., USA, network)
        
NB
        Nota bene (slang, Usenet, IRC)
        
NBCD
        Natural Binary Coded Decimal
        
NBDD
        NetBIOS Datagram Distribution [server] (NETBIOS)
        
NBE
        Not-Below-or-Equal
        
NBFCE
        NETBIOS Frames Control Program (NETBIOS)
        
NBFCP
        [PPP] NETBIOS Frames Control Protocol (PPP, NETBIOS, RFC 2097)
        
NBFM
        Narrow Band Frequency Modulation
        
NBMA
        Non-Broadcast Multiple Access (UNI, ATM)
        
NBNS
        NetBIOS Name Server (NETBIOS)
        
NBP
        Name Binding Protocol (AppleTalk)
        
NBS
        Narrow Band Socket (Intel, Nokia)
        
NBS
        National Bureau of Standards (org., predecessor, NIST)
        
NBT
        NETBIOS on TCPIP (MS)
        
NC
        Network Channel / Connect / Control
        
NC
        Network Co-ordinator (FidoNet)
        
NC
        Network Computer [reference profile] (Apple, IBM, Netscape, Oracle, Sun, Internet)
        
NC
        Norton Commander (Symantec)
        
NC
        Numerical Control
        
NCA
        Network Communications Adapter
        
NCA
        Network Computing Architecture (Oracle)
        
NCA
        Network Control Analysis
        
NCA
        Novell Certification Alliance (Novell, Netware)
        
NCAIR
        National Center for Automated Information Research (org., USA)
        
NCAM
        National Center for Accessible Media (org., USA)
        
NCB
        Network Control Block (LAN)
        
NCC
        Network Control / Coordination Center
        
NCC
        Network Control Computer
        
NCCF
        Network Communications Control Facility (IBM)
        
NCCS
        NASA Center for Computational Sciences (org., NASA)
        
NCD
        Network Computing Devices (manufacturer)
        
NCD
        Norton Change Directory (DOS)
        
NCE
        Nomadic Computing Environment (Tadpole)
        
NCGA
        National Computer Graphics Association (org., USA)
        
NCHPC
        National Consortium for High Performance Computing (org., HPC, USA)
        
NCI
        Network Channel Interface
        
NCI
        Non Coded Information
        
NCIA
        Native Client Interface Architecture (IOS)
        
NCIP
        Novell Certified Internet Professional (Novell, WWW, CNA)
        
NCITS
        National Committee for Information Technology Standards (org., USA)
        
NCL
        Null Convention Logic (CPU)
        
NCMOS
        N-channel [Silicon Gate Reversed] CMOS
        
NCN
        Nixdorf Communications Network
        
NCOHPCC
        National Coordination Office for High Performance Computing and Communications (org., USA, HPC), "NCO/HPCC"
        
NCOS
        Network Computer Operating System (OS, Oracle, Internet)
        
NCOS
        Non-Concurrent Operating System (OS, UNIVAC 9200, UNIVAC 9300)
        
NCP
        Netware Core Protocol (Novell, IPX)
        
NCP
        Network Control Processor
        
NCP
        Network Control Program (BBN, ARPANET)
        
NCP
        Network Control Program / Point (IBM)
        
NCP
        Non-Carbon Paper
        
NCP
        Not Copy-Protected
        
NCPE
        Netware Core Protocol Extension (NCP, Netware, IPX)
        
NCPIE
        National Council on Patient Information and Education (org., USA)
        
NCR
        National Cash Registers (manufacturer, AT&T)
        
NCS
        National Communications System (USA)
        
NCS
        Network Computing System (HP, Apollo)
        
NCS
        Network Control System
        
NCSA
        National Center for Supercomputing Applications (org., USA)
        
NCSC
        National Computer Security Center (org., USA)
        
NCSC
        North Carolina Supercomputing Center (org., USA)
        
NCSI
        Network Communications Service Interface (NMP)
        
NCSL
        National Computer Systems Laboratory (NIST, org., USA)
        
NCSL
        National Conference of Standards Laboratories (org., USA)
        
NCSNDR
        Network Computing System Network Data Representation (HP, Apollo), "NCS NDR"
        
NCSS
        Non Commentary Sources Statements (LOC)
        
NCSS
        Number Crunching Statistical System
        
NCSTRL
        Networked Computer Science Technical Reference Library (WWW)
        
NCT
        Network Control and Timing
        
NCTE
        Network Channel-Terminating Equipment
        
NCTL
        National Computer and Telecommunications Laboratory (org., USA)
        
NDA
        Network Delivery Access
        
NDA
        Non-Disclosure Agreement
        
NDA
        Norddeutsche DatenAutobahn (network)
        
NDBMS
        Network DataBase Management System (DB)
        
NDBS
        Non-standard DataBase System (DB)
        
NDC
        National Destination Code (MS-ISDN, GSM, mobile-systems)
        
NDC
        Network Data Collection
        
NDC
        Node Data Controller (Zenith)
        
NDCC
        Network Data Collection Center
        
NDD
        Norton Disk Doctor [software]
        
NDDL
        Neutral Data Definition Language (DDL)
        
NDE
        NeWS Development Environment
        
NDI
        Network Distributed ISDN [for windows NT] (AVM, ISDN, Windows NT)
        
NDIS
        Network Driver Interface Specification (3COM, MS)
        
NDL
        Network Database Language (DB, 4GL)
        
NDM
        Normal Disconnected Mode (IRDA, IRLAP, NRM)
        
NDMP
        Network Data Management Protocol
        
NDMS
        Netware Distributed Management Services (Novell, Netware)
        
NDP
        Numeric Data Processor
        
NDPA
        Network Problem Determination Application
        
NDR
        Network Data Representation (NCS, DCE)
        
NDR
        Network Data Representation service (DCE/RPC)
        
NDR
        Non-Destructive Read
        
NDRO
        Non-Destructive ReadOut
        
NDS
        Netware Directory Services (Novell, Netware)
        
NDS
        Network Data System
        
NDT
        Net Data Throughput
        
NDT
        Newfoundland Daylight Time (TZ, NFT)
        
NDT
        Non-Destructive Testing
        
NDU
        Network Device Utility
        
NE
        Network Element
        
NEA
        ??? [protocol stack on OSI transport layer]
        
NEAR
        National Electronic Accounting and Reporting
        
NEARNET
        New England Academic and Research NETwork (USA, network), "NEARnet"
        
NEAT
        New Enhanced Advanced Technology (AT)
        
NEAT
        Novell Easy Administration Tool (Novell, Netware)
        
NEC
        National Electrical Code (USA)
        
NEC
        Nippon Electronic Corporation (manufacturer)
        
NED
        NASA Extragalactic Database (DB)
        
NEDO
        New Energy and industrial technology Development Organization (org., Japan)
        
NEFS
        Network Extensible File System, "NeFS" 
        
NEII
        National Engineering Information Initiative (org., USA)
        
NEM
        Nothing Else Matters (slang, Usenet, IRC)
        
NEP
        Never-Ending Program
        
NEREN
        NEbraska Research and Education Network (USA, network)
        
NES
        News Electronic Service
        
NESPINN
        NEurocomputer fuer Spikende Neuronale Netze (TUB)
        
NEST
        Netware Embedded Systems Technology (Novell, Netware)
        
NET
        Network Entity Title
        
NETBEUI
        NETBIOS Extended User Interface (UI)
        
NETBIOS
        NETwork Basic Input Output System (IBM, RFC 1001/1002), "NetBIOS"
        
NETBLT
        NETwork BLock Transfer (IP)
        
NETBT
        NetBIOS over TCP/IP (NETBIOS, TCP/IP), "NetBT"
        
NETCDF
        NETwork Common Data Format, "NetCDF"
        
NETDA
        NETwork Design and Analysis
        
NETPARS
        NETwork Performing Analysis Reporting System
        
NETSS
        National Electronic Telecommunication Surveillance System (USA)
        
NEWS
        Netware Early Warning System (Novell, Netware)
        
NEWS
        Networked Extensible Windowing System (Sun), "NeWS" 
        
NEWT
        NeWS Terminal, "NeWT" 
        
NEXT
        NEw eXtended Technology, "NeXT" 
        
NFA
        Name Field Address (Forth)
        
NFA
        Non-determistic Finite-state Automation
        
NFAIS
        National Federation of Abstracting and Information Services (org., USA)
        
NFAS
        Non Facilities-Associated Signaling (ISDN, PRI)
        
NFR
        Near Field Recording [technology]
        
NFS
        Network Facilities Services
        
NFS
        Network File System (Sun, Unix, RFC 1813)
        
NFSP
        Netware File Service Protocol (Novell, Netware)
        
NFT
        Network File Transfer (DNA, DEC)
        
NFT
        NewFoundland Time [-0330] (TZ, NDT)
        
NGDD
        New Generation Desktop Design (Mitsubishi)
        
NGE
        Not-Greater-or-Equal
        
NGI
        Nederlands Genootschap for Informatica (org., Netherlands)
        
NGIO
        Next Generation Input / Output (I/O)
        
NGS
        Non-Government Standard (USA)
        
NGSB
        Non-Government Standards Body
        
NHRP
        [NBMA] Next Hop Resolution Protocol (X.25, ATM, NBMA, IETF)
        
NHSE
        National HPCC Software Exchange (USA)
        
NI
        Network Interconnect / Interface
        
NI
        Normenausschuss Informationsverarbeitungssysteme (org., DIN)
        
NIA
        Network Information Access
        
NIAS
        Netware Internet Access Server (Novell, Netware)
        
NIC
        Network Information Center (Internet, org.)
        
NIC
        Network Interface Card / Controller
        
NIC
        Numeric Intensive Computing
        
NICAM
        Near-Instantaneously Companded Audio Multiplex (audio)
        
NICD
        NIckel CaDmium [batterie], "NiCd" 
        
NICE
        Network Information and Control Exchange (DECNET)
        
NICOL
        Network Information Center On-Line
        
NICOLAS
        Network Information Center On-Line Aid System
        
NID
        Namespace IDentifier (URN)
        
NIDOS
        NIxdorf Disk Operating System (OS, SNI)
        
NIDR
        Network Information Discover and Retrieval
        
NIDX
        Network Intrusion Detection eXpert system (BELLCORE, XPS)
        
NIE
        Newton Internet Enabler (Apple, PDA)
        
NIFTP
        Network Independent File Transfer Program (FTP)
        
NIHCL
        National Institute of Health [c++] Class Library (PD)
        
NII
        National Information Infrastructure [program] (USA, org.)
        
NIIT
        National Information Infrastructure Testbed (ISH, USA)
        
NIMH
        NIckel Metal Hybrid [batterie], "NiMH" 
        
NIMT
        National Institute for Management Technology (org., Irland)
        
NIPT
        [international symposium on] New Information Processing Technologies (conference, MITI)
        
NIR
        Network Information Registry / Retrieval
        
NIS
        Network Information Service (NSF)
        
NIS
        Network Information System (Unix)
        
NISC
        Network Information and Support Center
        
NISDN
        Narrowband Integrated-Services Digital Network (ISDN), "N-ISDN"
        
NISI
        Network Information Services Infrastructure
        
NISO
        National Information Standards Organization (org., USA)
        
NISS
        National Information on Software and Services (USA)
        
NISSPAC
        NISS Public Access Collections (NISS)
        
NIST
        National Institute of Standards and Technology (org., USA)
        
NISYP
        Network Information System / Yellow Pages, "NIS/yp" 
        
NITF
        National Imagery Transmission Format
        
NITOL
        Norway-net with IT for Open Learning (network)
        
NITS
        Network Independent Transport Service
        
NIU
        Network Interface Unit
        
NIU
        North american ISDN Users (USA, ISDN)
        
NIUF
        North american ISDN Users Forum (USA, user group, ISDN)
        
NJC
        Nordic Journal of Computing (Finland)
        
NJE
        Network Job Entry (BITNET, RSCS)
        
NJE
        Network Job Entry
        
NJSZT
        Neumann Janos SZamitogep-tudomanyi Tarsasag (org., Ungarn)
        
NKS
        Network Knowledge Server
        
NKSR
        Non-Kernel Security Related (Unix)
        
NL
        Network Layer (ISO, OSI)
        
NL
        New Line (ASCII)
        
NL
        Number Lines (Unix)
        
NLB
        Network Load Balancing (MS, Windows)
        
NLDM
        Network Logical Data Manager (IBM)
        
NLE
        Not-Less-or-Equal
        
NLM
        Netware Loadable Module (Novell, Netware)
        
NLP
        Natural Language Processing
        
NLP
        Non-Linear Programming
        
NLP
        Normal Link Pulse (ethernet, LAN)
        
NLPID
        Network Layer Protocol IDentifier (ATM, OSI)
        
NLQ
        Near Letter Quality
        
NLRI
        Network Layer Reachability Information
        
NLS
        Native Language Support (HP)
        
NLS
        Native Language System (OSF)
        
NLS
        Network License Server
        
NLSP
        Netware Link Services Protocol (Novell, Netware, IPX)
        
NLSP
        Network Layer Security Protocol (ISO, IEC, ISO/IEC 11557)
        
NLV
        National Language Version (IBM, OS/2, ...)
        
NM
        Native Mode (PARISC, CM)
        
NM
        Network Management
        
NMA
        Network Management Architecture (SNA)
        
NMAA
        National Multimedia Association of America (org., USA)
        
NMC
        Network Management Center
        
NMCP
        Network Management Communication Protocol
        
NMCS
        National Military Command System (mil., USA)
        
NMEA
        National Marine Electronics Association [protocol] (org., USA, GPS)
        
NMF
        Network Management Forum
        
NMI
        Non-Maskable Interrupt
        
NML
        National Media Laboratory (org., USA)
        
NML
        Natural Mapping Language (XPP, MPP)
        
NML
        Network Management Layer (TMN)
        
NMOS
        Negative-channel Metal-Oxide Semiconductor (IC)
        
NMP
        Network MODEM Program
        
NMPF
        Network Management Productivity Facility (IBM)
        
NMPL
        Netscape/Mozilla Public License (Netscape), "N/MPL"
        
NMS
        Network Management Station / System (Novell, Netware)
        
NMS
        Network Monitoring Station
        
NMSU
        New Mexico State University (org.)
        
NMT
        Nordic Mobile Telephone (mobile-systems)
        
NMU
        Non-Maintainer Upload (Linux, Debian)
        
NMVT
        Network Management Vector Transport
        
NN
        Neural Network (NN)
        
NNI
        Network Node Interface (ATM)
        
NNI
        Network to Network Interface
        
NNS
        Netware Named Services (Novel, Netware)
        
NNSC
        NSF Network Service Center (org., NSF)
        
NNTP
        Network News Transfer Protocol (Internet, RFC 977, Usenet)
        
NNTPS
        Network News Transfer Protocol - Secured ??? (NNTP, Internet, Usenet)
        
NNX
        Network Numbering eXchange
        
NOA
        Net On Air (Internet)
        
NOC
        Network Operations Center
        
NOCS
        Network Operations Center System
        
NODIS
        NSSDC Online Data and Information Service (NSSDC)
        
NOI
        Node Operator Interface
        
NOMA
        National Online Media Association (org., USA)
        
NORGEN
        Network Operations Report GENerator
        
NORMA
        NO Remote Memory Access (OSF/1, Multi-Server)
        
NOS
        Network Operating System
        
NOSA
        Netlabs Open Source Archive
        
NOSAC
        Netlabs Open Source Archive Client (NOSA)
        
NOTIS
        Network Operator Trouble Information System
        
NOW
        Network Of Workstations (Cluster)
        
NP
        Network Performance
        
NP
        No Problem (DFUe, Usenet, IRC)
        
NPA
        Network Performance Analyzer
        
NPA
        Network Printer Alliance (IEEE 1284, IBM, Lexmark, Xerox)
        
NPA
        Network Professional Association (org., USA)
        
NPA
        Numbering Plan Area
        
NPAC
        Northeast Parallel Architectures Center (org., USA, HPC)
        
NPC
        Network Parameter Control
        
NPD
        Network Products Division (Toshiba)
        
NPDA
        Network Problem Determination Application (IBM)
        
NPH
        Non Parse Headers (HTTPD, CGI)
        
NPI
        Network Printer Interface
        
NPL
        Netscape Public License (Netscape)
        
NPL
        Non-Procedural Language
        
NPM
        Network Performance Monitor
        
NPMS
        Named Pipes / Mail Slots (MS)
        
NPSI
        NCP Packet Switching Interface (IBM, NCP)
        
NPSI
        Network Protocol Service Interface
        
NPSS
        NASA Packet Switch System (NASA)
        
NPTN
        National Public Telecomputing Network (network, USA)
        
NPV
        Net Present Value
        
NQS
        Network Queuing System
        
NRC
        National Research Council (org., USA)
        
NRCLSE
        National Resource for Computers in Life Science Education (USA)
        
NREN
        National Research and Education Network (USA, network)
        
NRFD
        Not Ready for Data
        
NRM
        Network Resource Management
        
NRM
        Normal Response Mode (IRDA, IRLAP, NDM)
        
NRN
        National Research Network (USA, network)
        
NRN
        No Reply Necessary (slang, Usenet)
        
NROFF
        New Run-OFF (Unix)
        
NRS
        Name Registration System
        
NRS
        Novell Replication Services (Novell, Netware)
        
NRT
        Non-Requesting Terminal
        
NRTVBR
        Non-RealTime Variable Bit Rate (VBR, ATM), "nrt-VBR"
        
NRZ
        Non-Return-to-Zero [recording]
        
NRZI
        Non-Return-to-Zero, Invert to ones [encoding]
        
NS
        Name Server (DNS, Unix)
        
NS
        National Standard
        
NSA
        National Security Agency (org., USA)
        
NSAI
        National Standards Authority of Ireland (org., Irland)
        
NSAP
        Network Service Access Point (OSI, OSI/RM, SAP)
        
NSAPA
        Network Service Access Point Address (OSI, NSAP)
        
NSAPI
        Netscape Server Application Programmer's Interface (Netscape, WWW, C/S, API)
        
NSB
        National Science Board (USA, org.)
        
NSBD
        Not-So-Bad Distribution (Bell)
        
NSC
        National Security Council (org., USA)
        
NSC
        National SemiConductor (manufacturer)
        
NSC
        Network Service Center
        
NSCA
        National institute for Supercomputing Applications
        
NSD
        National Security Directive (USA)
        
NSE
        Network Support Encyclopedia (Novell)
        
NSEC
        Network Switching Engineering Center
        
NSERC
        Natural Sciences and Research Council (org., USA)
        
NSF
        National Science Foundation (org., USA)
        
NSF
        Norges StandardiseringsForbund (org., Norway)
        
NSFIP
        NextStep Fuer IntelProzessoren, "NSfIP" 
        
NSFNET
        National Science Foundation NETwork (network, USA, Internet), "NSFnet"
        
NSG
        Network Services Group
        
NSI
        Name Service Independent (DCE/RPC, CDS)
        
NSI
        NASA Science Internet (NASA, network)
        
NSIS
        National Schengen Information System (SIS, Europe)
        
NSN
        NASA Science Network (USA, network)
        
NSP
        Name Service Protocol (DNS)
        
NSP
        Native Signal Processing (Intel, CPU)
        
NSP
        Network Service Point
        
NSP
        Network Service Provider
        
NSP
        Network Services Protocol (DNA)
        
NSPMP
        Network Switching Performance Measurement Plan
        
NSPR
        NetScape Portable Runtime (Netscape, API)
        
NSR
        Non-Source Routed
        
NSRD
        National Software Reuse Directory (USA)
        
NSS
        Namespace Specific String (URN)
        
NSS
        Nodal Switching Subsystem (NSFNET)
        
NSS
        Novell Storage System (Novell, Netware)
        
NSSA
        Not So Stubby Area (OSPF, RFC 1587)
        
NSSDC
        National Space Science Data Center (org., USA)
        
NST
        Newfoundland Standard Time (TZ)
        
NST
        North Sumatra Time [+0630] (TZ)
        
NSTAN
        NebenSTellenANlagen (Telekom, CBX), "NStAn"
        
NSTC
        National Science and Technology Council (org., USA)
        
NSTL
        National Software Testing Lab (org., USA)
        
NSTS
        National Secure Telephone System
        
NSTX
        ??? [protocol]
        
NSW
        National Software Works (OS)
        
NT
        Netzwerk Terminator, Network Terminator (ISDN)
        
NT
        New Technology (MS, OS)
        
NT
        Nome Time [-1100] (TZ)
        
NT1
        Network Termination [unit] 1 (ISDN)
        
NTAS
        NT Advanced Server (MS, Windows NT)
        
NTBA
        Network Termination for Basic Access (ISDN)
        
NTC
        National Telecommunications Conference (conference, USA)
        
NTDS
        [Windows] NT Directory Services (MS, Windows NT, DS)
        
NTE
        Network Terminal Equipment
        
NTFS
        [windows] New Technology File System
        
NTIA
        National Telecommunications and Information Administration / Agency (org., USA)
        
NTK
        Need-To-Know (slang, Usenet, IRC)
        
NTK
        Newton ToolKit (Apple)
        
NTLM
        [Windows] NT LAN Manager (MS, Windows NT, LAN)
        
NTN
        National Telecommunications Network
        
NTO
        Network Terminal Option
        
NTP
        Network Time Protocol (Internet, RFC 1119/1305)
        
NTS
        Network Technical Support
        
NTS
        Network Test System
        
NTS
        New Typesetting System (TeX, DANTE)
        
NTS2
        Network Transport Services /2 (IBM), "NTS/2"
        
NTSA
        Netware Telephony Services Architecture
        
NTSC
        National Television Standards Committee (org., USA)
        
NTSC
        Never The Same Color (slang)
        
NTSE
        [Windows] NT Server / Enterprise edition (MS, Windows NT), "NTS/E"
        
NTT
        Nippon Telephone & Telegraph (org., Japan)
        
NUA
        Network User Address
        
NUI
        Network User Identification (Datex-P)
        
NUISSH
        Natur- und UmweltInformationsSystem Schleswig-Holstein (UIS), "NUIS-SH"
        
NUMA
        Non Uniform Memory Access (SMP)
        
NURB
        Non Uniform Rational B-spline
        
NURBS
        Non-Uniform Rational B-Spline (CAD, Animation)
        
NUS
        National University of Singapore (org.)
        
NUTEK
        [National Board for Industrial and Technical Development] (org., Sweden)
        
NVDM2
        NetView Distribution Manager /2 (OS/2, IBM), "NVDM/2"
        
NVN
        National Videotex Network (USA, network)
        
NVP
        Network Voice Protocol
        
NVRAM
        Non-Volatile Random Access Memory (RAM, IC)
        
NVS
        NachrichtenVermittlungsSystem (INPOL)
        
NVT
        Network Virtual Terminal (Telnet, Internet)
        
NWCS
        Netware Workstation Compatible Service (Netware, Windows NT)
        
NWIP
        NetWare Internet Protocol (Novell, Netware)
        
NWNET
        NorthWestern states NETwork (network, USA), "NWNet"
        
NWO
        NetWork Operator (ETSI, ETSI 201 671)
        
NYSERNET
        New York State Education and Research NETwork (network, USA), "NYSERNet"
        
NZCS
        New Zealand Computer Society (org., Neuseeland)
        
NZT
        New Zealand Time [+1130] (TZ)
        
NZUSUGI
        New Zealand Unix System User Group, Inc. (org., Unix, user group)
        

        
        









        

OA
        Object Adapter (ORB, IDL)
        
OA
        Office Automation
        
OA
        Open Access (SPI, DB)
        
OAA
        Open Arcade Architecture (Intel)
        
OACIS
        Oregon Advanced Computing InStitute (org.)
        
OAD
        Open Architecture Driver (Iomega)
        
OADG
        Open Architecture Development Group (org.)
        
OAG
        Online Airline Guide (CIS)
        
OAG
        Open Application Group (org., USA)
        
OAI
        Open Applications Interface
        
OAK
        Object Application Kernel (Java, predecessor, Sun)
        
OAM
        Operations, Administration and Management [cell] (ATM)
        
OARNET
        Ohio Academic Resources NETwork (network, USA), "OARnet"
        
OAS
        Office Automation System
        
OASF
        Office Automation System Facilities (OA)
        
OASIS
        Online Application System Interactive Software
        
OASIS
        Open And Secure Information Systems (Eureka)
        
OASYS
        Office Automation SYStem
        
OATS
        Office Automation Technology and Services (OA)
        
OAW
        Optically Assisted Winchester (HDD, Seagate)
        
OBAK
        OBjektAbbildungskatalog (ATKIS)
        
OBD
        Online Bugs Database (Sun, DB)
        
OBEX
        OBject EXchange (WordPerfect)
        
OBS
        Online Book Store (Internet, WWW)
        
OBST
        OBject management system of STONE (STONE)
        
OBTWIAVBP
        OBligatory The World Is A Very Big Place (DFUe, Usenet, IRC), "ObTWIAVBP"
        
OC
        Object Class (OOP)
        
OC1
        Optical Carrier level 1 [51,48 Mbps] (SONET), "OC-1"
        
OC12
        Optical Carrier level 12 [622,08 Mbps] (SONET), "OC-12"
        
OC24
        Optical Carrier level 24 [1244,16 Mbps] (SONET), "OC-24"
        
OC3
        Optical Carrier level 3 [155,52 Mbps] (SONET), "OC-3"
        
OC48
        Optical Carrier level 48 [2488,32 Mbps] (SONET), "OC-48"
        
OCC
        Operations Control Center
        
OCC
        Other Common Carrier
        
OCCA
        Open Cooperative Computing Architecture
        
OCD
        Out-of-Cell Delineation (UNI)
        
OCE
        Open Collaborative Environment (Apple)
        
OCF
        Open Computing Facility
        
OCG
        Oestereichische Computer Gesellschaft (org., Austria)
        
OCL
        Open Content License (OPL)
        
OCL
        Operation Control Language
        
OCL
        OS/2 inside Class Library (OS/2)
        
OCLC
        Online Computer Library Center (org., Internet, USA)
        
OCO
        Object Code Only (OOP)
        
OCPA
        Open Content Platform Association (org., Amiga, Sharp, JVC, Kyocera, ...)
        
OCR
        Optical Character Recognition
        
OCS
        Object Compatibility Standard (Motorola)
        
OCS
        Open Cabling System
        
OCSP
        Online Certificate Status Protocol
        
OCX
        OLE Control eXtensions (MS)
        
OD
        Optical Disk
        
ODA
        Office Document Architecture [protocol] (RFC 1197, ISO 8613, JTC1, ECMA)
        
ODA
        Open Document Architecture (CCITT T.410)
        
ODAPI
        Open Database Application Programming Interface (Borland, DB, API), "Odapi"
        
ODBC
        Open DataBase Connectivity (WOSA, DB, API)
        
ODBMS
        Object orientated Database Management System (DBMS, DB)
        
ODC
        Optical Disc Corporation (manufacturer)
        
ODD
        Operator Distance-Dialing
        
ODE
        Object Database and Environment (AT&T, DB)
        
ODE
        Online Data Entry
        
ODETTE
        Organization for Data Exchange by Tele-Transmission in Europe (org., Europe)
        
ODF
        Opendoc Development Framework (Apple, OpenDoc)
        
ODF
        Opendoc Part Framework (OpenDoc)
        
ODI
        Open Data link Interface (Novell)
        
ODI
        Open Device Interconnect
        
ODIA
        Object ??? (Apple, ALOE)
        
ODIF
        Office Document Interchange Format (ISO 8613, ASN.1, ODA)
        
ODIN
        Optimale Datenmodelle und algorithmen fuer Ingenieur- und Naturwissenschaften [auf hochleistungsrechnern] (Uni Karlsruhe, Germany, SNI)
        
ODINSUP
        Open Data link Interface - Network driver interface specification SUPport (ODI, NDIS)
        
ODISS
        Optical Digital Image Storage System
        
ODK
        Office Develoment Kit
        
ODL
        Object Description Language
        
ODL
        Open Document Language (ODA, SGML)
        
ODLI
        Open Data Link Interface
        
ODM
        Object Database Manager (AIX, IBM)
        
ODM
        Original Design Manufacturer
        
ODMA
        Open Document Management API (API)
        
ODMG
        Object Database Management Group (org., DB)
        
ODP
        Open Directory Project (WWW, Netscape)
        
ODP
        Open Distributed Processing (ISO)
        
ODP
        OverDrive Processor (Intel)
        
ODPR
        OverDrive Processor Replacement (Intel)
        
ODR
        Ontrack Data Recovery (Ontrack, Software, Netware)
        
ODR
        Optimized Dynamic Routing (SNI)
        
ODS
        Offenes Deutsches Schulnetz (network)
        
ODS
        Office Dialog System (OA)
        
ODS
        Open Data Services
        
ODS
        Optical Data Systems [inc.] (manufacturer)
        
ODS
        Output Delivery Database
        
ODS
        Overhead Data Stream
        
ODSI
        Open Directory Service Interfaces (MS, Windows NT)
        
ODT
        Online Debugging Technique
        
ODT
        Open DeskTop (SCO, GUI)
        
OE
        Outlook Express (MS, Internet)
        
OEB
        Open eBook [standard] (MS, NuvoMedia, ...)
        
OECOS
        Organizational Engineering for Communications and Organizational Systems (SNI, OA)
        
OEM
        Original Equipment Manufacturer
        
OEP
        Operand Execution Pipelines (Motorola, CPU)
        
OES
        Olivetti EntsorgungsService (Olivetti)
        
OF
        Overflow Flag (assembler)
        
OFA
        Optimal Flexible Architecture (Oracle)
        
OFC
        Open Financial Connectivity (MS, banking)
        
OFDM
        Orthogonal Frequency Division Multiplexing (FDM)
        
OFFIS
        Oldenburg Forschungsinstitut Fuer Informatikwerkzeuge und -Systeme (org., Uni Oldenburg)
        
OFS
        Object File System
        
OFS
        Output Field Separator (AWK)
        
OFTA
        OFfice of the Telecommunications Authority (org., Hongkong)
        
OFTP
        ODETTE File Transfer Protocol (ODETTE)
        
OFX
        Open Financial eXchange (banking, Intuit, MS, Checkfree, USA)
        
OGRAN
        OpenGate - Router Access Node ??? (RND), "OG-RAN"
        
OH
        Off-Hook (MODEM)
        
OHCI
        ? Host Controller Interface (USB, Compaq, OPTI, Apple, UHCI)
        
OIA
        Operator Information Area (IBM)
        
OIC
        Oh, I See (DFUe, Usenet, IRC)
        
OID
        Object IDentifier (OSI)
        
OIDL
        Object Interface Definition Language
        
OIDP
        Oracle Internet Development Pack (Oracle, Internet)
        
OIF
        Outgoing InterFace (PIM, IIF, Multicast)
        
OII
        Operations-Intelligence Interface (mil.)
        
OIIC
        Optically Interconnected Integrated Circuits [project] (ESPRIT)
        
OIL
        Operator Identification Language (ELI)
        
OIM
        Open Information Model
        
OIP
        Open Internet Platform (Caldera, Linux, SCO)
        
OIW
        Open Information Warehouse (SAP, R/3)
        
OIW
        OSI Implementors Workshop (OSI)
        
OLAP
        OnLine Analytical Processing (DB)
        
OLE
        Object Linking and Embedding
        
OLED
        Organic Light Emitting Display (OLED)
        
OLEDS
        Object Linking and Embedding Directory Services (ODSI, MS), "OLE DS"
        
OLEO
        Open Linking and Embedding of Objects (OLE, OpenDoc)
        
OLEP
        Organic Light-Emitting Polymer [display]
        
OLI
        Originating Line Information
        
OLIS
        Oxford Library Information System
        
OLIT
        OpenLook Interface Toolkit (OpenLook)
        
OLIVR
        OnLine Interactive Virtual Reality, "OLiVR"
        
OLLI
        OnLine Library Information
        
OLM
        OnLine Monitor
        
OLMC
        Output Logic Macro Cell (GAL)
        
OLPS
        OnLine Programming System
        
OLRT
        OnLine Real-Time
        
OLS
        Online Library System
        
OLTEP
        OnLine Test Executive Program
        
OLTM
        Optical Line Terminating Multiplexer, "O-LTM" 
        
OLTP
        OnLine Transaction Processing
        
OLWM
        OpenLook Window Manager (OpenLook)
        
OM1
        Open MPEG consortium 1 (org., MPEG), "OM-1"
        
OMA
        Object Management Architecture (OMG)
        
OMC
        Operation and Maintenance Center (PLMN, GSM, mobile-systems)
        
OME
        Open Messaging Environment (Novell)
        
OMF
        Object Management Framework (DME)
        
OMF
        Object Module Format (IBM, MS)
        
OMF
        Open Media Framework (org.)
        
OMFI
        Open Media Framework Interchange (OMF)
        
OMG
        Object Management Group (IBM, HP, DEC, Tandem, Sun, org.)
        
OMI
        Open Messaging Interface
        
OMISTN
        Optical Mode Interface SuperTwisted Nematic (LCD), "OMI-STN" 
        
OMN
        Open Network Management
        
OMR
        Optical Mark Reader (Fax)
        
OMR
        Optical Mark Recognition
        
OMS
        Object Management System
        
OMS
        Open Music System (MIDI, Opcode Systems)
        
OMT
        Object Management Technique (Westmount, CASE)
        
OMT
        Object Modelling Technique (CASE)
        
ONA
        Open Network Architecture
        
ONAC
        Operations Network Administration Center
        
ONAL
        Off Network Access Line
        
ONC
        Open Network Computing (Sun)
        
ONCXDR
        Open Network Computing eXternal Data Representation (Sun), "ONC XDR" 
        
ONE
        Open Network Environment (Netscape)
        
ONI
        Operator Number Identification
        
ONIX
        ONline Information eXchange [guidelines]
        
ONMS
        Open-Network Management System
        
OO
        Object Orientated
        
OOA
        Object Orientated [system] Analysis (OOP)
        
OOAD
        Object Orientated Analysis and Design (OOP)
        
OOCTG
        Object Orientated COBOL Task Group (CODASYL, org., OOP)
        
OOD
        Object-Oriented Design
        
OODB
        Object Oriented Data Base (OOP, DB)
        
OODBMS
        Object Orientated Database Management System (DBMS, DB)
        
OODL
        Object Orientated Dynamic Language (OOP)
        
OOF
        Office of The Future (OA)
        
OOF
        Out of Frame (DS3/E3)
        
OOL
        Object-Oriented Language (OOP)
        
OOL
        Open Objects Library (OS/2)
        
OOM
        Object-Oriented Methodology (OOP)
        
OOM
        Out of memory
        
OOP
        Object Orientated Programming
        
OOPL
        Object-Oriented Programming Language (OOP)
        
OOPS
        Object Oriented Program Support (OOP)
        
OOPS
        Object-Oriented Programming System (OOP)
        
OOPSLA
        [conference on] Object Orientated Programming Systems, Languages and Applications (ACM, OOP, conference)
        
OOPSTAD
        Object Orientated Programming for SmallTalk Application Development association (org., OOP)
        
OOS
        Object-Oriented Systems
        
OOS
        Out-Of-Sequence
        
OOSA
        Object Orientated System Analysis (OOP)
        
OOSH
        Object-Oriented SHell (OOP, Shell)
        
OOT
        Object-Oriented Technology (OOP)
        
OP
        Original Poster (slang, Usenet)
        
OPA
        Open Publishing Architecture
        
OPAC
        Online Public Access Catalogue (Internet)
        
OPC
        OLE for Process Control (OLE)
        
OPC
        OpenGL Performance Characterization [project group] (OpenGL, org.)
        
OPC
        Optical Proximity Correction
        
OPC
        Organic Photo Conductor
        
OPC
        Overall Performance Category
        
OPCR
        Original Program Clock Reference
        
OPDU
        Operation Protocol Data Units
        
OPEN
        Open Protocol Enhanced Networks
        
OPENGL
        OPEN Graphics Language (OpenGL), "OpenGL"
        
OPENHCI
        Open Host Controller Interface (USB), "OpenHCI"
        
OPI
        Open Prepress Interface (DTP)
        
OPK
        OEM Pre-installation Kit (MS, Windows, OEM)
        
OPL
        Open Publication License (OCL)
        
OPL
        Organizer Programming Language (Psion, PDA)
        
OPM
        Operations-Per-Minute
        
OPS
        Operations Per Second (CPU)
        
OPS
        Oracle Parallel Server (Oracle)
        
OPSEC
        Open Platform for Secure Enterprise Connectivity (org., manufacturer, IDS)
        
OPT
        Open Protocol Technology
        
OQL
        Object Query Language (ODMG)
        
OR
        Originator / Recipient (X.400, MOTIS), "O/R"
        
ORAIS
        Opportunities and Risks of Artificial Intelligent Systems (conference, GI)
        
ORB
        Object Request Broker (OMA, OMG, CORBA, ORB)
        
ORCA
        Online Resource Control Aid
        
ORDBMS
        Object Relational Database Management System (DBMS, DB)
        
ORK
        Office Resource Kit (MS, Windows)
        
ORM
        Optical Remote Module
        
OROM
        Optical Read Only Memory (ROM), "O-ROM" 
        
ORS
        Output Record Separator (AWK)
        
ORT
        Ongoing Reliability Test
        
OS
        Operating System
        
OS2
        Operating System /2 (IBM, OS), "OS/2"
        
OS200
        Operating System 200 (Honeywell), "OS/200"
        
OS2000
        Operating System 2000 (Honeywell), "OS/2000"
        
OS3
        Oregon State Open Shop Opearating System (OS, CDC 3300), "OS-3"
        
OS32MT
        Operating System /32 - Multitasking Time (OS, Interdata), "OS/32-MT"
        
OS32ST
        Operating System /32 - Serial Time (OS, Interdata), "OS/32-ST"
        
OS360
        Operating System /360 (IBM, OS), "OS/360"
        
OS4
        Operating System /4 (OS, UNIVAC 9700), "OS/4"
        
OS400
        Operating System /400 (IBM, OS), "OS/400"
        
OS7
        Operating System /7 (OS, UNIVAC 9700), "OS/7"
        
OS700
        Operating System /700 (OS, Honeywell), "OS/700"
        
OS8
        Operating System /8 (OS, DEC, PDP 8), "OS/8"
        
OS9
        Operating System - 9 (Microware, OS), "OS-9"
        
OSA
        Object System Adaptor (SOM)
        
OSA
        Office Systems Administrator (OA)
        
OSA
        Open Scripting Architecture (Apple, OS/2)
        
OSAC
        Operator Services Assistance Center
        
OSAK
        Open Systems Application Kernel
        
OSAM
        Overflow Sequential Access Method (SAM)
        
OSAR
        Optical Storage and Retrieval
        
OSC
        Ohio Supercomputer Center (org., USA)
        
OSCAR
        OnScreen Configuration & Activity Reporting (Apex)
        
OSCRL
        Operating System Command Response Language
        
OSD
        OnScreen Display
        
OSD
        Open Software Description [manifest / standard] (MS, Marimba, XML, DU, DUP, MSIE)
        
OSDL
        Open Source Development Lab (org.)
        
OSDN
        Open Source Development Network (Open-Source, Network)
        
OSDS
        Operating System for Distributed Switching
        
OSE
        Open Software / System Environment
        
OSEIA
        Open System Environment profile for Imminent Acquisitions (OSE), "OSE/IA"
        
OSF
        Open Software Foundation (HP, DEC, IBM, org.)
        
OSF
        Operations System Function (IN)
        
OSF
        Oppose Sun Forever [ aka Open Software Foundation] (slang, org.)
        
OSF1
        Open Software Foundation [system] /1 (OSF, OS, DEC), "OSF/1"
        
OSG
        Open Systems Group (org.)
        
OSI
        Open Systems Interconnection (ISO 9646-1)
        
OSICS
        OSI Communication Systems (OSI)
        
OSID
        Origination Signaling IDentifier
        
OSINLCP
        [PPP] OSI Network Layer Control Protocol (OSI, PPP, RFC 1377)
        
OSIRM
        Open Systems Interconnection/Reference Model (ISO), "OSI/RM" 
        
OSKA
        ObjektSchluesselKAtalog (ATKIS)
        
OSM
        Operating system Service Module (I2O)
        
OSM
        Optical Storage Manager (ARMS)
        
OSME
        Open Systems Message Exchange
        
OSMFT
        Operating System / Multiprogramming with a Fixed number of Tasks (OS, IBM S/360), "OS/MFT"
        
OSMVS
        Operating System / Multiple Virtual Space (OS, IBM,  S/370, OS/MVT, successorr, OS/VS-2), "OS/MVS"
        
OSMVT
        Operating System / Multiprogramming with a Variable number of Tasks (OS, IBM, S/360, S/370), "OS/MVT"
        
OSN
        Office System Node (IBM, DIA, OA)
        
OSN
        Open Systems Network
        
OSO
        OverScan Operation (VXA, Streamer)
        
OSP
        Optical Storage Processor
        
OSP
        OrganisationStrukturPlan
        
OSPCP
        Operating System / Primary Control Program (IBM, OS, OS/360, predecessor), "OS/PCP"
        
OSPF
        Open Shortest Path First [protocol / routing] (Internet, IGP, RFC 1583)
        
OSPM
        Operating System directed [configuration and] Power Management
        
OSQL
        Object-Structured Query Language (DB, SQL, OODBMS)
        
OSR
        Optical Scanning Recognition
        
OSRT
        Operating System / Real Time (OS, Destek Group), "OS/RT"
        
OSS
        Operator Service System
        
OSS
        Open Source Software
        
OSSVS
        Operating System / Single Virtual Space (OS, IBM, S/370, OS/VS2), "OS/SVS"
        
OSTA
        Optical Storage Technology Association (org.)
        
OSTC
        Open System Test Consortium (org., OSTC)
        
OSTP
        Office of Science and Technology Policy (org., USA)
        
OSVS1
        Operating System / Virtual System - 1 (OS, IBM,  S/370), "OS/VS-1"
        
OSVS2
        (IBM, MVS), "OS/VS2"
        
OSVS2
        Operating System / Virtual System - 2 (OS, IBM, S/370), "OS/VS-2"
        
OSWL2
        OS-9 Windows / Level 2, "OSW/L2" 
        
OSWS
        Operating System Work Station
        
OT
        Object Technology
        
OT
        Off Topic (slang, Usenet)
        
OT
        Open Transport (Apple)
        
OTA
        Office of Technology Assessment (org., IBM, HP, AEG, AT&T, SNI, ...)
        
OTDR
        Optical Time DOMAIN Reflectometer (cable)
        
OTM
        Object Transaction Monitor (COM, MTS)
        
OTOH
        On The Other Hand (slang, Usenet, IRC)
        
OTP
        One Time Password
        
OTP
        One Time Programmable [chip] (IC)
        
OTPPP
        Open Transport/Point-to-Point Protocol (Apple, OT, PPP), "OT/PPP"
        
OTPROM
        One Time Programmable Read Only Memory (ROM, IC)
        
OTS
        Office TeleSystem (OA)
        
OU
        Organizational Unit (MS, Windows NT, AD)
        
OUCL
        Oxford University Computing Laboratory
        
OUG
        Occam User Group (org., user group)
        
OUI
        Organization Unique Identifier (IEEE)
        
OUI
        Organizational Unit Identifier
        
OUM
        Ovonic Unified Memory (ECD)
        
OUTWATS
        OUTward Wide Area Telephone Service
        
OVID
        Object, View, and Interaction Design
        
OVST
        OrtsVermittlungsSTelle (Telekom)
        
OWF
        Object World Frankfurt (fair)
        
OWG
        Optical WaveGuide (LWL)
        
OWL
        Object Windows Library (Borland, API)
        
OWL
        Open Windows Library (API)
        
OWORM
        Optical Write Once Read Many, "O-WORM" 
        

        
        









        

P2CC2P
        PCI to CPU / CPU tp PCI [concurrency] (BIOS, PC, PCI, CPU), "P2C/C2P"
        
P2P
        Peer to Peer [net]
        
P3P
        Platform for Privacy Preferences (WWW)
        
PA
        Precision Architecture (HP)
        
PABX
        Private Automatic Branch eXchange
        
PAC
        Privilege Attribute Certificate (DCE)
        
PACE
        Priority Access Control Enabled (3Com, ethernet)
        
PACER
        Public Access to Court Electronic Records
        
PACS
        Picture Archiving and Communications Systems
        
PACS
        Public-Access Computing Systems
        
PACT
        Partnership in Advanced Computing Technologies (org. UK)
        
PACT
        Personal Air Communications Technology, "pACT"
        
PACT
        Production Analyses Control Technique
        
PACX
        Private Automatic Computer eXchange
        
PAD
        Packet Assembling Disassembling (CCITT, X.3, X.28, X.29, PSDN)
        
PADS
        Programmer's Advanced Debuging System
        
PAE
        Physical Address Extension (Intel, Pentium, PAE)
        
PAEB
        Pan American EDIFACT Board (org., EDIFACT), "PA/EB"
        
PAEB
        Pan American EDIFACT Board (UN/EDIFACT)
        
PAI
        Process After Input (R/3)
        
PAL
        Paradox Application Language (Borland, DB)
        
PAL
        Phase Alternating Line
        
PAL
        Privileged Architecture Library (DEC, Alpha)
        
PAL
        Programmable Array Logic
        
PALCD
        Plasma Addressable Liquid Crystal Display (LCD)
        
PAM
        Paging Area Memory
        
PAM
        Pluggable Authentication Module (Linux, LISA)
        
PAM
        Primary Access Method (BS2000)
        
PAM
        Programmable Attribute Maps (DRAM, PCI)
        
PAM
        Pulse Amplification Modulation
        
PAML
        Publicly Accessible Mailing Lists (Internet, BBS)
        
PAN
        Personal Account Number
        
PANDORA
        Preserving and Accessing Networked Documentary Resources of Australia
        
PANIX
        Public Access internet/uNIX [system] (Unix, Internet, network)
        
PAP
        Password Authentication Protocol (RFC 1334)
        
PAP
        Printer Access Protocol (AppleTalk)
        
PAP
        ProgrammAblaufPlan (DIN 66001)
        
PAPI
        PC voice API (API, PC)
        
PAR
        Positive Acknowledgement with Retransmission [protocols]
        
PAR
        Project Authorization Request (IEEE)
        
PARC
        Palo Alto Research Center (org., USA, Xerox)
        
PARISC
        Precision Architecture, Reduced Instruction Set Computing (RISC, HP), "PA-RISC"
        
PARLE
        [conference on] Parallel ARchitecture and Languages Europe (ECRC, conference)
        
PARTS
        Parts Assembly and Reuse Tool Set (Visual Smalltalk)
        
PAS
        Publicly Available Specifications (ISO)
        
PAS2
        Personal Application System /2 (IBM, DB2/2), "PAS/2"
        
PASC
        Portable Application Standards Committee (org., IEEE)
        
PAT
        Port and Address Translation (IOS, Cisco, LAN, IP)
        
PAUSE
        PERL Authors Upload SErver (PERL, CPAN)
        
PAWS
        Protection Against Wrapped Sequence space (TCP, satellite)
        
PAX
        Pixel Addressing eXtensions (Intel, RISC, CPU)
        
PAX
        Portable Archive eXchange (SCO, Unix)
        
PAX
        Private Automatic eXchange
        
PB
        Pipeline Burst [cache]
        
PBC
        Peripheral Bus Computer
        
PBE
        Prompt By Example
        
PBI
        Pacific Bell Internet (ISP)
        
PBI
        Phone Based Interface
        
PBM
        Play By Mail [game]
        
PBO
        Process Before Output (R/3)
        
PBX
        Private Branch eXchange (Nebenstellenanlage)
        
PC
        Personal Computer
        
PC
        Printed Circuit (IC)
        
PC
        Priority Control
        
PC
        Protocol Control
        
PC
        Punched Card
        
PC97
        Personal Computer 97 (MS), "PC 97"
        
PCA
        Policy Certification Authority (DFN, PGP)
        
PCA
        Power Calibration Area (CD)
        
PCAT
        Personal Computer - Advanced Technology, "PC-AT"
        
PCB
        Printed Circuit Board
        
PCB
        Process Control Block (BS2000)
        
PCB
        Program Communication Block (IBM)
        
PCB
        Protocol Control Block (TCP)
        
PCC
        Portable C Compiler
        
PCCA
        Personal Computer Communications Associations (org., USA)
        
PCD
        Photo CD (Kodak, CD)
        
PCD
        Process Control Device
        
PCDA
        Program Controlled Data Acquisition
        
PCDOS
        Personal Computer DOS (OS, DOS, IBM, PC), "PC-DOS" 
        
PCERT
        Purdue Computer Emergency Response Team
        
PCF
        Portable Compiled Font
        
PCH
        Paging CHannel (GSM, CCCH, mobile-systems)
        
PCI
        Peripheral Component Interconnect (PCI)
        
PCI
        Protocol Control Information (OSI, ETSI)
        
PCIA
        Personal Communications Industry Association (org., USA, SMS)
        
PCIC
        PC card I/O Card (PCMCIA, I/O)
        
PCIE
        Permis de Conduire Informatique Europeen (ECDL)
        
PCIPM
        PCI Power Management [specification] (PCI), "PCI PM"
        
PCIS
        Portable Common Interface Set
        
PCIX
        Personal Computer / unIX (IBM, PC), "PC/IX"
        
PCIXF
        Personal Computer Integrated eXchange Format (OS/2), "PC/IXF"
        
PCL
        Portable Common LOOPS (CLOS)
        
PCL
        Printer Control Language (HP)
        
PCL
        Programmable Command Language (CMU, DEC, TOPS)
        
PCM
        Personal Computer Manufacturer
        
PCM
        Physical Connection Management (FDDI, SMT)
        
PCM
        Plug Compatible Machine
        
PCM
        Pulse Coded Modulation
        
PCMCIA
        People Can't Memorize Computer Industries Acronyms (slang)
        
PCMCIA
        Personal Computer Memory Card International Association (org.)
        
PCMS
        Project & Configuration Management System
        
PCMT
        Personal Computer Message Terminal
        
PCN
        Personal Communications Network
        
PCN
        Public Communications Network (mobile-systems)
        
PCNFS
        Personal Computer Network File System
        
PCNOS
        Personal Computer / Network Operating System (OS, MS-DOS, CP/M), "PC/NOS"
        
PCO
        Point of Control and Observation (ISO 9646-1, IUT)
        
PCP
        Primary Control Program (IBM, OS, OS/PCP)
        
PCP
        Printer Control Protocol
        
PCPC
        Personal Computers Peripheral Corporation (manufacturer)
        
PCR
        Peak Cell Rate (UNI, ATM, SCR)
        
PCR
        Processor Configuration Register (Motorola, CPU)
        
PCR
        Program Clock Reference
        
PCRW
        Phase Change ReWritable (DVD, EMCA), "PC-RW"
        
PCS
        Personal Communication System (Sony, Panasonic, Motorola)
        
PCS
        Personal Communications Services
        
PCS
        Programmable Communications Subsystem
        
PCS
        Punched Card System (PC)
        
PCSA
        Personal Computing Systems Architecture [= Pathworks] (DEC, NOS)
        
PCSC
        Personal Computer / Smard Card (PC, PCMCIA), "PC/SC"
        
PCSD
        Printer Control Sequence Description
        
PCSI
        Pacific Communication Sciences, Inc. (manufacturer)
        
PCT
        Private Communication Technology (Internet, MS, Visa)
        
PCT
        Probe Control Table (FFST/2)
        
PCTCP
        Personal Computer/Transmission Control Protocol, "PC/TCP" 
        
PCTE
        Portable Common Tool Environment (CASE, ESPRIT)
        
PCTS
        POSIX Compliance Test Suite (POSIX)
        
PCV
        P-bit Coding Violation [error event] (DS3/E3)
        
PCV
        Path Coding Violation [error event] (DS1/E1)
        
PCXT
        Personal Computer - eXtended Technology, "PC-XT"
        
PD
        Packetization Delay
        
PD
        Plug & Display [standard] (LCD, VESA), "P&D"
        
PD
        Public DOMAIN
        
PDA
        Personal Digital Assistant
        
PDC
        Power Disk Cartridge (ECMA)
        
PDC
        Primary DOMAIN Controller (MS, Windows NT, BDC)
        
PDC
        PROLOG Development Center (manufacturer, Denmark, PROLOG)
        
PDE
        Partial Differential Equation
        
PDE
        Personal Digital Entertainment
        
PDES
        Product Data / Definition Exchange Standards (USA, STEP, CIM)
        
PDF
        Portable Document Format (Adobe)
        
PDF
        Program Development Facility (IBM)
        
PDH
        Plesiochronous Digital Hierarchy (ATM)
        
PDI
        Power and Data Interface
        
PDK
        Peripheral Developers Kit (MS)
        
PDL
        Page / Program Description / Design Language
        
PDL
        PERL Data Language (PERL)
        
PDL
        Program Development Language
        
PDLT
        Process Dispatch Latency Time
        
PDM
        Program Development Manager (IBM, ADT)
        
PDN
        Programmer's Distribution Network (Fido)
        
PDN
        Public Data Network (mobile-systems)
        
PDO
        Portable Distributed Objects (NeXT)
        
PDOS
        Parallel and Distributed Operating System (OS, MIT)
        
PDP
        Parallel Distributed Processing (AI)
        
PDP
        Peripheral Data Processing
        
PDP
        Plasma Display Panel
        
PDP
        Programmable Data Processor (DEC)
        
PDQ
        Parallel Data Query (Informix, DB)
        
PDS
        Partitioned Data Set
        
PDS
        Portable Display Shell (Shell)
        
PDS
        Processor Direct Slot / Socket (Motorola, Apple)
        
PDS
        Professional Development System (MS)
        
PDS
        Public DOMAIN Software (PD)
        
PDSP
        Peripheral Data Storage Processor
        
PDSS
        Post Development and Software Support
        
PDT
        Pacific Daylight Time [-0700] (TZ, PST, USA)
        
PDTR
        Proposed Draft Technical Report
        
PDU
        Packet Data Unit
        
PDU
        Product Development Unit
        
PDU
        Protocol Data Unit (OSI)
        
PDV
        Photorealistic Data Visualization
        
PDV
        ProzessDatenVerarbeitung
        
PE
        Phase Encoding
        
PE
        Portable eXecutable (Win32, Java)
        
PE
        Processing Element (MPP)
        
PEA
        Pocket Ethernet Adapter (LAN, ethernet)
        
PEARL
        Process and Experiment Automation Realtime Language
        
PEBCAK
        Problem Exists Between Chair And Keyboard (slang)
        
PEBKAC
        Problem Exists Between Keyboard And Chair (DFUe, Usenet, IRC)
        
PEC
        Program Execution Control (IBM, OS/2)
        
PEDS
        Planning, programming, budget, and execution Electronic Delivery System
        
PEEK
        Partners Early Experience Kit (Taligent)
        
PEL
        Picture ELement
        
PEM
        Privacy Enhanced Mail (PSRG, RFC 1421/1422/1423/1424)
        
PEN
        Public Education Network
        
PEP
        Packetized Ensemble Protocol (Telebit)
        
PEP
        Personal Exam Prep (MS, ATEC)
        
PER
        Packed Encoding Rules (ASN.1)
        
PER
        Program Event Recording
        
PERL
        Pathologically Eclectic Rubbish Lister (slang)
        
PERL
        Practical Extraction and Report Language (PERL)
        
PERM
        Pre-Embossed Rigid Magnetic (Sony, HDD)
        
PERMIS
        PERManentes InventurabwicklungsSystem (MBAG)
        
PEROM
        Programmable Erasable Read Only Memory (IC)
        
PERPOS
        PERpetual Processing Operating System (OS, Unix)
        
PERT
        Program Evaluation / Evolution and Review Technique
        
PES
        P-bit Errored Seconds (DS3/E3)
        
PES
        Photo-Electric Scanning (DTP)
        
PES
        Programmed Electrical Stimulation
        
PES
        Proposed Encryption Standard (cryptography)
        
PEST
        Parameter Estimation by Sequential Testing
        
PET
        Personal Electronic Translator
        
PET
        Print Enhancement Technology (Compaq)
        
PET
        Progressive Educational Technology
        
PEX
        PHIGS Extension for X (X-Windows, PHIGS)
        
PFA
        Parameter Field Address (Forth)
        
PFA
        Predictive Failure Analysis (HDD)
        
PFC
        Power Factor Correction
        
PFC
        Protocol Field Compression (PPP)
        
PFE
        Page Fault Error (Windows, MS)
        
PFK
        Program Function Key
        
PFM
        Printer Font Metrics (Adobe)
        
PFPU
        Processor Frame Power Unit
        
PFR
        Portable Font Resource (Netscape)
        
PFRAM
        Polymeric Ferroelectric Random Access Memory (RAM, IC)
        
PFWG
        [WAI] Protocols and Formats Working Group (WAI)
        
PGA
        Pin Grid Array (IC, CPU)
        
PGA
        Professional Graphics Adapter (IBM)
        
PGC
        Professional Graphics Controller
        
PGFNA
        Prince George Free-Net Association (org., USA)
        
PGI
        Parameter Group Identifier (SPDU)
        
PGM
        Practical General Multicast (Cisco, Multicast)
        
PGML
        Precision Graphics Markup Language (XML, IBM, Netscape, Sun, Adobe)
        
PGO
        Profile Guided Optimization (Intel)
        
PGP
        Pretty Good Privacy
        
PGS
        Program Generation System
        
PHIGS
        Programmer's Hierarchical Interactive Graphics System
        
PHIGSPLUS
        PHIGS Plus Lumiere and Surfaces (PHIGS), "PHIGS-PLUS"
        
PHIPS
        Professional High-Resolution Image Processing System (CA)
        
PHOTON
        paneuropean PHOtonic Transport Overlay Network (ACTS)
        
PHP
        PHP Hypertext Preprocessor (PHP/FI, HTML, CGI, successorr)
        
PHPFI
        Personal Home Page [construction kit]/Form Interpreter (HTML, CGI, PHP, Verlaeufer), "PHP/FI"
        
PHUN
        Phreakers and Hackers Underground Network (network)
        
PHY
        PHYsical Layer Control (FDDI)
        
PI
        Placement and Interconnect [system] (VLSI, MIT)
        
PIA
        Peripheral Interface Adapter
        
PIA
        Plug-In Administrator
        
PIC
        Personal Intelligent Communicator
        
PIC
        Point in Call (IN)
        
PIC
        Primary Independent Carrier
        
PIC
        Priority Interrupt Controller (IC)
        
PIC
        Programmable Interrupt Controller (PIC)
        
PICG
        PCTE Interface Control Group (org., PCTE)
        
PICS
        Platform for Internet Content Selection (org., Internet)
        
PICS
        Plug-in Inventory Control System
        
PICS
        Protocol Implementation Conformance Statements
        
PICSDCPR
        PICS Detailed Continuing Property Record, "PICS/DCPR"
        
PICU
        Priority Interrupt Control Unit
        
PID
        Process IDentification number (Unix)
        
PID
        Protocol IDentifier [governing connection types]
        
PIE
        Personal Interactive Electronics [division] (Apple)
        
PIG
        Psion Interest Group (Psion)
        
PIIX
        PCI IDE/ISA Xcelerator (Intel IC)
        
PIKT
        Problem Informant/Killer Tool (GNU, Linux)
        
PIM
        Parallel Inference Machine (FGCS, AI)
        
PIM
        Personal Information Manager
        
PIM
        Protocol Independent Multicast (ACM, Multicast)
        
PIMA
        Photographic & Imaging Manufacturers Association (org., predecessor, I3C)
        
PIMB
        PCTE Interface Management Board (org., PCTE)
        
PIMDM
        Protocol Independent Multicast-Dense Mode [protocol] (PIM, ACM, Multicast), "PIM-DM"
        
PIMF
        Paar [kabel] In MetallFolie (VDE, STP), "PiMF"
        
PIMS
        Project Information Management System
        
PIMSM
        Protocol Independent Multicast-Sparse Mode [protocol] (RFC 2117/2362, PIM, ACM, SM, Multicast), "PIM-SM"
        
PIN
        Personal Identification Number (banking, ICC)
        
PIN
        Processor Independent Netware (Novell, HP, DEC, Apple, Sun)
        
PINE
        Program for Internet News and Email / PINE Is No longer ELM
        
PINET
        Physicians Information NETwork (network, USA)
        
PING
        Packet InterNet Groper (ICMP, TCP/IP)
        
PINT
        PSTN INTernet Interworking [group] (PSTN, IETF)
        
PIO
        Parallel / Programmed Input/Output
        
PIOS
        Personen, Institutionen, Objekte, Sachen (INPOL)
        
PIP
        Packet Interface Port
        
PIP
        Paper Impact Printing
        
PIP
        Peripheral Interchange Program
        
PIP
        Personal Information Processor
        
PIP
        Picture In Picture (video)
        
PIP
        Plug-In Protocol (ZOC)
        
PIPS
        Parallel Information Processing System (GNU)
        
PIPS
        Pattern Information Processing Systems
        
PIRA
        Printing Industries Research Association (org.)
        
PISA
        Portable InformationsSystem Architecture (DB, infodas, PISA)
        
PISABG
        PISA/Business Graphics (PISA), "PISA/BG"
        
PISADB
        PISA/Data Base (PISA, DB), "PISA/DB"
        
PISADD
        PISA/Data Dictionary (PISA), "PISA/DD"
        
PISADK
        PISA/ ??? (PISA), "PISA/DK"
        
PISAMP
        PISA/Menue Processor (PISA), "PISA/MP"
        
PISANT
        PISA/ ??? (PISA), "PISA/NT"
        
PISAPPS
        PISA/ProduktionsPlanung und -Steuerungssystem (PISA), "PISA/PPS"
        
PISAQL
        PISA/Query Language (PISA), "PISA/QL"
        
PISARG
        PISA/Report Generator (PISA), "PISA/RG"
        
PISW
        Process Interrupt Status Word (CPU, assembler)
        
PIT
        Programmable Interval Timer
        
PITA
        Pain In The Anatomy / Ass (slang, Usenet, IRC)
        
PIU
        Path Information Unit (IBM, SNA)
        
PIU
        Plug-In Unit
        
PIXEL
        PIcture ELement
        
PIXIT
        Protocol Implementation eXtra Information for Testing
        
PK
        Public Key (cryptography)
        
PKCS
        Public Key Cryptography Standards (org., USA, cryptography)
        
PKI
        Public Key Infrastructure (cryptography, Internet, ITU, PKI)
        
PKS
        Polizeiliche KriminalStatistik (INPOL)
        
PKT
        Partition Knowledge Table
        
PL
        Physical Layer (ISO, OSI)
        
PLA
        Program License Agreement (IBM)
        
PLA
        Programmable Logic Array
        
PLATO
        Programmed Logic for Automated Teaching Operations
        
PLB
        Picture Level Benchmark (GPC)
        
PLBSI
        Picture Level Benchmark Sample Implementation (GPC)
        
PLC
        Programmable Logic Controller (IC)
        
PLCC
        Plastic Leaded [/ Leadless] Chip Carrier
        
PLCP
        Physical Layer Convergence Procedure / Protocol (UNI, DS-3)
        
PLD
        Programmable Logic Device (IC, RL)
        
PLDA
        Private Loop Direct Attach
        
PLDM
        Power Line Disturbance Monitor
        
PLI
        Programming Language One (DEC), "PL/I"
        
PLIP
        Parallel Line Internet Protocol (IP), "PL/IP" 
        
PLL
        Phase Locked Loop
        
PLM
        Programming Language for Microcomputers
        
PLMN
        Public Land Mobile Network (mobile-systems, GSM)
        
PLONK
        Please Leave Our Newsgroup, Kid (Usenet, slang)
        
PLOU
        Physical Layer Overhead Unit (UNI), "PL-OU"
        
PLP
        Packet Layer Protocol (X.25)
        
PLP
        Party Line Protocol
        
PLP
        Presentation Level Protocol
        
PLS
        Personal Library Systems (manufacturer)
        
PLS
        PhysicaL Signaling
        
PLS
        Programmable Logic Sequencer
        
PLT
        Procedure Linkage Table
        
PLV
        Presentation Level Video (DVI, Intel)
        
PM
        Performance Management
        
PM
        Peripheral Module
        
PM
        Personal Message (BBS)
        
PM
        Physical Medium
        
PM
        Presentation Manager (OS/2)
        
PM
        Privileged Mode (HP, MPE)
        
PM
        Protected Mode (Intel, CPU)
        
PMA
        Physical Medium Attachment
        
PMA
        Policy Management Architecture (Netmanage, Internet)
        
PMA
        Program Memory Area (CD)
        
PMAC
        Packet Media Access Control (FDDI), "P-MAC"
        
PMAC
        Peripheral Module Access Controller
        
PMBR
        PIM Multicast Border Router (PIM, Multicast)
        
PMC
        Pseudo-Machine Code
        
PMD
        Physical layer, Medium Dependant [sub-layer] (FDDI, UNI)
        
PMDRAM
        Page Mode Dynamic Random Access Memory (RAM, DRAM, IC), "PM-DRAM"
        
PME
        Pattern Matching Engine
        
PMJI
        Pardon Me for Jumping In (slang)
        
PMMU
        Paged Memory Management Unit
        
PMOS
        Positive-channel Metal Oxide Semiconductor (IC)
        
PMP
        Point to MultiPoint (UNI)
        
PMP
        Preventive Maintenance Package (AIX, IBM)
        
PMR
        Poor Man's Routing
        
PMR
        Problem Management Report (IBM)
        
PMS
        Personal Mailing System
        
PMS
        Processor Memory Switch
        
PMS
        Project Management System
        
PMS
        Public Message System
        
PMSP
        Preliminary Message Security Protocol
        
PMU
        PowerMeter Unit
        
PMW
        Project Manager Workbench
        
PMX
        Packet MultipleXer (MUX)
        
PMX
        Presentation Manager for the X window system, "PM/X" 
        
PNG
        Portable Network Graphics [format] (RFC 2083)
        
PNNI
        [phase 0] Public Network Node Interface [protocol] (ATM)
        
PNNI
        Private Network to Network Interface (ATM), "P-NNI"
        
PNP
        Plug 'N Play (PNP), "PnP"
        
PNPBIOS
        Plug and Play Basic Input Output System (PNP, BIOS), "PnP BIOS"
        
PNPN
        Positive Negative Positive Negative [devices]
        
PNS
        PeaceNet Sweden (network)
        
PNW
        Personal NetWare (Novell, Netware)
        
POACH
        PC-On-A-Chip (PC)
        
POC
        Proof of Concept
        
POCSAG
        Post Office Code Standard Advisory Group (org., SMS)
        
POD
        Plain Old Document [format]
        
POD
        Print / Publishing On Demand, "PoD"
        
PODA
        Piloting of ODA (ESPRIT, SNI, Bull, TITN, ICL, Olivetti, ODA)
        
PODA
        Priority Orientated Demand Assignment (MAC, TDM)
        
POE
        PowerOpen Association (Apple, IBM, Motorola, ..., org.)
        
POEM
        Portable Object-orientated Entity Manager (SGML)
        
POEMS
        Platinum Open Enterprise Management System
        
POEP
        Primary Operand Execution Pipeline (Motorola, CPU), "pOEP"
        
POF
        Plastic Optical Fiber (OWG)
        
POGO
        Programmer-Oriented Graphics Operation
        
POH
        Path OverHead (SONET)
        
POI
        Path Overhead Indicator (SONET)
        
POI
        Point Of Information
        
POI
        Point Of Interaction (IN)
        
POL
        Problem / Procedure / Process Oriented Language
        
PON
        Passive Optical Network
        
POOL
        Parallel Object Orientated Language (DOOM, OOP)
        
POP
        Package for Online Programming
        
POP
        Point Of Presence (Internet, ISP)
        
POP3
        Post Office Protocol 3 (Internet, RFC 1939)
        
POR
        Point Of Return (IN)
        
POR
        Power-On Reset (BIOS)
        
POS
        Primary Operating System (OS, RCA Spectra 70)
        
POS
        Professional Operating System (OS, DEC), "P/OS"
        
POS
        Programmable Object Select
        
POS
        Piece of Shit
        
POSE
        Palm Operating System Emulator (Palm)
        
POSI
        Promoting conference for OSI (Japan, org., conference)
        
POSIX
        Portable Operating System for unIX (OS, IEEE 1003, ISO 9945, PASC, Unix)
        
POST
        Power-On Self-Test
        
POSYBL
        PrOgramming SYstem for distriButed appLications
        
POTS
        Plain Old Telephone System (slang, Usenet, IRC)
        
POV
        Persistence of Vision (raytracing)
        
POWER
        Power Optimization With Enhanced RISC [chip] (IBM, Apple, Motorola)
        
PP
        Physical Partition (LVM)
        
PP
        Physical Plane (IN)
        
PP
        Pre-Processor
        
PPA
        Parallel Port Adapter
        
PPC
        PowerPC (Apple)
        
PPC
        Program to Program Communication (Apple)
        
PPDS
        Personal Printer Data Stream
        
PPDU
        Presentation Protocol Data Unit (PDU, OSI, ISO 8823, OSI/RM)
        
PPE
        Packet Processing Engine (Hub)
        
PPGA
        Plastic Pin Grid Array (CPU)
        
PPI
        Parallel Port Interface
        
PPI
        Pixels Per Inch
        
PPI
        Programmable Peripheral Interface
        
PPID
        Parent Process IDentification number (Unix)
        
PPL
        Pcboard Programming Language (BBS)
        
PPL
        Polymorphic Programming Language (Harvard, Xerox, PARC)
        
PPM
        Pages Per Minute
        
PPM
        Pulse Position Modulation (MMVF)
        
PPMI
        PCI bus Power Management Interface (PCI)
        
PPMS
        Professional Productivity Management System
        
PPN
        Project Programmer Number
        
PPN
        Public Packet Switching
        
PPOP
        Plain Paper Optimized Printing (Canon), "P-POP"
        
PPP
        Point-to-Point Protocol (Internet, PPP, RFC 1171/1661)
        
PPPD
        Point-to-Point Protocol Deamon (PPP)
        
PPPOE
        Point-to-Point Protocol Over Ethernet [protocol] (ADSL, RFC 2516), "PPPoE"
        
PPS
        Packets Per Second
        
PPS
        Parallel Processing System
        
PPS
        ProduktionsPlanung und -Steuerung
        
PPS
        Public Packet Switching [network]
        
PPSN
        Public Packet-Switched Network
        
PPSU
        Personal Printer Spooling Utility
        
PPTP
        Point-to-Point Tunneling Protocol (MS, Ascend, IP)
        
PPU
        Peripheral Processing Unit
        
PQET
        Print Quality Enhancement Technology (Lexmark)
        
PQFP
        Plastic Quad Flat Package (CPU)
        
PR
        Packet Radio
        
PR
        Pattern Recognition
        
PR
        Pentium Rating (AMD)
        
PR
        Placement & Routing (RL, IC), "P&R"
        
PRACSA
        Public Remote-Access Computer Standards Association (org., USA)
        
PRAM
        Parameter Random Access Memory (RAM, IC, Apple), "P-RAM"
        
PRCS
        Project Revision Control System (GNU)
        
PREP
        PowerPC REferenz Plattform (IBM, Apple), "PReP"
        
PREPNET
        Pennsylvania Research and Economic Partnership NETwork (network, USA), "PREPnet"
        
PRF
        Problem Report Form (IBM)
        
PRI
        Primary Rate Interface (ISDN)
        
PRIDE
        PRofitable Information by DEsign (IRM)
        
PRISM
        Parallel Reduced Instruction Set Multiprocessing
        
PRISM
        PRogrammed Integrated System Maintenance
        
PRMD
        PRivate Management DOMAIN (X.400, MHS)
        
PRML
        Partial Response - Maximum Likelihood (HDD)
        
PRN
        Pseudo Random Noise [code] (GPS)
        
PRNG
        Pseudo Random Numer Generator
        
PRO
        Precision RISC Organization (org.)
        
PROFIBUS
        PROcess FIeld BUS
        
PROFS
        PRofessional OFfice System (IBM, VM)
        
PROLOG
        PROgramming in LOGic
        
PROM
        Partial Read Only Memory (ROM), "P-ROM" 
        
PROM
        Programmable Read Only Memory (ROM, IC)
        
PROMATS
        PROgrammable Magnetic Tape System
        
PROPAL
        PROgrammed PAL
        
PROS
        ??? [protocol]
        
PROTEL
        PRocedure Oriented Type Enforcing Language
        
PRPQ
        Programming Request for Price Quotation
        
PRS
        Pattern-Recognition System (PR)
        
PRT
        Portable Remote Terminal
        
PRT
        Program Reference Table
        
PRTM
        Printing Response Time Monitor
        
PS
        PostScript (Adobe)
        
PS
        Power Supply
        
PS
        Privilege Service (DCE)
        
PS
        Process Status (Unix)
        
PS2
        Personal System /2, "PS/2" 
        
PSA
        Python Software Activity (Python)
        
PSAP
        Presentation Service Access Point (OSI, OSI/RM, SAP)
        
PSB
        Program Specification Block (IBM)
        
PSC
        Pittsburgh Supercomputing Center (org., USA)
        
PSCNET
        Pittsburgh Supercomputing Center NETwork (network, USA), "PSCnet"
        
PSD
        Printer Sharing Device
        
PSD
        Programmer's Supplementary Documents (BSD, Unix)
        
PSDC
        Public Switched Digital Capability
        
PSDN
        Packet-Switching Data Network
        
PSDS
        Public-Switched Digital Service
        
PSE
        Packet Switch Exchange
        
PSE
        Port Switched Ethernet (Bytex, VLAN, ethernet)
        
PSES
        P-bit Severely Errored Seconds (DS3/E3)
        
PSF
        Permanent Swap File
        
PSF
        Print Services Facility (IBM)
        
PSF
        Python Software Foundation (org., Python)
        
PSI
        Performance Systems International, inc.
        
PSID
        Presentation Space IDentifier (IBM)
        
PSIPU
        PostScript - Intelligent Processing Unit (Canon, Adobe, CLC), "PS-IPU"
        
PSIU
        Packet Switch Interface Unit
        
PSK
        Phase Shift Keying (DFUe)
        
PSL
        PD Service Lage (Haendler)
        
PSL
        Public Software Library
        
PSM
        Persistent Storage Manager (Maxtor)
        
PSM
        Persistent Stored Modules (SQL)
        
PSM
        Personal Software Marketing (IBM)
        
PSN
        Packet / Public Switched Network
        
PSN
        Packet Switch Node (ARPANET, MILNET)
        
PSOM
        Persistency framework in SOMobjects (IBM, DSOM)
        
PSOS
        Provably Secure Operating System (OS)
        
PSP
        Personal Software Products (IBM)
        
PSP
        Program Segment Prefix (DOS)
        
PSP
        ProjektStrukturPlan
        
PSPDN
        Packet Switched Public Data Network (IN)
        
PSR
        Phase Shift Register (IC)
        
PSR
        Program Support Representative
        
PSRG
        Privacy and Security Research Group (IRTF)
        
PSRO
        Professional Standards Review Organization
        
PSS
        Packet Switch Services / Stream
        
PSSF
        Personal System Support Family (IBM)
        
PST
        Pacific Standard Time [-0800] (TZ, PDT, USA)
        
PSTN
        Public Switched Telephone Network (IN)
        
PSU
        Portable Storage Unit
        
PSU
        Primary Sampling Unit
        
PSU
        Program Storage Unit
        
PSW
        Program Status Word
        
PT
        Payload Type (ATM)
        
PTAL
        Payment Transaction Application Layer (Internet, banking)
        
PTAT
        Private Trans-Atlantic Telecommunications
        
PTB
        Physikalisch-Technische Bundesanstalt (org.)
        
PTC
        Pacific Telecommunications Council (org.)
        
PTC
        Parallel Test Component (ISO 9646-3, TTCN)
        
PTD
        Parallel Transfer Disk / Drive
        
PTE
        Packet Transport Equipment
        
PTE
        Path Terminating Equipment (SONET)
        
PTERM
        Physical TERMinal (IBM), "PTerm"
        
PTF
        Program Temporary Fix (IBM)
        
PTH
        Plated-Through-Hole
        
PTI
        Payload Type Identifier (ATM, PT)
        
PTI
        Polskie Towarzystwo Informatyczne (org., Poland)
        
PTM
        Packet Transfer Mode (ATM)
        
PTMSC
        Point-To-Multipoint Service Center (GPRS, mobile-systems, Multicast), "PTM-SC"
        
PTO
        Patent and Trademark Office (org., USA)
        
PTOCA
        Presentation Text Object Content Architecture (IBM, MO:DCA)
        
PTOS
        Paper Tape Operating System (OS)
        
PTP
        Paper Tape Punch
        
PTP
        Picture Transfer Protocol (PIMA 15740)
        
PTR
        Paper Tape Reader
        
PTSS
        People's Time Sharing System (OS; CDC 6600)
        
PTT
        Postes, Telegraphe et Telephone (org., Switzerland)
        
PTTP
        Point-to-PoinT Tunneling Protocol
        
PTW
        Primary Translation Word
        
PTY
        Pseudo-Terminal driver
        
PU
        Physical Unit (NAU)
        
PU
        Power Unit
        
PU
        Processing Unit
        
PUA
        Profiling User Agent
        
PUB
        Physical Unit Block
        
PUC
        Peripheral Unit Controller
        
PUC
        Public Utilities Commission
        
PUCP
        Physical Unit Control Point (IBM, SNA)
        
PUFFT
        Purdue University Fast FORTRAN compiler (FORTRAN)
        
PUID
        Physical Unit IDentifier (IBM)
        
PUK
        Personal / PIN Unblocking Key (PIN)
        
PUMA
        Power User's Macintosh Association (org., Apple)
        
PUMA
        Processor Upgradable Modular Architecture
        
PUMA
        Programmable Universal Micro Accelerator
        
PUMS
        Physical Unit Management Services
        
PUP
        PARC Universal packet Protocol
        
PURL
        Persistent Uniform Resource Locator (URL, WWW)
        
PUT
        Program Update Tape
        
PV
        Physical Volume (LVM, HDD)
        
PVA
        Packetized Video Audio
        
PVC
        Permanent Virtual Circuit (SVC)
        
PVC
        Permanent Virtual Circuit / Channel / Connection (ATM)
        
PVCC
        Permanent Virtual Channel Connection (ATM)
        
PVCS
        Polytron Version Control System
        
PVD
        Primary Volume Descriptor (CD, IS 9660)
        
PVITL
        Program-Variation-In-The-Large (SCM)
        
PVITS
        Program-Variation-In-The-Small (SCM)
        
PVM
        Parallel Virtual Machine (SMP, Cluster)
        
PVN
        Private Virtual Network
        
PVP
        Packet Video Protocol
        
PVPC
        Permanent Virtual Path Connection (ATM)
        
PWB
        Printer Wire Board
        
PWB
        Programmers Work Bench (MS)
        
PWD
        Print Working Directory (Unix)
        
PWM
        Pulse Width Modulation (DVD)
        
PWN
        Peacenet World News
        
PWSCS
        Programmable WorkStation Communication Services
        
PWV
        Pulse-Wave Velocity
        
PXE
        Preboot eXecution Environment (Intel)
        
PY
        Person Years
        
PZDF
        Phil Zimmermann Defense Fund (PGP)
        
PZE
        ???
        

        
        









        

QA
        Quality Assurance
        
QA
        Question & Answers, "Q&A"
        
QA
        Quick Arbitration (HD)
        
QAM
        Quadrature Amplitude Modulation
        
QAP
        Quality-Assurance Program (QA)
        
QAPI
        Quality-Assurance Program Inspections (QA)
        
QAPI
        Queue Application Program Interface (SAP, API)
        
QAPP
        Quality-Assurance Program Plan (QA)
        
QAS
        Quasi-Associated Signaling
        
QBASIC
        Quick Beginner's All-purpose Symbolic Instruction Code (BASIC, DOS)
        
QBBS
        Quick Bulletin Board System (BBS)
        
QBE
        Query By Example (DB)
        
QBF
        Query By Forms (DB)
        
QBIC
        Query By Image Content (IBM)
        
QCB
        Queue Control Block
        
QCDP
        Quality Color Dithering Modus
        
QCIF
        Quarter Common Interchange Format
        
QD
        Queueing Delay
        
QDL
        Quadri Data Layer [CD] (CD)
        
QDOS
        Quick and Dirty Operating System (OS, PC, MS-DOS, predecessor)
        
QEMM
        Quarterdeck Expanded Memory Manager (EMM, Quarterdeck)
        
QF
        Query Filter (DB)
        
QFA
        Quick File Access
        
QFE
        Quick Fix Engineering (MS)
        
QFP
        Quad Flat Pack
        
QIC
        Quarter Inch Committee (org., Streamer)
        
QICSC
        Quarter Inch Cartridge Standards Committee (QIC)
        
QICW
        Quarter Inch Cartridge Wide (QIC)
        
QIS
        Quality Information System
        
QL
        Query Language
        
QLD
        Queuing Literature Database (DB)
        
QLI
        Query Language Interpreter
        
QLLC
        Qualified Logical Link Control [protocol] (IBM)
        
QMC
        Quine McCluskey approach
        
QMF
        Query Management Facility (IBM)
        
QMR
        Quarterly Maintenance Releases (Lotus)
        
QMS
        Queue Management Service (Netware)
        
QOS
        Quality Of Service (ATM, CLR, CTD, CDV), "QoS" 
        
QPA
        Quality Program Analysis
        
QPS
        Quark Publishing System (DTP)
        
QPSK
        Quadri Phase Shift Keying [modulation]
        
QPSX
        Queue Packet and Synchronous circuit Exchange
        
QPU
        Quick Pascal Units (MS)
        
QSAM
        Queued Sequential Access Method (SAM)
        
QTAM
        Queued Terminal Access Method
        
QUEX
        Query Update by EXample
        
QUICC
        QUad Integrated Communications Controller (Motorola)
        
QUIP
        QUad In-line Package
        
QUIPS
        QUality Improvements Per Second
        
QXGA
        ??? Graphics Array [2048 x 1536]
        
QXI
        Queue eXecutive Interface
        

        
        









        

RA
        Registration Authority (PKI, ITU)
        
RA
        Remote Access (BBS)
        
RACE
        Research and technology development in Advanced Communications technologies in Europe (Europe, predecessor, CORDIS)
        
RACE
        Rowbased ASCII Compatible Encoding (ASCII, Internet, DOMAIN, VeriSign/NSI)
        
RACF
        Resource Access Control Facility (IBM, MVS/ESA)
        
RACH
        Random Access CHannel (GSM, CCCH, mobile-systems)
        
RAD
        Rapid Access Disk
        
RAD
        Rapid Application Development [toolkit] (Delphi, Borland)
        
RAD
        Research And Development [data communications] (manufacturer)
        
RADIUS
        Remote Authentication Dial-In User Service (RFC 2138)
        
RADSL
        Rate Adaptive Digital Subscriber Line (ADSL)
        
RAI
        Remote Alarm Indication (DS3/E3)
        
RAID
        Redundant Array of Independent / Inexpensive Disks (HDD, RAID)
        
RAIR
        Random Access Information Retrieval
        
RAL
        ReichsAusschuss fuer Lieferbedingungen (IEC 12119)
        
RAL
        Rutherford Appleton Laboratory (org., UK)
        
RAM
        Random Access Memory (RAM, IC)
        
RAM
        Rarely Adequate Memory (slang)
        
RAMDAC
        Random Access Memory Digital to Analog Converter (RAM)
        
RAMIS
        Rapid Access Management Information System
        
RAMP
        Remote Access Maintenance Protocol
        
RAMS
        Record Archival Management System
        
RAND
        Rural Area Network Design
        
RAP
        [internet] Route Access Protocol (RFC 1476, Internet)
        
RAP
        Remote Access Point
        
RAPID
        Resource And Performance Interactive Display system
        
RAPS
        Real Application on Parallel Systems
        
RARE
        Reseaux Associes pour la Recherche Europeenne (org.)
        
RARP
        Reverse Address Resolution Protocol (Internet, RFC 903)
        
RAS
        Reliability, Availability and Serviceability (IBM)
        
RAS
        Remote Access Software
        
RAS
        Row Address Strobe (IC, DRAM)
        
RATP
        Reliable Asynchronous Transfer Protocol (RFC 916)
        
RATS
        Radio-Amateur Telecommunications Society (org., USA)
        
RAVE
        Relational Advanced Visual Environment
        
RBA
        Relative Byte Address
        
RBBS
        Remote Bulletin Board System (BBS)
        
RBF
        Random Block Filemanager (OS-9)
        
RBH
        Remote Bridge Hub
        
RBL
        Realtime Blackhole List (Internet, SPAM)
        
RBM
        Realtime Batch Monitor (OS, Xerox)
        
RBMS
        Remote Bridge Management Software
        
RBOC
        Regional Bell Operating Company (USA)
        
RC
        Reconfigurable Computer / Computing (RL)
        
RC
        Region Co-ordinator (FidoNet)
        
RC
        Release Candidate (MS)
        
RC
        Return Code (REXX, ...)
        
RC
        Routing Control
        
RC24
        Ron's Code 2/4 (cryptography), "RC2/4"
        
RC5
        Rivest Cipher 5 (RFC 2040, cryptography)
        
RCAS
        Reserve Component Automation System
        
RCC
        Radio Common Carrier
        
RCC
        Regional Control Center
        
RCC
        Remote Cluster Controller
        
RCC
        Routing Control Center
        
RCD
        Receiver-Carrier Detector
        
RCE
        Regional Code Enhancement (DVD)
        
RCE
        Resident Command Extension (DOS)
        
RCF
        Reader's Comment Form (IBM)
        
RCF
        Remote Call-Forwarding
        
RCGI
        Remote Common Gateway Interface (CGI, WWW, Novell)
        
RCL
        Runtime Control Library
        
RCM
        Remote Carrier Module
        
RCP
        Remote Copy Program
        
RCS
        Reloadable Control Storage
        
RCS
        Remote Connection Service (IBM, OS/2, LAN)
        
RCS
        Resource Construction Set
        
RCS
        Revision Control System (Unix, CM, GNU)
        
RCTC
        Rewritable Consumer Time Code (video)
        
RCTL
        Resistor-Capacitor-Transistor Logic
        
RD
        Receive Data (MODEM)
        
RD
        Recursive Design (CASE)
        
RD
        Remove Directory (DOS, OS/2)
        
RD
        Research and Development, "R&D"
        
RD
        Route Descriptor
        
RDA
        Remote Database Access (ISO, OSI)
        
RDB
        Receive Data Buffer
        
RDB
        Relational DataBase (DB)
        
RDB
        Rigid Disk Block (Amiga, Commodore)
        
RDBMS
        Relational DataBase Management System (DBMS, DB)
        
RDBMSMIB
        Relational DataBase Management System - Management Information Base (DB), "RDBMS-MIB" 
        
RDC
        Remote Data Connector
        
RDD
        Random Digital Dial
        
RDD
        Replaceable Database Driver (Clipper, CA-VO, DB)
        
RDE
        Received Data Enable
        
RDES
        Remote Data Entry System
        
RDF
        Rate Decrease Factor
        
RDF
        Record Definition Field
        
RDF
        Resource Description Framework (IBM, Netscape, MS, ..., WWW)
        
RDH
        RSA-DES-Hybridverschluesselung (cryptography, HBCI)
        
RDI
        Remote Defect Identification / Indicator (UNI)
        
RDL
        Relational Database Language (DB)
        
RDL
        Remote Digital Loopback
        
RDLAP
        Radio Data Link Access Protocol (MODACOM), "RD-LAP"
        
RDM
        Relational Data Modeler
        
RDM
        Reliably Delivered Message
        
RDN
        Relative Distinguished Name (X.500)
        
RDNCRC
        Research Data Network Cooperative Research Centre (org., Australia)
        
RDO
        ??? (CICS, IBM)
        
RDO
        ??? (CICS, IBM)
        
RDO
        Remote Data Objects (DB)
        
RDP
        Reliable Datagram Protocol
        
RDP
        Remote Desktop Protocol (MS)
        
RDP
        Remote Display Protocol (MS, Windows NT, ASP)
        
RDR
        Request Data with Reply (Feldbus)
        
RDRAM
        Rambus Dynamic Random Access Memory (RAM, IC, Rambus)
        
RDRN
        Rapidly Deployable Radio Networks (USA, Uni Kansas)
        
RDS
        Radio Digital System
        
RDS
        Rapid Development System (DB, Informix)
        
RDS
        Remote Data Services
        
RDSN
        Region Digital Switched Network
        
RDT
        Radio Digital Terminal
        
RDT
        Restricted Data Transmissions
        
RE
        Research and Engineering, "R&E"
        
REACH
        Research and Educational Applications of Computers in the Humanities
        
READ
        Relative Element Address Designate (cryptography)
        
REGEX
        REGular EXpressions (GREP, EMACS, ...)
        
REGIS
        REmote Graphics Instruction Set
        
REGTP
        REGulierungsbehoerde fuer Telekommunikation und Post Org., Germany, "RegTP"
        
REM
        Remote Equipment Module
        
REM
        Ring Error Monitor
        
REMIS
        Real Estate Management Information System
        
REMOS
        Resources Management On-Line System
        
RES
        Remote Entry Services
        
RESTENA
        RESeau Teleinformatique de l'Education NAtionale et de la recherce (network, Luxembourg)
        
RET
        Report Engine Technology (CA, DB)
        
RET
        Resolution Enhancement Technology (HP), "REt"
        
RETM
        Rare Earth / Transition Metal (MO), "RE/TM"
        
REXX
        Restructured EXtended eXecutor [language] (IBM, SAA, ANSI)
        
RF
        Radio Frequency (mobile-systems)
        
RFA
        Request for Assistance (Internet)
        
RFB
        Remote FrameBuffer [protocol]
        
RFC
        Remote Function Call (SAP, CPIC)
        
RFC
        Request For Comments (Internet, RFC)
        
RFD
        Ready-For-Data
        
RFD
        Report Fragmentation Done [bit] (CATNIP)
        
RFD
        Request For Discussion (Internet, Usenet), "RfD"
        
RFE
        Request For Enhancement (Internet)
        
RFI
        Radio Frequency Interference
        
RFI
        Request For Information (Internet)
        
RFIC
        Radio Frequency Integrated Circuit (IC)
        
RFID
        Radio Frequency IDentification (ANSI, NCITS)
        
RFMS
        Remote File Management System
        
RFNM
        Request For Next Message (IMP)
        
RFP
        Request for Package (Linux, Debian)
        
RFP
        Request For Proposal (Internet)
        
RFQ
        Request for Quatation
        
RFS
        Remote File Sharing (AT&T, Unix)
        
RFS
        Remote File System
        
RFS
        REXX File System (REXX, CICS, VSAM, IBM)
        
RFT
        Request For Technology (OSF)
        
RFT
        Revisable Form Text
        
RFTS
        Remote File Transfer System (DDVS)
        
RGB
        Rot Gruen Blau / Red Green Blue (color system, DTP)
        
RGP
        Raster Graphics Processor
        
RGP
        Remote Graphics Processor
        
RH
        Request Header
        
RI
        Ring Indicator (RS-232, MODEM)
        
RI
        Routing Information
        
RIACS
        Research Institute for Advanced Computer Science (org.)
        
RID
        Relative IDentifier
        
RIDE
        Research Issues in Data Engineering (IEEE-CS)
        
RIE
        Reactive Ion Etching (IC)
        
RIF
        Routing Information Field (Token Ring)
        
RIFF
        Resource Interchange File Format (MS, IBM, MM)
        
RIG
        Related Interest Group
        
RIG
        Rochester Intelligent Gateway (OS)
        
RII
        Routing Information Indicator
        
RIM
        Remote Installation and Maintenance
        
RIME
        Relaynet International Message Exchange
        
RIMM
        Rambus Inline Memory Module (Rambus, IC)
        
RIO
        Redistributed Internet Objects (S3, VRML, Internet)
        
RIOCP
        ??? (OS), "RIO/CP "
        
RIP
        Raster Image Processor (DTP)
        
RIP
        Remote Imaging Protocol (BBS)
        
RIP
        Routing Information Protocol (BSD, IGP, RFC 1721, IP)
        
RIPE
        Reseaux IP Europeenne (Europenet)
        
RIPL
        Remote Initial Program Load (IBM)
        
RIPNG
        Routing Information Protocol Next Generation (RIP, IPV6, RFC 2080), "RIPng"
        
RIPS
        Raster Image Processing Systems corporation (manufacturer)
        
RIS
        Remote Installation Service
        
RISC
        Reduced Instruction Set Code (CPU)
        
RISC
        Research Institute for Symbolic Computation (org., Austria)
        
RISCOS
        RISC Operating System (MIPS, Acorn, OS), "RISC OS"
        
RISLU
        Remote Integrated Services Line Unit
        
RITECH
        Resolution Improvement TECHnology (Epson)
        
RITSEC
        Regional Information Technology and Software Engineering Center
        
RJ45
        Registered Jack 45 (cable)
        
RJE
        Remote Job Entry (IBM, Internet, RFC 407)
        
RJEF
        Remote Job Entry Function
        
RJP
        Remote Job Processing
        
RKRM
        ROM Kernel Reference Manual (Amiga, Commodore)
        
RL
        Real Life (DFUe, Usenet, IRC)
        
RL
        Reconfigurable Logic (RL)
        
RLC
        Radio Link Control (GPRS, mobile-systems)
        
RLE
        Run-Length Encoded
        
RLIN
        Research Libraries Information Network (network)
        
RLL
        Run Length Limited [encoding]
        
RLN
        Remote LAN Nodes (LAN)
        
RLP
        Radio Link Protocol (GSM, mobile-systems)
        
RLP
        Resource Location Protocol (Internet, RFC 887)
        
RLS
        Received Line Signal
        
RLSD
        Received Line Signal Detector
        
RLSFB
        Read Last Spool File Buffer (IBM, VM/ESA, CP)
        
RLT
        Remote Line Test
        
RLV
        RingLeitungsVerteiler
        
RM
        Resource Management
        
RMAS
        Remote Memory Administration System
        
RMATS
        Remote Maintenance Administration and Traffic
        
RMCOS
        Ryan-McFarland COBOL (????) Operating System (OS, COBOL), "RM/COS"
        
RMF
        Resource Measurement Facility (IBM, MVS)
        
RMI
        Remote Method Invocation (Java, API)
        
RMM
        Ring Management Module (Token Ring)
        
RMON
        Remote MONitoring
        
RMOS
        Realtime Multitasking Operating System (SNI, OS)
        
RMS
        ??? [bus]
        
RMS
        Reason Maintenance System (AI)
        
RMS
        Richard Matthew Stallman (FSF, EMACS)
        
RMT
        Raw Magnetic Tape (Unix)
        
RMT
        Reliable Multicast Transport (IETF, WG, Multicast)
        
RMT
        REXXware Migration Tool (Simware, REXX)
        
RMT
        Ring ManagemenT (FDDI, SMT)
        
RNA
        Remote Network Access
        
RND
        RAD Network Devices (RAD, manufacturer)
        
RNI
        Raw Native Interface (MS, Java)
        
RNOC
        Regional Network Operations Center
        
RNPRSFP
        Read Next PRint Spool File Block (IBM, VM/ESA, CP)
        
RNPUFSB
        Read Next PUnch Spool File Block (IBM, VM/ESA, CP)
        
RNR
        Receive Not Ready (LAPB)
        
RNSB
        Read Next Spool Buffer (IBM, VM/ESA, CP)
        
RNUI
        Remote Network User Identification (Datex-P)
        
RO
        Read-Only (I/O)
        
ROAMS
        Reusable Object Access and Management System
        
ROC
        RAID On a Chip (RAID)
        
ROCF
        Remote Object Class Factory
        
ROD
        Rewritable Optical Disk (OD)
        
ROFL
        Roar Out From Laughing (slang, Usenet, IRC)
        
ROLAP
        Relational OnLine Analytical Processing (OLAP, DB)
        
ROLC
        Routing Over Large Clouds
        
ROM
        Read Only Memory (ROM)
        
ROMBIOS
        Read-Only Memory - Basic Input Output System (ROM, BIOS), "ROM-BIOS"
        
ROMC
        Required Operational Messaging Characteristics
        
ROP
        Remote Operations Service (IBM, OS/2)
        
ROS
        Read-Only Storage
        
ROS
        Resident Operating System (OS)
        
ROSE
        Remote Operations Service Element (OSI, RPC)
        
ROTFL
        Rolling On The Floor Laughing (slang, Usenet, IRC)
        
ROTFLBTC
        Rolling On The Floor Laughing and Biting The Carpet (slang, Usenet, IRC)
        
ROTFLMAO
        Rolling On The Floor Laughing My Ass Off (slang, Usenet, IRC)
        
RP
        Relay Party (IRC)
        
RP
        Rendezvous Point (PIM, Multicast)
        
RPA
        Remote Phrase Authentication
        
RPC
        Remote Procedure Call (Sun, Xerox, OSF, ECMA, RFC 1831)
        
RPC2
        Region code Playback Control phase 2 (DVD), "RPC-2"
        
RPCL
        Remote Procedure Call Language (ONC, Sun)
        
RPE
        Remote Peripheral Equipment
        
RPELTP
        Regular Pulse Excitation with Long-Term Prediction [loop] (LPC), "RPE-LTP"
        
RPF
        RePeat active File (IBM, VM/ESA, CP)
        
RPF
        Reverse Path Forwarding (PIM, Multicast)
        
RPG
        Report Program Generator
        
RPL
        Remote Program Load
        
RPL
        Requested Privilege Level
        
RPL
        Resident Programming Language
        
RPM
        Radio Packet Modem (Motorola)
        
RPM
        Redhat Package Manager (Linux)
        
RPM
        Remote Port Module (Ascend)
        
RPN
        Reverse Polish Notation
        
RPP
        Relative Processor Performance (CPU, Cray)
        
RPS
        Realtime Programming System (OS, IBM)
        
RQBE
        Relational Query By Example (DB, QBE)
        
RR
        Radio Resource management (MM, CM, GSM, mobile-systems)
        
RRAS
        Routing and Remote Access Service (MS, Windows NT)
        
RRCM
        Reservation Request Control Mechanism (DQDB)
        
RRDS
        Relative Record Data Set (VSAM)
        
RRIP
        Rock Ridge Interchange Protocol (CD, Unix)
        
RRZE
        Regionales RechenZentrum Erlangen (org.)
        
RRZN
        Regionales RechenZentrum fuer Niedersachsen (org.)
        
RS
        Recommended Standard
        
RS
        Registry Service (DCE)
        
RSA
        Random Scheduling Algorithm [protocol]
        
RSA
        Reference System Architecture
        
RSA
        Reusable Software Assets
        
RSA
        Rivest, Shamir and Adleman (cryptography, RSA)
        
RSAC
        Recreational Software Advisory Council (org.)
        
RSAP
        Remote Service Access Point (SAP)
        
RSAT
        Reliability and System Architecture Testing
        
RSCS
        Remote Source Control System
        
RSCS
        Remote Spooling Communications Subsystem (IBM, VM, NJE)
        
RSDP
        Root System Description Pointer (ACPI)
        
RSDT
        Root System Description Table (ACPI)
        
RSE
        Removable Storage Elements
        
RSE
        Research and Systems Engineering
        
RSF
        Remote Support Facility
        
RSF
        ReStart active File (IBM, VM/ESA, CP)
        
RSFD
        Retrieve Subsequent File Descriptor (IBM, VM/ESA, CP)
        
RSFDNPR
        Retrieve Subsequent File Descriptor Not Previously Retrieved (IBM, VM/ESA, CP)
        
RSH
        Remote SHell (Unix, BSD, Shell)
        
RSH
        Restricted SHell (Unix, Shell)
        
RSI
        Repetitive Strain Injury
        
RSIS
        Relocateable Screen Interface Specification
        
RSLM
        Remote Subscriber Line Module
        
RSM
        Remote Switching Module
        
RSN
        Real Soon Now (slang)
        
RSP
        Reality Signal Processor (Nintendo)
        
RSPC
        Reed Solomon Product Code (SDD), "RS-PC"
        
RSSCP
        Remote System Services Control Point (SSCP)
        
RSTS
        Resource Sharing Time Sharing (DEC)
        
RSTSE
        Resource System Time Sharing/Enhanced (DEC), "RSTS/E"
        
RSU
        Remote Software Update (IBDM, OS/2, ...)
        
RSU
        Remote Switching Unit
        
RSVP
        Resource reSerVation Protocol (IP)
        
RSX
        Realistic Sound eXperience (Intel, audio)
        
RSX11
        Resource Sharing eXecutive - 11 (DEC, OS, PDP 11), "RSX-11"
        
RSX3D
        Realistic Sound eXperience - 3D (Intel, audio, VRML), "RSX-3D"
        
RT
        Register Transfer
        
RT
        Remote Terminal
        
RT
        Research and Technology, "R&T"
        
RT
        Routing Type
        
RTA
        Rapid Thermal Annealling (IC, MOSFET)
        
RTA
        Real-Time Accelerator
        
RTAM
        Remote Teleprocessing Access Method
        
RTB
        Read Tape Binary
        
RTBM
        Real Time Bit Mapping
        
RTC
        Real Time Clock
        
RTC
        Real-Time Command
        
RTCP
        Real Time Control Protocol (RTP)
        
RTCS
        Real Time Computer System
        
RTCU
        Real Time Control Unit
        
RTD
        Real Time Display
        
RTDAT
        RealTime Deformation And Tessellation [engine] (3D, Shiny), "RT-DAT"
        
RTDHS
        Real Time Data Handling System
        
RTE
        Real Time Execution
        
RTE
        Real Time Executive (OS, HP, HP 2000)
        
RTE
        Remote Terminal Emulation
        
RTE
        Run Time Environment
        
RTE6VM
        Real Time Executive - 6 / Virtual Memory (OS, HP, RTE, HP 1000), "RTE-6/VM"
        
RTEX
        Real Time EXecutive (OS, Interdata)
        
RTF
        Rich Text Format
        
RTFF
        Read The Fucking FAQ (slang, Usenet)
        
RTFM
        Read The Flaming / Fucking Manual (slang, Usenet, IRC)
        
RTG
        Real Time Gambling
        
RTG
        Real Time Geometry (manufacturer)
        
RTG
        Routing Table Generator
        
RTI
        ReTurn from Interrupt
        
RTL
        Real Time Language
        
RTL
        Register Transfer Language (GCC)
        
RTL
        Resistor-Transistor Logic
        
RTL
        RunTime Library
        
        RTLinux      Real-Time Linux (Linux)
        
RTM
        Registered Transfer Module
        
RTM
        Release To Manufacture / Market
        
RTM
        Remote Test Module
        
RTMOS
        Real Time Multiprogramming Operating System (OS, GE)
        
RTMP
        Routing Table Maintenance Protocol (AppleTalk)
        
RTMS
        Real Time Multiprogramming System (???) (OS)
        
RTOS
        Real Time Operating System (OS, Interdata, Prime, ...)
        
RTOS16
        Real Time Operating System - 16 (OS, Digico), "RTOS-16"
        
RTOS360
        Real Time Operating System /360 (IBM, OS, S/360), "RTOS/360"
        
RTOSUH
        Real Time Operating System - Universitaet Hannover (OS), "RTOS-UH"
        
RTP
        Real Time Protocol (Internet, RFC 1889/1890, RTCP)
        
RTS
        Real Time System
        
RTS
        Reliable Transfer Service (OSI)
        
RTS
        Request To Send (MODEM, RS-232)
        
RTS
        Residual Time Stamp
        
RTSE
        Reliable Transfer Service Element (OSI)
        
RTSM
        RealTime System Manager
        
RTSP
        Real Time Streaming Protocol (TV, WWW, UDP, TCP/IP, RDP, Multicast)
        
RTT
        Round-Trip Time
        
RTTI
        Run-Time Type Identification (ANSI)
        
RTTM
        Round-Trip Time Measurements (TCP, satellite)
        
RTTS
        Real Time Task Scheduler (OS, August Systems)
        
RTTY
        Radio Tele TYpe
        
RTU
        Real Time Unix (Unix)
        
RTUX
        Real Time UniX (OS, Emerge Systems)
        
RTV
        Real Time Video
        
RTVBR
        RealTime Variable Bit Rate (VBR, ATM), "rt-VBR"
        
RTX
        Real Time eXecutive (OS)
        
RTX16
        Real Time eXecutive - 16 (OS, Honeywell, ...), "RTX-16"
        
RUA
        Remote User Agent
        
RUAC
        Remote User Access Centers
        
RUI
        Reality User Interface
        
RUOW
        Remote Unit Of Work (DRDA, IBM), "RUoW"
        
RUS
        Rechenzentrum der Universitaet Stuttgart (org., Uni Stuttgart, Germany)
        
RVD
        Remote Virtual Disk
        
RW
        Read/Write (I/O), "R/W"
        
RWCP
        Real World Computing Partnership (org., Japan)
        
RWS
        Remote WinSock (Windows, TCP/IP)
        
RZ
        RechenZentrum
        
RZ
        Return-to-Zero [recording]
        
RZG
        RechenZentrum Garching
        

        
        









        

S360
        System /360 (IBM), "S/360"
        
S370
        System /370 (IBM), "S/370"
        
SA
        Source [MAC] Address (SNA, Token Ring, ATM, FDDI, ...)
        
SA
        Storage Array
        
SA
        Structured Analysis / Strukturierte Analyse (CASE)
        
SA
        System Administrator
        
SA
        Systems Analyst
        
SAA
        Standard Application Architecture (IBM)
        
SAA
        Standards Association of Australia (org., Australia)
        
SAAL
        Signalling ATM Adaptation Layer (ATM)
        
SABB
        Storage Array Building Block
        
SABM
        Set Asynchronous Balanced Mode (LABM, LAPB, HDLC)
        
SABME
        Set Asynchronous Balanced Mode Extension (SABM)
        
SABRE
        Semi-Automatic Business Related Environment (OS, IBM 7090)
        
SAC
        Service / Special Area Code
        
SAC
        Single Attachment Concentrator (FDDI)
        
SAC
        Strict Avalanche Criterion (cryptography)
        
SACCH
        Slow Associated Control CHannel (GSM, DCCH, mobile-systems)
        
SACT
        SPARC Application Conformance Test (SI, SPARC)
        
SAD
        Serial Analog Delay
        
SADF
        Semi-Automatic Document Feeder
        
SADT
        Structured Analysis and Design Techniques (SA)
        
SAF
        Service Access Facilities (Unix)
        
SAFE
        Security And Freedom through Encryption [law] (USA, cryptography)
        
SAFTE
        SCSI Accessed Fault-Tolerant Enclose (SCSI, RAID, Intel, NStor), "SAF-TE"
        
SAG
        SQL Access Group (org., manufacturer, DB)
        
SAGE
        Semi-Automatic Ground Environment system (OS, IBM AN/FSQ7, mil.)
        
SAGE
        Software Aided Group Environment (GSS, NUS)
        
SAHF
        Store AH Into Flags (assembler)
        
SAIL
        Stanford Artificial Intelligence Laboratory [language] (USA)
        
SAL
        Security Access List
        
SAL
        Semware Applications Language (Semware)
        
SAL
        Symbolic Assembly Language (assembler)
        
SAL
        System Abstraction Layer
        
SALT
        Script Application Language for Telix
        
SALT
        Suse Advanced Linux Technology (Suse, Linux)
        
SALU
        Structured Assembly Language Utilities
        
SAM
        SCSI-3 Architecture Model
        
SAM
        Security Accounts Manager
        
SAM
        Sequential Access Method / Mode (SAM, DAM)
        
SAM
        Sort And Merge
        
SAM
        Symantec Anti-virus for Macintosh (Apple)
        
SAM
        System Activity Monitor
        
SAMI
        Synchronized Accessible Media Interchange (MS)
        
SAN
        Schulen ans Netz [e.v.] (org.)
        
SAN
        Storage Area Networks
        
SANE
        Scanner Access Now Easy (Open-Source)
        
SANE
        Standard Apple Numeric Environment (Apple)
        
SANET
        Slowak Academic NETwork (org., Network)
        
SAO
        Source Address Omitted [flag] (CATNIP)
        
SAP
        Service Access Point (OSI)
        
SAP
        Service Advertising Protocol (Novell, Netware, IPX)
        
SAP
        Session Announcement Protocol (Internet, RFC 2974)
        
SAP
        Symbolic Assembler Program (IBM, IBM 704)
        
SAP
        SystemAnalyse und Programmentwicklung (manufacturer, predecessor)
        
SAP
        Systems, Applications and Products [in data processing] [ag] (manufacturer)
        
SAR
        Segmentation And Reassembly
        
SAR
        Store Address Register (IC)
        
SARAH
        Standard Automated Remote-to-AUTODIN Host (AUTODIN, mil.)
        
SARPDU
        Segmentation And Reassembly Protocol Data Unit (ATM, PDU), "SAR PDU"
        
SART
        Structured Analysis / Real Time (SA, CASE), "SA/RT"
        
SARTS
        Switched Access Remote Test System
        
SAS
        Session Active Screen (IBM)
        
SAS
        Simulation Automation System
        
SAS
        Single Attachment Station (FDDI)
        
SAS
        Statistical Analysis System
        
SASE
        Specific Application Service Element (ISO, OSI, CASE)
        
SASI
        Shugart Associates System Interface
        
SAST
        South Australia Standard Time [+0930] (TZ)
        
SAT
        Standard AUTODIN Terminal (AUTODIN, mil.)
        
SAT
        Summed Area Table (3D, MIP)
        
SATAN
        Security Administrator Tool for Analyzing Networks (Internet)
        
SATCOM
        SATellite COMmunications
        
SATF
        Shared Access Transport Facility
        
SAU
        Secure Access Unit
        
SAX
        Simple API for XML (API, XML)
        
SAX
        SUSE Advanced X [configuration tool] (SUSE, Linux)
        
SB
        Sound Blaster [audio card] (audio)
        
SBA
        SideBand Address [port / bus] (AGP)
        
SBA
        Standards-Based Architectures
        
SBA
        Synchronous Bandwidth Allocation (SMT, FDDI)
        
SBA
        System For Business Automation
        
SBC
        SCSI Block Commands (SAM)
        
SBC
        Single Board Computer
        
SBC
        Small Business Computer
        
SBCCS
        Single Byte Command Code Set [protocol]
        
SBCS
        Single Byte Character Set (ASCII, DBCS)
        
SBF
        Sequential Block Filemanager (OS-9)
        
SBH
        Secure Backbone Hub (Accton)
        
SBI
        Storage Bus Interconnect
        
SBI
        Synchronous Bus Interface
        
SBIS
        Sustaining Base Information System
        
SBL
        Super BASIC Language (BASIC)
        
SBLC
        Sustaining Base Level Computer
        
SBMS
        Southwestern Bell Mobile Service
        
SBP
        SCSI-3 serial Bus Protocol (SAM)
        
SBS
        Small Business Server
        
SBUS
        Sun [i/o interface] BUS (Sun, SPARC), "SBus"
        
SC
        SubCommittee (ISO, TC, IEC, ...)
        
SCA
        Scalable Cooperative Architecture
        
SCA
        Software Corporation of America (manufacturer, USA)
        
SCA
        Synchronous Clock Adjustment
        
SCAF
        Service Control Agent Function (IN)
        
SCAI
        Scandinavian Conference on Artificial Intelligence (conference, FAIS, AI)
        
SCAM
        SCSI Configured AutoMatically (SCSI)
        
SCAMC
        Symposium on Computer Applications in Medical Care (conference)
        
SCAN
        Switched-Circuit Automatic Network
        
SCB
        Subsystem Control Block (OS/2, IBM)
        
SCC
        SCSI Controller Commands (SAM)
        
SCC
        Serial Communication Controller
        
SCC
        Serial Controller-Chip (IC)
        
SCC
        Softarc Certified Consulter (SoftArc)
        
SCC
        Specialized Common Carrier
        
SCC
        Standards Council of Canada (org., Canada)
        
SCC
        Storage Connecting Circuit
        
SCCP
        Signaling Connection Control Part (MSC, GSM, mobile-systems)
        
SCCS
        Source Code Control System (Unix, AT&T, CM)
        
SCCS
        Specialized Common Carrier Service
        
SCCS
        Switching Control Center System
        
SCD
        SPARC Compliance Definition (SI, SPARC)
        
SCDE
        Significant CALS Data Elements
        
SCDMS
        Society for Clinical Data Management Systems (org., USA)
        
SCE
        Structure Chart Editor
        
SCEF
        Service Creation Environment Function (IN)
        
SCEIO
        Societe Canadienne pour l'Etude de l'Intelligence par Ordinateur (org., Canada, AI)
        
SCF
        Selective Call-Forwarding
        
SCF
        Sequential Character Filemanager (OS-9)
        
SCF
        Service Control Function (IN)
        
SCG
        Security Classification Guide
        
SCH
        Synchronization CHannel (GSM, mobile-systems)
        
SCI
        Scalable Coherent Interface (ANSI)
        
SCID
        Service Channel IDentifier
        
SCIT
        Semi-Conductor and Interconnect Technologies
        
SCL
        System Control Language
        
SCM
        Segment Control Module
        
SCM
        Service Circuit Modul Mil., Germany
        
SCM
        Service Control Manager (Windows NT)
        
SCM
        Small Core Memory
        
SCM
        Software Configuration Management
        
SCMP
        Stream Control Message Protocol (ST2)
        
SCMS
        ??? [scrambling] (DAT)
        
SCMS
        Serial Copy Management System
        
SCN
        Specifications Change Notice
        
SCNR
        Sorry, Could Not Resist (slang, Usenet)
        
SCO
        Santa Cruz Operation (manufacturer, Unix)
        
SCOOPS
        SCheme Object Oriented Programming System (OOP)
        
SCOPE
        SCalable Object Processing Environment (Creamware)
        
SCOPE
        Simple COmmunications Programming Environment (DFUe)
        
SCOPE
        Supervisory Control Of Program Execution (OS, CDC 6000)
        
SCP
        Secondary Communications Processors
        
SCP
        Service Control Point (OSI)
        
SCP
        Standard Configuration Profile (MODEM)
        
SCP
        System Control Program (OS)
        
SCPC
        Single Channel Per Carrier
        
SCPDOS
        Seattle Computer Products Dis Operating System (OS, DOS, MS-DOS, predecessor), "SCP-DOS"
        
SCR
        Selective Call Rejection
        
SCR
        Sustainable Cell Rate (UNI, ATM, VBR)
        
SCRI
        Supercomputer Computations Research Institute (org., USA, HPC)
        
SCS
        [systimax] Structured Cabling System (AT&T)
        
SCS
        Silicon Controlled Switch
        
SCS
        Singapore Computer Society (org., Singapur)
        
SCS
        Small Computer System
        
SCS
        SNA Character String (IBM)
        
SCS
        Switch Control Software (ForeRunner, ATM)
        
SCSA
        Signal Computing System Architecture
        
SCSA
        Sun Common SCSI Architecture (Sun)
        
SCSI
        Small Computer Systems Interface (SCSI)
        
SCSL
        Sun Community Source License (Sun)
        
SCSU
        Standard Compression Scheme for Unicode (Unicode)
        
SCT
        Subroutine Call Table
        
SCTP
        Stream Control Transmission Protocol (IETF)
        
SCTS
        Secondary Clear to Send
        
SCU
        Selector Control Unit
        
SCU
        System Control Unit (CPU, POWER)
        
SCX
        Specialized Communications eXchange
        
SD
        Self-Describing [file] (HP)
        
SD
        Starting Delimiter (FDDI, Token Ring)
        
SD
        Structured Design (CASE)
        
SD
        Super Density [disk] (CD, Toshiba, Time Warner)
        
SDA
        Screen Design Aid (IBM, ADT)
        
SDA
        Shared Data Architecture
        
SDA
        Software Design Automation
        
SDA
        Source Data Automation
        
SDA
        Swappable Data Area (DOS)
        
SDA
        System Display Architecture
        
SDAV
        Systems Design Automation Vendor
        
SDC
        Sample Data Collection
        
SDC
        Secure Digital Card (PDA)
        
SDC
        Software Development Control [system] (CMU, CM)
        
SDC
        Software Distribution Center
        
SDCCH
        Stand-alone Dedicated Control CHannel (GSM, DCCH, mobile-systems)
        
SDCD
        Secondary Data Carrier Detect
        
SDD
        Software Design Document
        
SDD
        Super Density Disk (Toshiba, Time Warner, ...)
        
SDDAS
        Southwest research Data Display and Analysis System
        
SDDI
        Shielded Distributed Data Interface (FDDI, STP)
        
SDE
        Software Development Environment
        
SDF
        Screen Definition Facility
        
SDF
        Standard Data Format
        
SDF
        System Dialog Facility (BS2000)
        
SDH
        Synchronous Digital Hierarchy (FDDI, ATM)
        
SDI
        Single Document Interface
        
SDI
        Slovensko Drustvo Informatika (org., Slowakien)
        
SDI
        Source Data Information
        
SDI
        Standard Data Interface
        
SDI
        Standard Disk Interconnect
        
SDI
        Standard Disk Interface
        
SDI
        Standard Drive Interface
        
SDI
        Storage Device Interconnect
        
SDI
        Storage Device Interface (Novell, Netware, SMS)
        
SDI
        Super Data Interchange
        
SDIF
        SGML Document Interchange Format (SGML, ISO, IS 9069)
        
SDIF
        System Independent Data Format (Novell, SMS)
        
SDILINE
        Selective Dissemination of Information onLINE
        
SDIMM
        Single [RAS] Dual Inline Memory Module (DIMM, RAS), "S-DIMM"
        
SDIS
        Switched Digital Integrated Service
        
SDK
        Software Development Kit (MS)
        
SDL
        Specification and Description Language (CCITT)
        
SDL
        System Design Language
        
SDLC
        Synchronous Data Link Control (IBM, SNA)
        
SDLGR
        Specification and Description Language / Graphical Representation, "SDL/GR" 
        
SDLLC
        Synchronous Data Link Control Conversion (SNA, IBM)
        
SDLP
        Standard Device Level Protocol
        
SDM
        ??? [benchmark] (DB, SPEC)
        
SDM
        Short Data Message
        
SDM
        Spatial Data Management
        
SDMA
        Storage Device Migration Aid
        
SDMI
        Secure Digital Music Initiative (org.)
        
SDMS
        SCSI Device Management System (BIOS)
        
SDN
        Software Defined Network
        
SDN
        Software Distribution Net (FidoNet)
        
SDNS
        Secure Data Network Service / System (USA, mil.)
        
SDOC
        Selective Dynamic Overload Controls
        
SDOS
        Software Dynamics Operating System (OS)
        
SDP
        Service Delivery Point
        
SDP
        Session Description Protocol (RFC 2327)
        
SDP
        Software Development Plan
        
SDP
        Specialized Data Point (IN)
        
SDP
        Streaming Data Procedure
        
SDR
        Service DiRectory [tool] (SAP)
        
SDR
        Shared Data Research
        
SDR
        Signal-to-Distortion Ratio
        
SDR
        Single Data Rate (GDR)
        
SDR
        Store Data Register (IC)
        
SDR
        Streaming Data Request
        
SDR
        System Design Review
        
SDRAM
        Synchronous Dynamic Random Access Memory (RAM, DRAM, IC, Intel, Samsung)
        
SDRP
        Source Demand Routing Protocol
        
SDRSDRAM
        Single Data Rate Synchronous Dynamic Random Access Memory (DRAM, RAM, IC), "SDR-SDRAM"
        
SDS
        SubDivision Surfaces (3D)
        
SDS
        Switched Data Service
        
SDS
        Synchronous Data Set
        
SDS
        Sysops Distribution System (BBS)
        
SDSAF
        Switched Digital Services Applications Forum (org.)
        
SDSC
        San Diego Supercomputer Center (org., USA)
        
SDSC
        Synchronous Data Set Controller
        
SDSCNET
        San Diego Supercomputer Center NETwork (network, USA), "SDSCnet"
        
SDSL
        Single line Digital Subscriber Line (DSL)
        
SDSMA
        Slotted Digital Sense Multiple Access (MODACOM), "S-DSMA"
        
SDSN
        Secure Data System Network
        
SDT
        Software Development Tools
        
SDT
        Source Data Terminal
        
SDT
        Systems Development Tool
        
SDTP
        [PPP] Serial Data Transport Protocol (PPP, RFC 1963)
        
SDU
        Service Data Unit (OSI)
        
SDU
        Software Distribution Utilities (IBM, HP)
        
SDV
        Switched Digital Video (VOD)
        
SDX
        Storage Data ACceleration (ATAPI, WD, CD, DVD)
        
SE
        Service / Systems Engineer
        
SE
        Software Engineering
        
SE
        Standard / Special Edition (IBM, OS/2)
        
SE
        Switching Element
        
SE
        System Extension
        
SEA
        Self-Extracting Archive
        
SEA
        Society for Electronic Access (org.)
        
SEAC
        Standards Eastern Automatic Computer
        
SEAL
        Simple and Efficient Adaptation Layer (ATM)
        
SEAP
        Service Element Access Point
        
SECAM
        SEquentiel Couleur Avec Memoire
        
SECB
        Severely Errored Cell Block (UNI)
        
SECC
        Single Edge Connector Case (CPU)
        
SED
        Stream EDitor (Unix)
        
SEDAS
        Standardisiertes Einheitliches DatenAustauschSystem (EDI)
        
SEE
        Societe des Electriciens et Electroniciens (org., France)
        
SEE
        Software Engineering Environments
        
SEE
        Systems Equipment Engineering
        
SEF
        Source Explicit Forwarding
        
SEFS
        Severely Errored Framing Seconds (DS1/E1, DS3/E3)
        
SEH
        Structured Exception Header
        
SEI
        Software Engineering Institute
        
SEL
        Software Engineering Laboratory
        
SEL
        Standard Elektrik Lorenz [ag] (manufacturer)
        
SELHPC
        South East London - High Performance Computing [centre] (org.), "SEL-HPC"
        
SEM
        Server Enhancement Module
        
SEM
        Standard Error of the Mean
        
SEP
        Someone Else's Problem (slang, Usenet, IRC)
        
SEPP
        Secure Electronic Payment Protocol (banking, IBM, Netscape, GTE)
        
SEQUEL
        Structured English QUEry Language (IBM, DB, SQL, predecessor)
        
SERM
        Structured Entity Relationship Model (DB, ERM)
        
SERT
        Security Emergency Response Team (org., Australia, Internet)
        
SES
        Security Enabling Services (IBM)
        
SES
        Severely Errored Seconds (DS1/E1)
        
SESAM
        Synergetische Erkennung mittels Standbild, Akustik und Motorik (IIS)
        
SET
        Secure Electronic Transactions (IBM, Visa, MS, IBM, Mastercard, Netscape, banking)
        
SET
        Software Engineering Technology
        
SET
        Standard d'Echange et de Transfert (AFNOR, France)
        
SETA
        Systems Engineering and Technical Assistance
        
SETL
        SEt Theory Language (New York Uni.), "SetL"
        
SETP
        Secure Electronic Transactions Process
        
SETP
        Stream Environment Transport Protocol
        
SEU
        Software-Entwicklungs-Umgebung (CASE)
        
SEU
        Source Entry Utility (IBM, ADT)
        
SF
        Service Feature (IN)
        
SF
        Sign Flag (assembler)
        
SF
        Standard Form
        
SF
        Switching Fabric
        
SFBI
        Shared Frame Buffer Interconnect
        
SFD
        Simple Formattable Document (CCITT, MHS, X.420)
        
SFD
        Start Frame Delimiter (ethernet)
        
SFD
        Symbolic File Directory
        
SFF
        Small Form Factor [committee] (org.)
        
SFMJI
        Sorry For My Jumping In (slang, Usenet, IRC)
        
SFP
        System File Protection (MS, WIndows)
        
SFPRNSB
        Select a File for Processing and Read Next Spool Buffer (IBM, VM/ESA, CP)
        
SFPS
        Secure Fast Packet Switching (Cabletron)
        
SFQL
        Structured Full-text Query Language
        
SFS
        Shared File System (IBM. CMS, VM/ESA)
        
SFS
        Stepless Frequency Selection
        
SFS
        Suomen Standardisoimisliitto [Standards Association of Finland] (org., Finland)
        
SFT
        System Fault Tolerance (Novell)
        
SFT
        System File Table (DOS)
        
SFTP
        Screened Foiled Twisted Pair [cable] (UTP, TP)
        
SFTP
        Simple File Transfer Protocol (RFC 913)
        
SFUG
        Security Features User's Guide
        
SG
        Signal Ground (MODEM)
        
SGA
        Shared Global Array (DEC, VMS)
        
SGC
        SCSI Graphic Commands (SAM)
        
SGI
        Silicon Graphics Incorporated (manufacturer, SGI)
        
SGM
        SeGmentation Message
        
SGML
        Standard Generalized Markup Language (ISO 8879, JTC1, RFC 1874, SGML)
        
SGMLB
        Standard Generalized Markup Language - Binary version (SGML), "SGML-B"
        
SGMP
        Simple Gateway Monitoring Protocol (RFC 1028)
        
SGRAM
        Synchronous Graphics Random Access Memory (DRAM, RAM)
        
SGSN
        Serving GPRS Support Node (GPRS, mobile-systems)
        
SGT
        Surrounding Gate Transistor (IC)
        
SGTSI
        Semi-Graphical Tree Structure Interface
        
SHA
        Secure Hash Algorithm (cryptography, NIST)
        
SHA
        Super High Aperture [LCD] (LCD)
        
SHED
        Segmented Hypergraphics EDitor (MS, Windows, ADT)
        
SHF
        Super-High Frequency
        
SHTSI
        Somebody Had To Say It (slang, Usenet)
        
SHTTP
        Secure HyperText Transfer Protocol (HTTP), "S-HTTP" 
        
SHV
        Standard High Volume [motherboard] (SMP, Intel)
        
SI
        Schweizer Informatikergesellschaft (org., Switzerland)
        
SI
        Skrslutaeknifelags Islands (org., Iceland)
        
SI
        Source Index [register] (CPU, Intel, assembler)
        
SI
        SPARC International (org., manufacturer)
        
SI
        System Information
        
SIA
        Semiconductor Industry Association (org., USA)
        
SIAM
        Society for Industrial and Applied Mathematics (org., USA)
        
SIB
        Service Independent building Block (IN)
        
SIBO
        SIxteen Bit Organizer or SIngle Board Organizer (Psion, PDA)
        
SIC
        Silicon Integrated Circuit
        
SIC
        Standard Industry Classification
        
SIC
        Subject Indicator Code
        
SICE
        ??? (org.)
        
SICS
        Swedish Institute of Computer Sciences (org., Sweden)
        
SID
        Security IDentifier
        
SID
        Signaling IDentifier
        
SID
        Society for Information Displays (org.)
        
SID
        SWIFT Interface Device (SWIFT)
        
SID
        System IDentification
        
SIDF
        System Independent Data Format (Novell, SMS)
        
SIDM
        Serial Impact Dot Matrix [printer]
        
SIDR
        Service Independent Data Requester (Novell, Netware)
        
SIETEM
        Siemens TTCN Test Manager (TTCN, Tektronix, SNI)
        
SIF
        Significant Pel Field (MPEG)
        
SIFT
        Software Implemeted Fault Tolerance (HIFT)
        
SIFTUFT
        Sender-Initiated File Transfer/Unsolicited File Transfer (RFC 1440), "SIFT/UFT"
        
SIG
        Special Interest Group
        
SIGART
        [ACM] Special Interest Group on ARTificial intelligence (org., ACM, AI)
        
SIGBIT
        Special Interest Group on Business Information Technology
        
SIGCAT
        Special Interest Group for CD-ROM Applications Technology (CD)
        
SIGCPR
        Special Interest Group on Computer Personal Research (org., ACM)
        
SIGCSE
        Special Interest Group on Computer Science Education (org., ACM)
        
SIGDA
        Special Interest Group on Design Automation (org., ???)
        
SIGG
        SIGnaturGesetz DFUe, Germany, "SigG"
        
SIGL
        SIGnal Line (REXX)
        
SIGMA
        Software Industrialized Generator and Maintenance Aids system (MITI)
        
SIGNC
        Special Internet Group Name Cache
        
SIGPLAN
        Special Interest Group for Programming LANguages
        
SIGV
        SIGnaturVerordnung (DFUe), "SigV"
        
SIGWEB
        Special Interest Group on the world wide WEB (org., UK)
        
SII
        Static Invocation Interface
        
SIIA
        Software and Information Industry Association (org., USA)
        
SILS
        Secure Interoperable LAN/MAN Standard (LAN, MAN)
        
SILS
        Standard for Interoperable LAN Security (LAN)
        
SIM
        Signal Interface Module
        
SIM
        Subscriber Identity Module (GSM, mobile-systems)
        
SIMD
        Single Instruction [stream], Multiple Data [stream] (CPU)
        
SIMDIS
        SIMulation DISposition (MBAG)
        
SIMIS
        SIcheres MIkroprozessor System (SNI)
        
SIMM
        Single Inline Memory Module (IC)
        
SIMNET
        SIMulation NETwork (network)
        
SIO
        Simultan Input Output (QMS)
        
SIP
        SCSI-3 Interlocked Protocol (SAM)
        
SIP
        Session Initiation Protocol (IETF, VOIP)
        
SIP
        Simulated Input Processor
        
SIP
        SMDS Interface Protocol (SMDS)
        
SIP
        Strategische InformationsPlanung (IM)
        
SIP
        Symbolic Input Program
        
SIPC
        Simply Interactive Personal Computer
        
SIPO
        Serial In Parallel Out
        
SIPP
        Simple Internet Protocol Plus (IP, IPV6, RFC 1710, Internet)
        
SIPP
        SImple Polygone Processor (Unix)
        
SIPP
        Single Inline Package Pin (IC)
        
SIPRNET
        Secret IP Router NETwork (DISN, mil.)
        
SIQ
        Single Input Queue (IBM, OS/2)
        
SIR
        Save Instruction Recognition
        
SIR
        Selective Information Retrieval
        
SIR
        Serial InfraRed (HP)
        
SIR
        Sicherheit im Rechenzentrum (TPS)
        
SIR
        Statistical Information Retrieval
        
SIR
        Sustained Information Rate (SMDS)
        
SIRENE
        Supplementary Information REquest at the National Entry (SIS, Europe)
        
SIS
        Schengen Information System (police, Europe)
        
SIS
        Silicon Integrated Systems [corp.] (manufacturer, Taiwan)
        
SIS
        Software Information Services
        
SIS
        Stellen-Informations-Service (WWW)
        
SIS
        Strategic Information System
        
SISAL
        Streams and Iteration in a Single-Assignment Language
        
SISD
        Single Instruction [stream], Single Data [stream] (CPU)
        
SIT
        institut fuer SIchere Telekommunikation (GMD, org.)
        
SITD
        Still In The Dark (slang)
        
SIWPS
        Simple Internet White Pages Service (Internet)
        
SIZ
        Sparkassen-Informatik-Zentrum (org., banking)
        
SJF
        Shortest Job First
        
SKIA
        Secure Key Issuing Authority (TESS)
        
SKIP
        Simple Key-management for Internet Protocols (Internet, cryptography, Sun)
        
SLA
        Service Level Agreement
        
SLAM
        Simulation Language for Alternative Modeling
        
SLC
        Service Level Contract
        
SLC
        Simple Line Code [modulation]
        
SLD
        Second Level DOMAIN (Internet, ICANN)
        
SLDC
        Synchronous Data Link Control
        
SLDRAM
        SyncLink Dynamic Random Access Memory (DRAM, RAM)
        
SLE
        Screen List Editing
        
SLED
        Single Large Expensive Drive
        
SLFP
        Shared Frame Buffer Interconnect (ATI, Intel)
        
SLI
        Scan Line Interleave (3D)
        
SLIC
        Serial Link and Interrupt Controller (TSMP, Wyse)
        
SLIC
        Subscriber Line Interface Circuit (PBX)
        
SLIP
        Serial Line Internet Protocol (Internet, RFC 1055), "SL/IP"
        
SLMR
        Silly Little Mail Reader
        
SLP
        Service Location Protocol (IP)
        
SLP
        Service Logic Program (IN)
        
SLP
        Symposium on Logic Programming (conference)
        
SLQ
        Super Letter Quality [fonts] (Star)
        
SLR
        Scalable Linear Recording (Streamer, Tandberg)
        
SLS
        Softlanding Linux System (Linux)
        
SLS
        Storage Library System
        
SLSI
        Super Large Scale Integration
        
SLT
        Solid-Logic Technology
        
SLU
        Secondary Logical Unit
        
SLU
        Serial Line Unit
        
SM
        Smart Media [card]
        
SM
        Sparse Mode (PIM, Multicast)
        
SMA
        Shared Memory Architecture
        
SMA
        Standardization Management Activity
        
SMAE
        System Management Application Entity (OSI)
        
SMAF
        Service Management Agent Function (IN)
        
SMAP
        System Management Application Process (OSI)
        
SMART
        Self-Monitoring, Analysis and Reporting Technology (HDD, IDE, Conner, IBM, Quantum, Seagate, WD), "S.M.A.R.T."
        
SMASE
        System Management Application Service Element (OSI)
        
SMB
        Server Message Block [protocol] (IBM, Intel, MS)
        
SMB
        Small Medium Business and enterprise [market]
        
SMB
        Standards Managing Board (PIMA, I3C)
        
SMB
        System Management Bus
        
SMBA
        Shared Memory Buffer Architecture (Intel)
        
SMBP
        Sever Message Block Protocol
        
SMC
        SCSI-3 Medium changer Commands (SAM, SCSI)
        
SMC
        Standard Microsystems Corporation (manufacturer)
        
SMD
        Storage Module Device
        
SMD
        Surface Mounted Device
        
SMD
        System Management Bus (Intel)
        
SMDAC
        Single MAC Dual Attached Concentrator (FDDI, DAC, MAC)
        
SMDI
        Storage Module Disk Interconnect
        
SMDL
        Standard Music Description Language (ISO, IEC, CD 10743)
        
SMDR
        Station Message Detail Recording
        
SMDR
        Storage Management Data Requester (Novell, Netware, SMS)
        
SMDS
        Switched Multimegabit Data Service (BELLCORE)
        
SMDSCNM
        SMDS Customer Network Management (SMDS), "SMDS CNM"
        
SME
        Society of Manufacturing Engineering (org., USA)
        
SME
        Storage Management Engine (Novell, Netware, SMS)
        
SMF
        Service Management Function (IN)
        
SMF
        Single Mode Fiberoptic cable (FDDI)
        
SMF
        Standard MIDI File (MIDI)
        
SMFA
        Special / System Management Functional Area (OSI)
        
SMFF
        Script Mathematical Formula Formatter
        
SMG
        Special Mobile Group (GSM, org., mobile-systems)
        
SMI
        Structure and identification of Management Information (OSI, RFC 1155/1902)
        
SMI
        Sun Microsystems Inc. (manufacturer)
        
SMI
        System Management Interrupt (SMB)
        
SMI
        System Monitoring Interface (Informix, DB)
        
SMIL
        Synchronized Multimedia Integration Language (W3C, WWW)
        
SMIME
        Secure/Multipurpose Internet Mail Extensions (MIME, MS, Lotus, Qualcomm, RSA, cryptography), "S/MIME"
        
SMIS
        Service-Marketing-InformationsSystem (MBAG)
        
SMIT
        System Management Interface Tool (IBM, AIX)
        
SMK
        Software Migration Kit
        
SMK
        Structured Meta-Knowledge
        
SML
        Service Management Layer (TMN)
        
SML
        Shared Memory Link (TCP/IP)
        
SML
        Siemens Modular Link
        
SML
        Standard Machine Language
        
SML
        Standard Meta Language
        
SMLNJ
        Standard Meta Language / New Jersey, "SML/NJ" 
        
SMM
        System Management Mode (CPU)
        
SMM
        System Manager's Manual (BSD, Unix)
        
SMP
        Software Motion Picture (DEC)
        
SMP
        Symmetric MultiProcessor [system] (SMP)
        
SMP
        Symmetrisches MultiProzessor [system]
        
SMP
        System Modification Program
        
SMPC
        Shared Memory Parallel Computer (HPC)
        
SMPTE
        Society of Motion Picture and Television Engineers (org.)
        
SMPU
        Switch Module Processor Unit
        
SMR
        Source Maintainability and Reliability
        
SMR
        Specialized Mobile Radio [systems]
        
SMRT
        Signal Message Rate Timing
        
SMS
        Service Management System
        
SMS
        Short Message Service (GSM, mobile-systems)
        
SMS
        Storage Management Services (Novell, Netware)
        
SMS
        System Management Server (MS)
        
SMS
        System-Managed Storage
        
SMSAC
        Society of Management Science and Applied Cybernetics (org., India)
        
SMSC
        Short Message Service Center (SMS, GSM, mobile-systems)
        
SMSCB
        Short Message Service Cell Broadcast (SMS), "SMS CB"
        
SMSCEMI
        Short Message Service Center External Machine Interface [protocol] (SMS)
        
SMSP
        Storage Management Services Protocol (Novell, SMS)
        
SMT
        Segment Table Map
        
SMT
        Shared Memory Transport (X-Windows)
        
SMT
        Station ManagemenT (FDDI)
        
SMT
        Surface-Mount Technology
        
SMTA
        Subordinate Message Transfer Agent (MTA)
        
SMTP
        Simple Mail Transfer Protocol (RFC 821, TCP/IP)
        
SMUG
        Seldom Met Users Group [book] (HP, HP 3000)
        
SMUX
        SNMP MUltipleXing protocol (SNMP, MUX, RFC 1227)
        
SN
        Sequence Number
        
SN
        Serial Number
        
SN
        Subscriber Number (MS-ISDN, GSM, mobile-systems)
        
SNA
        Systems Network Architecture (IBM)
        
SNAC
        SNA Network Access Controller (SNA, SDLC, IDS)
        
SNAC
        SubNetwork ACcess [functions]
        
SNACP
        [PPP] Systems Network Architecture Control Protocol (PPP, SNA, RFC 2043)
        
SNACP
        SubNetwork ACcess Procedure (ISO, IS 8648, SNAC), "SNAcP"
        
SNADS
        Systems Network Architecture Distribution Service (IBM, CCS)
        
SNAFU
        Situation Normal All Fouled Up (slang)
        
SNAIP
        [advanced] Systems Network Architecture/Internet Protocol (SNA, IP, RFC 1538), "SNA/IP"
        
SNAP
        SubNetwork Access Protocol (LAN, ethernet)
        
SNAP
        SubNetwork Attachment Point (IEEE 802.1a)
        
SNAP
        System and Network Administration Program
        
SNCP
        Single Node Control Point (IBM, SNA)
        
SNDC
        SubNetwork Dependent Convergence [functions] (OSI)
        
SNDCP
        SubNetwork Dependent Convergence Procedure (ISO, IS 8648, OSI, SNDC)
        
SNEPS
        Semantic NEtwork Processing System (GNU, LISP), "SNePS"
        
SNF
        Server Natural Format (Fonts, X)
        
SNF
        Shared Network Facilities
        
SNG
        Satellite News Gathering
        
SNI
        Siemens Nixdorf Informationssysteme [AG] (manufacturer)
        
SNI
        SNA Network Interconnection (IBM, VTAM, SNA)
        
SNI
        Subscriber Network Interface (SMDS)
        
SNIA
        Storage Networking Industry Association (org., NAS, SAN)
        
SNIC
        SubNetwork Independent Convergence [functions] (OSI)
        
SNICP
        SubNetwork Independent Convergence Procedure (ISO, IS 8648, OSI, SNIC)
        
SNL
        Sandia National Laboratories (org., USA)
        
SNMP
        Simple Network Management Protocol (RFC 1157/1902, TCP/IP, IETF)
        
SNNS
        Stuttgart Neural Network Simulator (IPVR, NN)
        
SNOBOL
        StriNg Orientated symBOlic Language
        
SNP
        SubNetwork Protocol
        
SNPA
        Sub-Network Point of Attachment
        
SNPP
        Simple Network Paging Protocol (RFC 1861, SMS)
        
SNR
        Serial NumbeR (IMEI, GSM, mobile-systems)
        
SNR
        Signal-to-Noise Ratio
        
SNRM
        Set Normal Response Mode (SDLC, HDLC, ADDCP, LAPB)
        
SNRME
        Set Normal Response Mode Extension (SNRME)
        
SNS
        Secure Network Server
        
SNTP
        Simple Network Time Protocol (RFC 2030)
        
SOA
        Start Of Authority record (DNS)
        
SOA
        State Of the Art (slang)
        
SOAP
        Simple Object Access Protocol (W3C, XML, HTML)
        
SOAP
        Symbolic Optimizer and Assembly Program
        
SOB
        Start Of Block
        
SOC
        System-On-a-Chip
        
SOC
        Systems and Option Catalog
        
SOCKS
        SOCKet Secure
        
SOCO
        Service Office/Central Office, "SO/CO"
        
SODA
        Simplified OS for Distributed Applications (OS)
        
SODA
        System Optimization and Design Algorithm
        
SODIMM
        Small Outline Dual Inline Memory Module (DRAM, DIMM)
        
SODIS
        SOftware Dokumentations- und InformationsSystem
        
SOE
        Standard Operating Environment
        
SOE
        Standards of Excellence
        
SOEP
        Secondary Operand Execution Pipeline (Motorola, CPU), "sOEP"
        
SOFABED
        [davenport] Standard Open Formal Architecture for Browsable Electronic Documents
        
SOH
        Section OverHead
        
SOH
        Start Of Header
        
SOHO
        Small Office / Home Office [market]
        
SOI
        Silicon-On-Insulator [technology/wafer] (IC, IBM)
        
SOIF
        Summary Object Interchange Format (WWW)
        
SOJ
        Small-Outline J-lead [chip] (IC, DRAM)
        
SOL
        Simulation-Oriented Language
        
SOLSA
        Support of Localized Service Areas (ETSI), "SoLSA"
        
SOM
        Self-Organizing Machine
        
SOM
        Structured Object Method
        
SOM
        System Object Model (IBM, ORB, CORBA)
        
SONDS
        Small Office Network Data System
        
SONET
        Synchronous Optical NETwork (FDDI, ATM)
        
SOP
        Standard Operating Procedure
        
SOS
        Share Operating System (OS)
        
SOS
        Sophisticated Opearting System (OS, Apple)
        
SOS
        Standards and Open Systems
        
SOS
        Support On Site
        
SOS
        Symbolic Operating System (OS)
        
SOSP
        System Operational and Support Plan
        
SOTA
        State of the Art (slang)
        
SOX
        Sound EXchange [software]
        
SP
        Service Pack (MS, Windows NT)
        
SP
        Service Provider (DMI)
        
SP
        Signal Processor
        
SP
        SPare (IMEI, GSM, mobile-systems)
        
SP
        Speculative Precomputation
        
SP
        Speech Processing
        
SP
        Stack Pointer [register] (CPU, Intel, assembler)
        
SP
        Structured Programming
        
SP
        System Product
        
SPA
        Software Publishers Association (org., USA)
        
SPADE
        Statistical Packet Anomaly Detection Engine (Snort, IDS)
        
SPAG
        [european] Standards Promotion and Application Group (org., manufacturer, Europe)
        
SPAM
        Send Phenomenal Amounts of Mail (Usenet, EMP, slang)
        
SPAM
        Spiced Pork and hAM (Usenet, EMP)
        
SPANS
        Simple Protocol for ATM Network Signalling (ForeRunner, ATM)
        
SPAP
        Secure Password Authentication Protocol
        
SPAP
        Shiva Password Authentication Protocol (PAP, 3Com)
        
SPARC
        Scalable Processor ARChitecture (Sun)
        
SPARC
        Standard Planning And Requirement Committee (ANSI, org.)
        
SPAT
        Speech Pronounciation Analysis Training (Uni Mainz), "S.P.A.T."
        
SPC
        SCSI-3 Primary Commands (SAM, SCSI)
        
SPC
        Solution Partner Center (IBM)
        
SPC
        Stored Program Command
        
SPC
        Stored Program Control
        
SPCF
        Service Point Command Facility (IBM)
        
SPCS
        Stored Program Control Systems
        
SPD
        Serial Presence Detect (EEPROM, SDRAM)
        
SPD
        Software Product Description
        
SPD
        Software Products Division
        
SPDEEPROM
        Serial Presence Detect - Electronical Erasable Programmable Read Only MemorySerial Presence Detect (EPROM, IC, ROM), "SPD-EEPROM"
        
SPDIF
        Sony/Philips - Digital Interface Format (audio, Sony, Philips), "S/P-DIF"
        
SPDL
        Standard Page Description Language (ISO, IEC, IS 10180)
        
SPDN
        Shared Private Data Network
        
SPDU
        Session Protocol Data Unit (OSI, PDU, OSI/RM)
        
SPE
        Symbolic Programming Environment
        
SPE
        Synchronous Payload Envelope
        
SPEC
        System Performance Evaluation Corporation (org., RISC)
        
SPF
        Structured Programming Facility
        
SPI
        SCSI-3 Parallel Interface (SAM, SCSI)
        
SPI
        Security Parameter Index
        
SPI
        Serial Peripheral Interface
        
SPI
        Service Provider Interface (WOSA)
        
SPI
        Software Products International (manufacturer)
        
SPICE
        Scalable Parallel Intelligent Communications Engine
        
SPICE
        Simulation Program with Integrated Circuit Emphasis
        
SPICS
        Spare Parts Inventory Control System (MBAG)
        
SPID
        Service Profile IDentifier (ISDN)
        
SPID
        Service Protocol IDentifier
        
SPIN
        Sponsored Programs Information Network
        
SPKM
        Simple Public-Key [GSS-API] Mechanism (GSS, RFC 2025)
        
SPL
        Set Priority Level (Unix)
        
SPL
        Simple Programming Language
        
SPL
        Systems Programming Language (HP, MPE, ALGOL, HP 3000)
        
SPM
        Session Protocol Machine (OSI, ISO 8327)
        
SPM
        Set Program Mask
        
SPM
        Software Performance Monitor
        
SPM
        Source Program Maintenance
        
SPM
        System Performance Monitor
        
SPM2
        System Performance Monitor /2 (IBM, OS/2), "SPM/2"
        
SPN
        Substitution Permutation Network (cryptography)
        
SPOF
        Single Point Of Failure
        
SPOOL
        Simultaneous Peripheral Operations OnLine
        
SPP
        Scalable Parallel Processing (Intel)
        
SPP
        Sequenced Packet Protocol
        
SPP
        Standard Parallel Port
        
SPR
        Software Problem Report
        
SPS
        SpeicherProgrammierbare Steuerungstechnik
        
SPS
        String Processing System
        
SPS
        Symbolic Programming System
        
SPSL
        Special-Purpose Simulation Language
        
SPSS
        Statistical Package of the Social Sciences
        
SPT
        Sectors Per Track
        
SPT
        Shortest Path Tree (PIM, ST, Multicast)
        
SPTS
        Single Program Transport Stream
        
SPU
        System Processing Unit
        
SPUCDL
        Serial Peripheral Unit Controller/Data Link, "SPUC/DL" 
        
SPUD
        Storage Pedestal Upgrade Disk / Drive
        
SPUR
        Supercomputing Program for Undergraduate Research
        
SPX
        Sequenced Packet eXchange (Novell, Netware)
        
SQ
        Shielded Quart [cable]
        
SQ
        Signal Quality (MODEM)
        
SQA
        Software Quality Assurance
        
SQD
        Signal Quality Detector
        
SQFP
        Shrink Quad Flat Package (CPU)
        
SQL
        Structured Query Language (ISO 9075, DB, 4GL)
        
SQLCLI
        SQL Call Level Interface (SAG, SQL), "SQL/CLI"
        
SQLDA
        Structured Query Language Descriptor Area (SQL)
        
SQLDMO
        SQL Distributed Management Objects (MS, SQL Server, OLE, DB)
        
SQLDS
        Structured Query Language/Data System (IBM, VMS), "SQL/DS"
        
SQLJ
        Structured Query Language - Java (SQL, Java, DB, ANSI, NCITS)
        
SQM
        Software Quality Management
        
SR
        Source Routing [bridging]
        
SR
        Status Register (IC, assembler)
        
SRAM
        Static Random Access Memory (RAM, IC, RL)
        
SRAT
        Static Resource Affinity Table (ACPI)
        
SRB
        Stream Request Block
        
SRC
        Semiconductor Research Council (org., USA)
        
SRC
        Standard Context Routing (MODACOM)
        
SRC
        System Resource Controller (AIX, IBM)
        
SRD
        Screen Reader System
        
SRD
        Secondary Received Data
        
SRD
        Send and Request Data (Feldbus)
        
SRDF
        Symmetrix Remote Data Facility
        
SRE
        Self Routing switch Element (ATM)
        
SRF
        Science Research Foundation (org., UK)
        
SRF
        Service Resource Function (IN)
        
SRF
        Specifically Routed Frame
        
SRGB
        Standardized Red Green Blue [colorspace] (RGB, Windows)
        
SRI
        Stanford Research Institute (org., USA)
        
SRM
        System Resources Manager
        
SRN
        Source/Recipient Node (IBM)
        
SRP
        Software Reuse Program
        
SRP
        Source Routing Protocol (IBM)
        
SRPI
        Server Requester Programming Interface (IBM, API)
        
SRPM
        Scalable Reverse Path Multicast (Multicast)
        
SRQ
        Service ReQuest (GPIB)
        
SRS
        Sound Retrieval System (Digital audio)
        
SRT
        Secure Request Technology (banking, cryptography, Java)
        
SRT
        Signal Requests Terminal
        
SRT
        Source Route Transparent [bridges] (ethernet, Token Ring, IEEE 802.1D)
        
SRT
        Speech Reception Threshold
        
SRTS
        Synchronous Residual Time Stamp
        
SRVIFS
        SeRVer Installable File System (IBM)
        
SS
        Single Sided [disk] (FDD)
        
SS
        Spread Spectrum (WLAN)
        
SS
        Stack Segment [register] (CPU, Intel, assembler)
        
SSA
        Serial Storage Architecture (IBM)
        
SSADM
        Structured System Analysis and Design Method (DB)
        
SSAP
        Session Service Access Point (SAP, LLC, OSI/RM)
        
SSAP
        Source link Service Access Point (SAP, LLC)
        
SSAS
        Station Signaling and Announcement System
        
SSB
        Single SideBand
        
SSBA
        Suite Synthetique des Benchmarks de l'AFFU (MP)
        
SSBAM
        Single SideBand Amplitude Modulation
        
SSC
        SCSI Stream Commands (SAM, SCSI)
        
SSC
        Specialized Systems Consultants
        
SSCF
        Service Specific Coordination Function (ATM)
        
SSCOP
        Service Specific Connection Orientated Protocol (ATM)
        
SSCP
        Service Switching & Control Point (IN)
        
SSCP
        System Services Control Point (NAU, SNA, SSCP)
        
SSCPNS
        System Services Control Point Network Services (SSCP)
        
SSCS
        Service Specific Convergence Sublayer (ATM)
        
SSD
        Solid State Disk (HDD, RAM)
        
SSDA
        Synchronous Serial Data Adapter
        
SSDC
        Stack Segment Descriptor Cache [register] (SS, Intel, CPU)
        
SSDD
        Single-Sided/Double-Density [disk] (FDD), "SS/DD"
        
SSDD
        Solid State Disk Drive
        
SSDU
        Session Service Data Unit
        
SSE
        Simple Screen Editor
        
SSE
        Software Support Engineer
        
SSE
        Streaming SIMD Extentions (Intel, Pentium, SIMD)
        
SSF
        Service Switching Function (IN)
        
SSFDC
        Solid State Floppy Disk Card (PCMCIA)
        
SSH
        Secure SHell (Unix, Shell)
        
SSI
        [Schwedisches Strahlenschutzinstitut] (Sweden, org.)
        
SSI
        Server Side Include [script] (HTTPD, CGI)
        
SSI
        Small Scale Integration
        
SSI
        Software Systems Interface
        
SSIA
        Subject Says It All (slang)
        
SSIMM
        Single [RAS] Single Inline Memory Module (IC, RAS), "S-SIMM"
        
SSL
        Secure Socket Layer (Netscape, RSA, WWW, cryptography)
        
SSLTLS
        Secure Socket Layer / Transport Layer Security (RSA, cryptography, TLS), "SSL/TLS"
        
SSM
        Set System Mask
        
SSM
        Simplified Storage Management (HSM)
        
SSM
        Source Specific Multicast (IETF, WG, Multicast)
        
SSP
        Service Switching Point (IN)
        
SSP
        Silicon Switch Processor (Cisco)
        
SSP
        Standard Printer Port
        
SSP
        Structured Support Program
        
SSP
        Switch to Switch Protocol (DLSW, RFC 1795)
        
SSP
        System Stack Pointer
        
SSP
        System Support Program (OS, IBM)
        
SSPI
        Security Support Provider Interface
        
SSR
        Solid-State Relay
        
SSSD
        Single-Sided/Single-Density [disk] (FDD), "SS/SD"
        
SSSNA
        Server to Server Systems Network Architecture (Banyan, VINES), "SS/SNA"
        
SST
        Simple SIPP Transition (Internet, SIPP)
        
SST
        South Sumatra Time [+0700] (TZ)
        
SSTP
        Screened Shielded Twisted Pair [cable] (STP, TP), "S/STP" 
        
ST
        Seagate Technology (HDD)
        
ST
        Segment Table / Type
        
ST
        Shared Tree (PIM, SPT, CBT, Multicast)
        
ST2
        [internet] STream protocol 2 (Internet, ATM, RFC 1819, Multicast)
        
STA
        Spanning Tree Algorithm
        
STACS
        Symposium on Theoretical Aspects of Computer Science (conference)
        
STAIRS
        STorage And Information Retrieval System
        
STAM
        Shared-Time Allocation Manager
        
STAR
        Shareware Trade Association and Resources (org.)
        
STARS
        Software Technology for Adaptable Reliable Systems
        
STB
        Software Technical Bulletin
        
STC
        Science and Technology Center (NSF, USA)
        
STC
        Secure Transaction Channel (banking, V-One, cryptography)
        
STC
        SeT Carry [flag] (assembler)
        
STC
        Standard Transmission Code
        
STC
        Sub-Technical Committee (ETSI)
        
STCIUR
        Sub-Technical Committee International User Requirements (ETSI), "STC IUR"
        
STD
        Secondary Transmitted Data
        
STD
        SeT Direction [flag] (assembler)
        
STD
        State Transition Diagram
        
STD
        Subscriber Trunk Dialing
        
STD
        Suspend To Disk (BIOS, ACPI)
        
STDA
        StreetTalk Directory Assistance (Banyan, VINES)
        
STDIN
        STandarD INput
        
STDM
        Synchronous Time Division Multiplexer
        
STDOUT
        STandarD OUTput
        
STE
        Section Terminating Equipment (SONET)
        
STE
        Secure Terminal Equipment
        
STE
        Spanning Tree Explorer
        
STE
        Standard Terminal Equipment
        
STEP
        STandard for the External representation / Exchange of Product data definition (ISO, DP 10303, CAD)
        
STFT
        Short Time Fourier Transformation
        
STI
        SeT Interrupt [flag] (assembler)
        
STI
        Standard Tape Interface
        
STII
        [internet] STream protocol II (RFC 1819)
        
STING
        Software Technology Interest Group (CERN, org.)
        
STIX
        SmallTalk Interface to X (GNU)
        
STL
        Standard Template Library
        
STLP
        Secure Transport Layer Protocol
        
STM
        Synchronous Transfer Mode (ATM)
        
STM
        System Master Tape
        
STM1
        Synchronous Transport Mode 1 (ATM, STM)
        
STN
        Scientific and Technical Network (network, JICST, FIZ)
        
STNLCD
        SuperTwisted Nematic Liquid Crystal Display (LCD), "STN-LCD" 
        
STOC
        Symposium on Theory Of Computing (conference)
        
STONE
        STructured and OpeN Environment (FZI Karlsruhe, Germany)
        
STORM
        Statistically-Oriented Matrix Program
        
STP
        Selective Tape Print
        
STP
        Service Transaction Program (IBM)
        
STP
        Shielded Twisted Pair [cable] (TP)
        
STP
        Signaling Transfer Point (IN)
        
STP
        Software Technology Park
        
STP
        Software Through Pictures, "StP" 
        
STP
        Spanning Tree Protocol (IEEE 802.1)
        
STP
        System Training Program
        
STR
        Synchronous Transmit Receive
        
STS
        Synchronous Time Stamps
        
STS
        Synchronous Transport Signal
        
STS3C
        Synchronous Transport System - level 3 Concatenated, "STS-3c"
        
STT
        Secure Transaction Technology (MS, banking)
        
STT
        Surface Tunnel Tansistor (IC, DRAM, NEC)
        
STTL
        Standard Transistor-Transistor Logic (TTL)
        
STU
        Secure Telephone Unit
        
STV
        Sprint Telecommunications Venture (org.)
        
STX
        Start of TeXt
        
SU
        Screening Units
        
SU
        Selectable Unit
        
SU
        Signalling Unit
        
SU
        Storage Unit
        
SU
        Switch User (Unix)
        
SUA
        Single User Account [feature] (Internet, NAT)
        
SUDS
        Software Update and Distribution System
        
SUG
        Sun User's Group (org., Sun, user group)
        
SUGA
        Swedish User Group of Amiga (user group, Sweden)
        
SUGD
        Sun User's Group Deutschland (Sun, org., user group)
        
SUMC
        Space Ultrareliable Modular Computer (RCA)
        
SUNET
        Swedish University NETwork
        
SUNOS
        SUN Operating System (Sun, OS, SPARC), "SunOS"
        
SUNVIEW
        SUN's Visual Integrated Environment for Workstations (Sun, GUI)
        
SURANET
        Southeastern Universities Research Association NETwork (network, USA), "SURAnet"
        
SURF
        System Utilization Reporting Facility
        
SUS
        Single Unix Specification (Unix)
        
SUSE
        Software Und SystemEntwicklung [distribution] (Linux), "S.u.S.E."
        
SUSP
        System Use Sharing Protocol
        
SUT
        System Under Test
        
SUTP
        Screened Unshielded Twisted Pair [cable] (UTP, TP), "S/UTP"
        
SUTT
        Single User Test Tools
        
SV
        StandortVerteiler (cable, EN 50 173)
        
SVA
        Shared Virtual Area
        
SVABI
        System V Application Binary Interface (Unix, AT&T, SCD)
        
SVC
        SuperVisor Call (IBM, VM, VM/ESA)
        
SVC
        Switched Virtual Circuit / Channel / Connection (ATM, PVC)
        
SVC
        Switched Vitual Call / Circuit (IBM, X.25)
        
SVCD
        Super Video Compact Disk (CD)
        
SVCI
        Switched Virtual Circuit Identifier (SVC, ATM)
        
SVD
        Schweizerische Vereinigung fuer Datenverarbeitung (org., Switzerland)
        
SVD
        Simultaneous Voice/Data
        
SVD
        Supplementary Volume Descriptor (CD, IS 9660)
        
SVE
        Simple Virtual Environment
        
SVFS
        System V File System (Unix)
        
SVG
        Scalable Vector Graphics [format] (W3C)
        
SVGA
        Super Video Graphics Array (VGA)
        
SVID
        System V Interface Definition (Unix, AT&T, SCD)
        
SVIP
        Secure Voice Improvement Program
        
SVK
        Self Voicing Kit (IBM, Java)
        
SVMT
        System Virtual Memory Table (BS2000)
        
SVP
        SerVice Provider (ETSI, ETSI 201 671), "SvP"
        
SVPC
        Single Variable Per Constraint
        
SVPMI
        Super VGA Protected Mode Interface (VESA)
        
SVR3
        System V Release 3 (Unix, OS, AT&T)
        
SVR4
        System V Release 4 (Unix, OS, AT&T)
        
SVS
        Single Virtual Space (IBM, OS, OS/SVS)
        
SWAN
        Secure WAN ??? (RSA), "S/WAN"
        
SWAN
        Sun Wide Area Network (Sun, WAN)
        
SWAP
        Shared Wireless Application Protocol (HomeRF Association, WAP, WLAN)
        
SWAP
        Simple Workflow Access Protocol
        
SWEDAC
        [Staatliches Amt fuer Technische Akkreditierung] (Sweden, org.)
        
SWI
        SoftWare Interrupts (RISC, OS)
        
SWICO
        Schweizerischer Wirtschaftsverband der Informations-, Communikations- und Organisationstechnik (org., Switzerland)
        
SWIFT
        Society for Worldwide Interbank Financial Telecommunication (org., banking)
        
SWIM
        Super Woz' Integrated Machine
        
SWISH
        Simple Web Indexing System for Humans (WAIS, WWW)
        
SXGA
        Super eXtended Graphics Adapter / Array
        
SYMM
        SYnchronized MultiMedia working group (WAI)
        
SYSAD
        SYStem ADministrator, "SysAd" 
        
SYSEX
        SYStem EXecutive (OS, IBM, S/360)
        
SYSOP
        SYStem OPerator (BBS), "SysOp" 
        

        
        









        

T1
        [digital] Transmission link 1 [1.544 Mbit/s] (DS1)
        
T2
        [digital] Transmission link 2 [6.312 Mbps] (DS2)
        
T3
        [digital] Transmission link 3 [44.736 Mbps] (DS3)
        
T4
        [digital] Transmission link 4 [274.176 Mbps] (DS4)
        
TA
        TerminalAdapter (ISDN)
        
TAAI
        Taiwanese Association for Artificial Intelligence (org., Taiwan, AI)
        
TAC
        Technical Assistance Center (Cisco)
        
TAC
        Terminal Access Circuit
        
TAC
        Terminal Access Controller (ARPANET, MILNET)
        
TAC
        Type Approval Code (IMEI, GSM, mobile-systems)
        
TACACS
        Terminal Access Controller Access Control System (RFC 1492)
        
TACS
        Total Access Communication Service (mobile-systems)
        
TACTIS
        Thai API Consortium / Thai Industrial Standard [codeset] (API, TIS)
        
TADI
        Time Assigned Data Interpolation
        
TADIL
        TActical Digital Information Link (mil.)
        
TADS
        Test and Debug System
        
TAE
        Telekommunikations-AnschlussEinheit (Telekom)
        
TAF
        Terminal Access Facility
        
TAFIM
        Technical Architecture Framework for Information Management (JIEO, mil.)
        
TAG
        Technical Advisory Group (PIMA, I3C)
        
TAIS
        Technisch-Administratives InformationsSystem
        
TAIS
        Toshiba America Information Systems [inc] (manufacturer, USA, Toshiba)
        
TALAE
        TALigent Application Program (Taligent), "TalAE"
        
TALDE
        TALigent Development Environment (Taligent), "TalDE"
        
TALISMAN
        Tracing Authors' rights by Labelling Image Services and Monitoring Access Network [project] (Europe)
        
TALOS
        TALigent Object Services (Taligent), "TalOS"
        
TAN
        Table / Total Area Network
        
TAN
        TransAction Number (banking)
        
TANJ
        There Ain't No Justice (slang, Usenet, IRC)
        
TANSTAAFL
        There Ain't No Such Thing As A Free Lunch (slang, Usenet)
        
TAO
        Track At Once (CD-R)
        
TAP
        Telocator Alphanumeric input Protocol (SNPP, PCIA, SMS, USA)
        
TAP
        Terminal Access Point (cable)
        
TAP
        Test Access Port (IC, IEEE 1149.1)
        
TAP
        The Ada Project
        
TAP
        Transport und Archivierung Produktdefinierender daten (org., DIN, STEP, CIM)
        
TAPI
        Telephony Application Program Interface (Intel, MS, WOSA, CTI)
        
TAR
        Tape ARchiver (Unix)
        
TAS
        Tag Abuse Syndrome (SGML, HTML, slang)
        
TASI
        Time-Assigned Speech Interpolation
        
TASM
        Turbo ASseMbler (Borland, assembler)
        
TAT
        Theoretical Arrival Time (GCRA)
        
TB
        Tabular Bayes' [algorithm]
        
TB
        TeraByte
        
TB
        Transparent Bridging
        
TBC
        Time Base Corrector (video)
        
TBCP
        Tagged Binary Control Protocol (Adobe, PS)
        
TBR
        Technical Basis for Regulations (ISDN)
        
TC
        Task Committee (IFIP)
        
TC
        Technical Committee (ISO)
        
TC
        Terminal Computer
        
TC
        Terminal Controller
        
TC
        Transaction Capabilities
        
TC
        Transfer Control
        
TC
        Transmission Control
        
TC
        Transmission Convergence
        
TCA
        information technology & TeleCommunications Association (org.)
        
TCA
        Taipei Computer Association (org., Taiwan)
        
TCAF
        Thin Client Application Framework (Java, LDAP, IBM)
        
TCAM
        TeleCommunications Access Method (IBM, DFUe)
        
TCAP
        Transaction Capabilities Applications Part (MSC, GSM, IN, mobile-systems)
        
TCB
        Task Control Block (BS2000)
        
TCC
        Telecommunications Center
        
TCF
        Transparent Computing Facility
        
TCFS
        Transparent Cryptographic FileSystem (Linux, cryptography)
        
TCH
        Traffic CHannel (GSM, mobile-systems)
        
TCI
        Test Cell Input (UNI, ATM)
        
TCK
        Test ClocK (TAP, IC)
        
TCL
        Tool Command Language
        
TCLTK
        Tool Command Language/ToolKit (TCL, X-Windows), "TCL/TK"
        
TCM
        Thermal Conduction Module
        
TCM
        Time Compression Multiplexer
        
TCM
        Trellis Coded Modulation
        
TCNS
        Thomas Conrad Network System (LAN)
        
TCO
        Test Cell Output (UNI, ATM)
        
TCO
        Tjaenstemaennens CentralOrganisation (Sweden, org.)
        
TCO
        Total Cost of Ownership
        
TCP
        Tape Carrier Package (CPU)
        
TCP
        Test Coordination Procedure
        
TCP
        Transmission Control Protocol (ARPANET)
        
TCPACO
        TCP Alternate Checksum Option (RFC 1146, TCP), "TCP-ACO"
        
TCPBEUI
        Transmission Control Protocol BIOS Extended User Interface (NETBIOS, TCP, UI)
        
TCPC
        The Clean Personal Computer group (org., manufacturer, Grafikkarten)
        
TCPIP
        Transmission Control Protocol/Internet Protocol (RFC 793, IP), "TCP/IP"
        
TCPLDP
        TCP extensions for Long Delay Paths (RFC 1072, TCP)
        
TCS
        Transmission Convergence Sublayer (ATM)
        
TCSEC
        Trusted Computer System Evaluation Criteria (Orange Book, NCSC)
        
TCSH
        Trustedi C SHell (Unix, Shell)
        
TCU
        Tape Control Unit
        
TCU
        Timing Control Unit
        
TCU
        Transmission Control Unit
        
TD
        Transmit Data (MODEM)
        
TDA
        TestDatenAuswerter (IC)
        
TDB
        Task DataBase
        
TDB
        Track Descriptor Block (UDF, CD-R)
        
TDC
        Tape Data Controller
        
TDC
        Terrestrial Data Circuit
        
TDCC
        Transportation Data Coordinating Committee (org., USA)
        
TDD
        Telecommunications Device for Deaf
        
TDDSG
        TeldeDienstDatenSchutzGesetz DFUe, IUKDG, Germany
        
TDG
        TeleDienstGesetz DFUe, IUKDG, Germany
        
TDI
        Test Data Input (TAP, IC)
        
TDI
        Trusted Database Interpretation (DB)
        
TDJ
        Transfer Delay Jitter
        
TDM
        Telekom Designed Networks (Telekom)
        
TDM
        Time Division Multiplexing
        
TDMA
        Time Division Multiple Access (mobile-systems)
        
TDMS
        Terminal Data Management System
        
TDN
        Telekom Designed Network
        
TDNN
        Time Delay Neural Net (NN)
        
TDO
        Test Data Output (TAP, IC)
        
TDOS
        Tape and Disk Operating System (OS, RCA Spectra 70)
        
TDP
        Telocator Data Protocol (PCIA, SMS, USA)
        
TDP
        Triton Data Path (Intel, Triton, IC)
        
TDR
        Time DOMAIN Reflectometer (cable)
        
TDS
        Tabular Data Strean [protocol] (Sybase)
        
TDSL
        Telekom Digital Subscriber Line (Telekom, Germany), "T-DSL"
        
TDSV
        Telekommunikation-DatenSchutzVerordnung (BMWI)
        
TDU
        Telesoftware Data Unit (BTX)
        
TE
        Terminal Equipment
        
TEA
        Telekommunikations-Anschluss-Einheit (Telekom)
        
TEAMA
        Taiwanese Electric Appliance Manufacturer's Association (org., Taiwan)
        
TEC
        Text Encoding Converter (Apple)
        
TECO
        Tape / Text Editor and COrrector (MIT)
        
TEDAX
        TExt DAta eXchange [protocol] (MacOS)
        
TEDIS
        Trade Electronic Data Interchange Systems (EDI, Europe)
        
TEI
        Text Encoding Initiative [application] (SGML)
        
TELAS
        TELephony Application System (CTI, SNI)
        
TELEVAS
        Telephony Value Added Services (WAP), "TeleVAS"
        
TELIS
        TEileLogistik-InformationsSystem (MBAG)
        
TELNET
        TELephone NETwork (Unix, Internet, RFC 854)
        
TELNETD
        TELephone NETwork DAEMON (Unix, TELNET, DAEMON)
        
TEN
        TransEuropean Networks (network)
        
TERENA
        Trans-European Research and Education Networking Association (org., Netherlands, Europe)
        
TERMCAP
        TERMinal CAPability (Unix)
        
TERMINFO
        TERMinal INFOrmation (Unix)
        
TES
        Technology Enabled Marketing
        
TESS
        The Exponential Security System (RFC 1824)
        
TEXEL
        TEXture ELement
        
TF
        Trace Flag (assembler)
        
TFCC
        Task Force on Cluster Computing (IEEE, Org)
        
TFE
        Thin Film Electronics (manufacturer, Norway, Sweden)
        
TFI
        Terminal Facility Identifier (T-Online)
        
TFLOPS
        Tera FLoating-point Operations Per Second (CPU)
        
TFM
        Trusted Facility Manual
        
TFP
        Tops Filing Protocol
        
TFS
        Translucent File System
        
TFT
        Task File Table (BS2000)
        
TFT
        Thin Film Transistor (LCD)
        
TFTP
        Trivial File Transfer Protocol (UDP, RFC 1350/1782/1783/1784/1785)
        
TFTR
        Trivial File Transfer Protocol
        
TGC
        Terminal Group Controller
        
THAMA
        Trident Hardware-Assisted MPEG-2/AC-3 (Trident, MPEG, DVD, AC-3)
        
THD
        Total Harmonic Distortion (audio)
        
THDN
        Total Harmonic Distortion plus Noise (audio), "THD+N"
        
THE
        Technische Hoogeschool Eindhoven (OS), "T.H.E."
        
THE
        The Hessling Editor
        
THENET
        Texas Higher Education NETwork (network, USA), "THEnet"
        
THT
        Token Holding Timer (FDDI, Token Ring)
        
TI
        Technical Interchange (conference, IBM)
        
TI
        Texas Instruments (manufacturer)
        
TIA
        Telecommunications Industries Associations (org.)
        
TIA
        Thanks In Advance (slang, Usenet, IRC)
        
TIA
        The Internet Adapter [software]
        
TID
        Technical Information Document (Novell)
        
TID
        Touch Interactive Display
        
TIDL
        Tool Integration Description Language (JCF)
        
TIE
        Terminal Interface Equipment
        
TIES
        Time Independent Escape Sequence (MODEM)
        
TIFF
        Tag / Tagged Image File Format (Aldus)
        
TIGA
        Texas Instruments Graphics Adapter (Texas Instruments)
        
TIIAP
        Telecommunications and Information Infrastructure Assistance Program (USA)
        
TIL
        Tech Info Library (Apple, WWW)
        
TIM
        Token Interface Module (Token Ring)
        
TINA
        Telecommunication Information Network Agent (IN)
        
TINA
        Telecommunication Information Networking Architecture (IN)
        
TINAC
        TINA Consortium (org., IN, TINA), "TINA-C"
        
TINC
        There Is No Cabal! (slang, Usenet, Linux, Debian)
        
TINYTP
        Tiny Transport Protocol (IRDA)
        
TIP
        Terminal Interface Processor (ARPANET)
        
TIP
        Transputer Image Processing
        
TIPC
        Texas Instruments Personal Computer (TI)
        
TIPHON
        Telecommunications and Internet Protocol Harmonization Over Networks (ETSI, WG)
        
TIPS
        Truevision Image Paint Software (TI)
        
TIS
        Thai Industrial Standard
        
TIS
        Tools Interface Standard (SCO, Unix)
        
TISN
        Tokyo International Science Network (network)
        
TITN
        ??? (manufacturer, France)
        
TK
        TeleKommunikation
        
TKO
        TeleKommunikationsOrdnung
        
TKV
        TeleKommunikationsVerordnung
        
TL
        Transform and Lighting (3D), "T&L"
        
TLA
        Three Letter Acronym (slang)
        
TLAP
        Token ring Link Access Protocol (LAP)
        
TLB
        Translation Lookaside Buffer (CPU)
        
TLD
        Top Level DOMAIN (Internet, ICANN)
        
TLI
        Transport Layer Interface
        
TLI
        Transport Level Interface (AT&T)
        
TLN
        Trunk Line Network
        
TLP
        Transmission Level Point
        
TLS
        Thread Local Storage
        
TLS
        Transport Layer Security [protocol] (SSL)
        
TLSP
        Transport Layer Security Protocol (ISO)
        
TLV
        Type - Length - Value
        
TLVTTL
        Terminated Low Voltage Transistor Transistor Logic
        
TM
        TeleMail (BBS, Berlin, Germany, DFUe)
        
TM
        Terminal Manager (Bull, DSA)
        
TM
        Tools for MIME (EMACS, GNU, MIME)
        
TM
        TradeMark
        
TM
        Traffic Management
        
TM
        Transaction Monitor (TP)
        
TM
        Turing Machine
        
TMA
        Thinfilm Micromirror Array
        
TMC
        Taiwan Mycomp Corporation (manufacturer)
        
TMC
        Thinking Machines Corporation (manufacturer)
        
TMC
        Traffic Message Channel
        
TMCC
        Time-Multiplexed Communication Channel
        
TMDB
        Tivoli Management Data Base (Tivoli, DB)
        
TMDS
        Transition Minimized Differential Signaling (VESA, LCD)
        
TMDS
        Transmission Minimized Digital Signal
        
TME
        Telocator Message Entry [protocol] (SNPP)
        
TME
        Tivoli Management Environment (Tivoli)
        
TMF
        Tivoli Management Framework (Tivoli)
        
TMF
        Transaction Monitoring Facility (DB, Tandem)
        
TMG
        TestMusterGenerator (IC)
        
TMG
        The Master Genealogist
        
TMN
        Telecommunication Management Network (IN)
        
TMP
        Test Management Protocol
        
TMPDU
        Test Management Protocol Data Unit (ISO 9646-1, PDU), "TM-PDU"
        
TMR
        Transient Memory Record
        
TMR
        Triple Modular Redundancy
        
TMS
        Telecommunications / Telephone Management System
        
TMS
        Test Mode Select (TAP, IC)
        
TMS
        Time Multiplexed Switch
        
TMS
        Truth Maintenance System (AI)
        
TMSC
        Tape Mass Storage Control (DEC)
        
TMSCP
        Tape Mass Storage Control Protocol
        
TMSI
        Temporary Mobile Subscriber Identity (MM, GSM, mobile-systems)
        
TMTOWTDI
        There's More Than One Way To Do It.  (tim-toh'-dee) (Motto of the Perl Project)
        
TMU
        Time Measurement Unit
        
TMUX
        Transport MUltipleXing protocol (RFC 1692), "TMux"
        
TN
        Terminal Node
        
TNC
        Terminal Node Controller
        
TNC
        Threaded Neill Concelman [connector]
        
TNEF
        Transportation Neutral Encapsulation Format (MAPI, MIME, MS)
        
TNFS
        Trusted Network File System (NFS)
        
TNL
        Technical NewsLetter (IBM)
        
TNLCD
        Twisted Nematic Liquid Crystal Display (LCD), "TN-LCD" 
        
TNPC
        Taiwanese New Pc Consortium (org., Taiwan)
        
TNS
        Transit Network Selection
        
TNTC
        Too Numerous To Count (slang, Usenet, IRC)
        
TNVIP
        TelNet Visual Information Projection [protocol] (TELNET, VIP, RFC 1921)
        
TOB
        T-Online Billing (T-Online)
        
TOC
        Table Of Contents (CD)
        
TODS
        Transactions on Database Systems (ACM, DB)
        
TOEM
        Technical Original Equipment Manufacturer
        
TOFU
        Text Oben, Full-quote Unten (slang, Usenet)
        
TOKREUI
        TOKen-Ring Extended User Interface (IBM, Token Ring)
        
TOMS
        Transactions on Mathematical Software (ACM)
        
TOOIS
        Transactions on Office Information Systems (ACM)
        
TOOL
        [conference on] Technology of Object-Orientated Languages and Systems (OOP, conference)
        
TOP
        Technical and Office Protocols
        
TOP
        The OS-9 Project (OS-9)
        
TOPICS
        Total On-Line Program and Information Control System
        
TOPLAS
        Transactions on Programming Languages and Systems (ACM)
        
TOPS
        Timesharing / Total OPerating System (DEC, OS)
        
TOS
        Tape Operating System (OS, RCA Spectra 70)
        
TOS
        Teletype Operating System (OS, Microdata)
        
TOS
        The Operating System (Atari, OS)
        
TOS
        Tramiel Operating System (Atari, OS)
        
TOS
        Type Of Service (IP)
        
TOS360
        Tape ??? Operating System /360 (IBM, S/360, OS), "TOS/360"
        
TOT
        Totally Off-Topic (slang, Usenet, IRC)
        
TP
        Transaction Processing
        
TP
        Turbo Pascal (Borland)
        
TP
        Twisted Pair [cable] (LAN)
        
TP0
        Transport Protocol class 0 (OSI)
        
TP4
        Transport Protocol class 4 (OSI)
        
TPA
        Third Party Applications
        
TPA
        Transient Program Area (DOS)
        
TPC
        Transaction Processing Council (org., manufacturer, DB)
        
TPCC
        Third Party Call Control
        
TPD
        Technical Product Documentation
        
TPDDI
        Twisted Pair Distributed Data Interface (FDDI, STP, Chipcom)
        
TPDU
        Transport Protocol Data Unit (OSI, OSI/RM, PDU, ICC)
        
TPE
        Twisted Pair Ethernet (ethernet)
        
TPF
        Transaction Processing Facility (IBM, MVS/XA)
        
TPI
        Tracks Per Inch (HDD)
        
TPM
        Transactions-Per-Minute
        
TPMS
        Transaction Processing Management System
        
TPPMD
        Twisted Pair Physical layer Medium Dependent (FDDI), "TP-PMD" 
        
TPQ
        True Phone Quality (CAT)
        
TPRM
        ??? (Sun)
        
TPS
        TeleProcessing Systeme [gmbh] (provider)
        
TPS
        Transaction Processing System
        
TPS
        Transactions Per Second (DB, DBMS)
        
TPT
        Twisted Pair Transceiver
        
TPU
        Turbo Pascal Unit (TP, Borland)
        
TPW
        Turbo Pascal for Windows (Borland)
        
TR
        Task Register (CPU, Intel, assembler, IC)
        
TRAP
        Tandem Recursive Algorithm Process
        
TREC
        Texture and Rendering Engine Compression (???)
        
TRIB
        Transfer Rate of Information Bits
        
TRIF
        Tiled Raster Interchange Format
        
TRIPS
        Trade Related aspects of Intellectual Property rightS (GATT)
        
TRIZ
        Teorija Reschenija Isobretatelskich Zadatsch
        
TRM
        Technical Reference Model
        
TRMM
        Token Ring Management Module (Token Ring)
        
TROFF
        Typesetter New Run-OFF (Unix)
        
TROLI
        Token Ring Optimized Link Interface (Token Ring)
        
TRON
        The Realtime Operating system Nucleus
        
TRP
        Token Ring serial Port
        
TRR
        Token Ring Repeater
        
TRT
        Token Rotation Timer (FDDI, Token Ring)
        
TS
        Time Slot
        
TS
        Time Stamp
        
TS
        Traffic Shaping
        
TS
        Transport Stream
        
TS
        TriState (IC)
        
TSA
        Target Service Agent (Novell, Netware, SMS)
        
TSA
        Telecommunication Society of Australia (org., Australia)
        
TSANET
        Technical Support Alliance NETwork (org., manufacturer, Lotus, Oracle, HP, ...), "TSANet"
        
TSAP
        Transport Service Access Point (OSI, OSI/RM, SAP)
        
TSAPI
        Telephony Server Application Programmer Interface (AT&T, Novell, API)
        
TSC
        Triton System Controller (Intel, Triton, IC)
        
TSD
        ??? (color system)
        
TSDU
        Transport Service Data Unit (OSI, OSI/RM)
        
TSE
        [Windows] Terminal Server Edition] (Windows, MS)
        
TSE
        Technical Support Engineer (Sun)
        
TSE
        TestSteuerEinheit (IC)
        
TSEE
        Technical System Engineering Environment (Westmount, CASE)
        
TSI
        Time Slot Interchanger
        
TSIG
        Trusted Systems Interoperability Group (org.)
        
TSM
        Text Service Manager (Apple)
        
TSM
        Time Sharing Monitor (OS, IBM)
        
TSM
        Topology Specific Module (ODI)
        
TSMC
        Taiwan Semiconductor Manufacturing Company (manufacturer, Taiwan)
        
TSMP
        True Symmetric MultiProcessor
        
TSN
        Task Sequence Number (BS2000)
        
TSO
        Telecommunications Service Order
        
TSO
        Time Sharing Option
        
TSOCMS
        Time Sharing Option/Conversational Monitor System (IBM, VME), "TSO/CMS"
        
TSOE
        Time Sharing Option/ ??? (IBM), "TSO/E"
        
TSOP
        Thin Small Outline Package (DRAM, IC)
        
TSP
        Texture and Shading Processor (IC, Graphik)
        
TSP
        Time Synchronization Protocol
        
TSP
        Travelling Salesman Problem
        
TSP1
        Test Synchronization Protocol 1+ (TTCN, ETSI), "TSP1+"
        
TSPI
        TAPI Service Provider Interface (TAPI)
        
TSR
        Terminate and Stay Resident
        
TSS
        Task State Segment (Intel)
        
TSS
        Time-Sharing System
        
TSSDC
        Task State Segment Descriptor Cache (CPU)
        
TSTN
        Triple SuperTwisted Nematic (LCD)
        
TSTS
        Transaction and Switching and Transport Services (BELLCORE)
        
TSW
        TeleSoftWare (T-Online)
        
TSX
        TimeSharing eXecutive (OS, IBM, IBM 1800)
        
TTCN
        the Tree and Tabular Combined Notation (OSI, IUT)
        
TTF
        TrueType Font
        
TTFN
        Ta-Ta For Now (slang, Usenet, IRC)
        
TTL
        TietoTekniikan Liitto [ry] (org., Finland)
        
TTL
        Time To Live (IP)
        
TTL
        Transistor Transistor Logic
        
TTML
        Tagged-Text Markup Language (Nokia, mobile-systems)
        
TTP
        Tiny Transmission Protocol (IRDA, IRLMP)
        
TTP
        Trusted Third Parties (cryptography)
        
TTRP
        Time Token Rotation Protocol (FDDI)
        
TTRT
        Target Token Rotation Time (FDDI)
        
TTS
        Text To Speech [system]
        
TTS
        Transaction Tracking System (DB, Netware)
        
TTS
        Trouble Ticketing System
        
TTY
        TeleTYpe
        
TUB
        Technische Universitaet Berlin (org.)
        
TUBA
        TCP and UDP with Bigger Addresses (TCP, UDP, RFC 1347)
        
TUC
        Total User Cell count (UNI)
        
TUCD
        Total User Cell Difference (UNI)
        
TUG
        TeX User's Group (org., user group, TeX)
        
TUI
        Text-Based User Interface (UI)
        
TUM
        Technische Universitaet Muenchen (org.)
        
TUNIS
        Toronto UNIversity System (OS)
        
TUP
        Telephone User Path (ISDN)
        
TUT
        Transistor Under Test
        
TVOL
        TV OnLine cable service (WorldGate, Internet)
        
TVOS
        Terminal Velocity Operating System (3drealms)
        
TVS
        Transparent Voice Signalling (VOFR)
        
TVST
        TeilnehmerVermittlungsSTelle (Telekom), "TVSt"
        
TWAIN
        Technology Without An Important Name
        
TWB
        Terrestrial Wide-Band [networking]
        
TWINKLE
        The Weizman INstitute Key Locating Engine (cryptography)
        
TWIP
        [one] TWentIeth of a Point [1 inch = 72 points] (DTP)
        
TWOS
        Time Warp Operating System (OS, Hypercube)
        
TXTRR
        TXT Resource Record (DNS, RFC 1035), "TXT-RR"
        
TZ
        Time Zone (Internet, TZ)
        

        
        









        

UA
        Unnumbered Acknowledgement
        
UA
        User Agent (MHS, OSI)
        
UAA
        UnternehmensAnwendungsArchitektur (IM)
        
UAAG
        User Agent Accessibility Guidelines (WAI)
        
UAB
        Unix Appletalk Bridge (Apple, AppleTalk, Unix)
        
UAC
        Universal Access Control (IBM)
        
UADPS
        Uniform Automatic Data Processing System
        
UADSL
        Universal Asymmetric Digital Subscriber Line (DSL, ADSL)
        
UAE
        Unknown / Unrecoverable Application Error (Windows)
        
UAF
        User Authorization File
        
UAPDU
        User Agent Protocol Data Unit (PDU)
        
UART
        Universal Asynchronous Receive and Transmit
        
UAS
        UnAvailable Seconds (DS1/E1, DS3/E3)
        
UAWG
        Universal ADSL Working Group (Org, ADSL, DSL)
        
UBA
        UniBus Adapter (DEC)
        
UBE
        Unsolicited Bulk Email (spam, Internet, UCE)
        
UBNI
        Ungermann-Bass Network Interface
        
UBR
        Unspecified Bit Rate (ATM, CBR, VBR, ABR, QOS)
        
UC
        Universal Code (Internet, DOMAIN)
        
UCC
        Uniform Commercial Code
        
UCE
        Unsolicited Commercial E-mail (Usenet, spam, UBE)
        
UCI
        User-Computer Interface
        
UCLA
        University of California at Los Angeles (org., USA)
        
UCLAVM
        UCLA Virtual Machine (OS, UCLA, VM), "UCLA VM"
        
UCP
        Universal Computer Protocol (SMS, Europe)
        
UCR
        Under Color Removal (DTP)
        
UCS
        Universal [multiple-octet] coded Character Set (ISO, IEC, DIS 10646, Unicode)
        
UCS
        Universal Classification System
        
UCSB
        University of California at Santa Barbara (org. USA)
        
UCSD
        University California San Diego (org., USA)
        
UDB
        Universal DataBase [server] (IBM, DB)
        
UDC
        Universal Decimal Classification
        
UDDI
        Universal Description, Discovery and Integration of business for the web (org., WWW)
        
UDF
        Universal Disc Format (CD, OSTA)
        
UDF
        User Defined Function
        
UDK
        UmweltDatenKatalog (NUIS-SH)
        
UDLI
        ??? [hardware description language] (HDL), "UDL/I"
        
UDMA
        Ultra Direct Memory Access (DMA, ATA)
        
UDO
        User Defined Objects
        
UDP
        Usenet Death Penalty (Usenet, spam)
        
UDP
        User Datagram Protocol (Internet, RFC 768)
        
UDPIP
        User Datagram Protocol / Internet Protocol, "UDP/IP" 
        
UDRP
        Uniform [DOMAIN name] Dispute Resolution Policy (ICANN)
        
UDSL
        Universal Digital Subscriber Line
        
UDT
        User-defined DataType (DB)
        
UDVM
        Universal Data Voice Multiplexer
        
UEIDE
        Ultra Enhanced Integrated Drive Electronics (IDE, HDD)
        
UEV
        User End of Volume
        
UFS
        Universal File System
        
UFS
        Unix File System (Unix)
        
UFST
        Universal Font Scaling Technology (Agfa)
        
UHA
        Ultra High Aperture [ratio] (LCD, TNLCD)
        
UHC
        United Hitech Corporation (manufacturer, Taiwan)
        
UHCI
        Universal Host Controller Interface (USB, Intel, VIA, OHCI)
        
UHF
        Ultra High Frequency
        
UHL
        User Head Label
        
UI
        Unix International (manufacturer, Unix)
        
UI
        User Interface
        
UIC
        User Identification Code
        
UID
        Unit IDentifier (cryptography, EES)
        
UID
        User IDentification
        
UIDL
        Unique ID Listing (POP3, RFC 1939)
        
UIL
        User Interface Language
        
UIMS
        User Interface Management System
        
UIN
        Universal Identification Number (ICQ)
        
UIS
        UmweltInformationsSystem
        
UISRM
        User Interface System Reference Model
        
UKERNA
        United Kingdom Education and Research Networking Association (org., UK)
        
UKOLN
        United Kingdom Office for Library and information Networking (org.)
        
ULA
        Uncommitted Logic Array
        
ULANA
        Unified Local Area Network Architecture
        
ULCC
        University of London Computer Center (org., UK)
        
ULP
        Upper Layer Protocols (FC)
        
ULS
        User Location Interface
        
ULSI
        Ultra Large Scale Integration
        
ULV
        Ultra Low Voltage
        
UMA
        Unified Memory Architecture
        
UMA
        Universal Measurement Architecture (Unix, X/Open)
        
UMA
        Upper Memory Area (Intel)
        
UMADS
        Universal Measurement Architecture Data Storage (UMA)
        
UMB
        Upper Memory Block (Intel, UMA)
        
UMC
        United Microelectronics Corporation (manufacturer)
        
UME
        UNI Management Entity (UNI, ILMI)
        
UML
        Unified Method Language (CASE)
        
UML
        Unified Modelling Language (OOP)
        
UMS
        Unified Messaging System
        
UMTS
        Universal Mobile Telecommunications System (IN, mobile-systems)
        
UNA
        Universal Network Architecture
        
UNARP
        UNsolicited Address Resolution Protocol (ARP, RFC 1868)
        
UNC
        Universal Naming Convention (IBM, MS, Novell, LAN)
        
UNCID
        UNiform rules of Conduct for Interchange of Trade data by teletransmission (EDIFACT)
        
UNCLE
        Unix Net for Computer security in Law Enforcement (org., USA, Unix), "U.N.C.L.E."
        
UNEDIFACT
        United Nations EDIFACT (ISO 9735, EDIFACT), "UN/EDIFACT"
        
UNGTDI
        United Nations Guidelines for Trade Data Interchange (UN/EDIFACT, predecessor), "UN/GTDI"
        
UNI
        Universal Network Interface (Cogent)
        
UNI
        User Network Interface
        
UNITE
        Ubiquitous aNd Integrated Teamwork Environment (SIT)
        
UNIVAC
        UNIVersal Automatic Computer
        
UNMA
        Unified Network Management Architecture
        
UNSM
        United Nations Standard Message, (UN/EDIFACT)
        
UNTDED
        United Nations Trade Data Elements Directory (EDIFACT)
        
UNTDID
        United Nations Trade Data Interchange Directory (EDIFACT)
        
UP
        Uni Processor [system]
        
UPA
        Ultra Port Architecture (Sun, SMP)
        
UPAM
        User Primary Access Method (BS2000)
        
UPC
        Universal Product Code (EAN)
        
UPC
        Usage Parameter Control (UNI, ATM)
        
UPD
        UserParameterDaten (DDBAC)
        
UPL
        User Program Language
        
UPM
        Umdrehungen Pro Minute (HDD)
        
UPM
        User Profile Management (IBM)
        
UPN
        Umgekehrte Polnische Notation
        
UPNP
        Universal Plug 'N Play (PNP), "UPnP"
        
UPP
        Universal Procedure Pointer (AE, Apple)
        
UPPS
        Universal Portable Protocol Stack / Support (Schneider & Koch)
        
UPS
        Uninterruptible Power Supply
        
UPS
        Unix Print Services (Unix)
        
UPT
        Universal Personal Telecommunications (IN)
        
UPT
        Universelle Personengebundene Telekommunikation (IN)
        
URA
        Uniform Resource Agent (WWW)
        
URB
        USB Request Block (USB)
        
URC
        Uniform Resource Citation (WWW)
        
URC
        Uniform Resources Characteristics (URI, WWW)
        
URI
        Universal Resource Identifier (WWW, RFC 1630)
        
URL
        Uniform Resource Locator (WWW, RFC 1738)
        
URN
        Uniform Resource Name (WWW, RFC 1737)
        
URSN
        Unique Resource Serial Number (URI, WWW)
        
US
        Unit Separator (BTX, VPCE)
        
USA
        United Software Association (org., USA)
        
USACNII
        US Advisory Council on the National Information Infrastructure (org., USA)
        
USART
        Universal Synchronous Asynchronous Receiver / Transmitter (IC)
        
USB
        Universal Serial Bus (Intel, USB)
        
USBDDK
        Universal Serial Bus Driver Development Kit (USB, DDK), "USB-DDK"
        
USCP
        Unicos Station Call Processor [protocol] (Cray, MPP)
        
USD
        User's Supplementary Documents (BSD, Unix)
        
USDC
        Universal Switched Data Capability [consortium] (LCD, org.)
        
USDN
        United States Digital Network
        
USEC
        User-based SECurity [model] (SNMP)
        
USENET
        USErs' NETwork (Internet)
        
USF
        Uplink State Flag (GPRS, mobile-systems)
        
USG
        Unix Support Group (org., Unix)
        
USITA
        United States Independent Telephone Association (org., USA)
        
USL
        Unix Systems Laboratories (AT&T, Unix)
        
USMTF
        United States Message Text Format (USA)
        
USN
        Update Sequence Number
        
USP
        User Stack Pointer
        
USR
        U.S. Robotics (manufacturer)
        
USR
        User Service Routines
        
USRT
        Universal Synchronous Receiver/Transmitter (IC)
        
USSD
        UnStructured Supplementary Services (GSM, mobile-systems)
        
USTA
        United States Telephone Association (org., USA)
        
USV
        Unterbrechungsfreie Strom-Versorgung
        
USWC
        Uncached Speculative Write Combining (CPU)
        
UT
        Universal Time [+0000] (TZ, GMT)
        
UT
        Upper Tester
        
UTC
        Universal Time Coordinated (DCE)
        
UTC
        Universal Time Coordinates [+0000] (TZ, GMT)
        
UTF
        UCS Transformation Format (Unicode, UCS)
        
UTI
        Universal Text Interchange
        
UTL
        User Trailer Label
        
UTLB
        Unified Translation Look-aside Buffer (CPU)
        
UTM
        Universal Transaction Monitor
        
UTM
        Universeller TransaktionsMonitor (BS2000, Sinix, TP)
        
UTMS
        Universal Mobile Telecommunications System
        
UTOPIA
        Universal Test & Operations Physical layer Interface for ATM (PL, ATM)
        
UTP
        Unshielded Twisted Pair [cable] (TP)
        
UTRAN
        UMTS Terrestrial Radio Access Network (UMTS, mobile-systems)
        
UTS
        Universal Timesharing System
        
UTSL
        Use The Source, Luke (DFUe, Usenet, IRC)
        
UTTC
        Universal Tape-To-Tape Converter
        
UUCICO
        Unix to Unix Copy Incoming Copy Outgoing (Unix)
        
UUCP
        Unix to Unix Copy Protocol (Unix)
        
UUG
        Unix User Group (org., Unix, user group)
        
UUID
        Universal Unique IDentifier
        
UUNET
        Unix to Unix NETwork (org., ISP)
        
UUT
        Unit-Under-Test
        
UVL
        User Volume Label
        
UW
        Ultra Wide [SCSI] (SCSI)
        
UXGA
        Ultra eXtended Graphics Adapter
        

        
        









        

VA
        Virtual Acoustic
        
VAC
        Visual Age C++ (IBM)
        
VACS
        Visual Access Control System (SNI, CCD)
        
VAD
        Value Added Driver
        
VAD
        Voice Activity Detection (GSM, mobile-systems)
        
VADD
        Value Added Disk Driver
        
VADD
        VisualAge Developper Domain (IBM)
        
VAFC
        VESA Advanced Feature Connector (VESA)
        
VAG
        VRML Architecture Group (org., VRML)
        
VAGI
        VESA Advanced Graphic Interface (VESA)
        
VAIO
        Video Audio Integrated Operation (Sony)
        
VAM
        Verband der Anbieter von Mobilfunkdiensten (org.)
        
VAMAS
        Versailles project on Advanced Materials And Standards (ISO)
        
VAN
        Value Added Network
        
VANS
        Value Added Network Services
        
VAP
        Value Added Process (Netware, NLM, predecessor)
        
VAPI
        Virtual [ISDN] Application Programming Interface (ISDN, CAPI, API)
        
VAPI
        Voyetra Applications Program Interface (API)
        
VAR
        Value-Added Reseller
        
VAROS
        VAriable Refraction Optical System (Canon)
        
VAS
        Value Added Services
        
VASCAR
        Visual Average Speed Computer And Recorder
        
VAST
        Virtual Archive Storage Technology
        
VAT
        [UDF] Virtual Allocation Table (UDF, CD-R)
        
VATM
        Verband der Anbieter von Telekommunikations- und Mehrwertdiensten Org., DFUe, Germany
        
VAX
        Virtual Address eXtension (DEC, VAX)
        
VAXELN
        Virtual Address eXtension ??? (OS)
        
VB
        Visual BASIC (MS, BASIC, VB)
        
VBA
        Visual BASIC for Applications (MS, BASIC, VB)
        
VBE
        VGA standard BIOS Extensions (VESA, VGA, BIOS)
        
VBE
        Visual BASIC Editor (MS, VB)
        
VBIDE
        Visual BASIC Integrated Development Environment (MS, VB)
        
VBN
        Vermittelndes Breitband-Netz
        
VBNS
        Very highspeed Backbone Network Service (NSF, ATM), "vBNS"
        
VBR
        Variable Bit Rate (ATM, CBR, ABR, UBR, QOS)
        
VBRNRT
        Variable Bit Rate - Non Real Time (VBR, ATM), "VBR-NRT"
        
VBRRT
        Variable Bit Rate - Real Time (VBR, ATM), "VBR-RT"
        
VBS
        Visual Basic Script (MS, BASIC, VB)
        
VBX
        Visual Basic eXtensions (MS)
        
VC
        Virtual Channel / Circuit (ATM)
        
VC
        Virtual Console
        
VCA
        Voltage Controlled Amplifier (audio)
        
VCC
        Virtual Channel Connection (ATM)
        
VCD
        Video Compact Disk (CD)
        
VCF
        Voltage Controlled Filters
        
VCI
        Video Cursor Interface (VESA)
        
VCI
        Virtual Channel Identifier (ATM)
        
VCI
        Virtual Channel Identifier (ATM)
        
VCI
        Virtual Connection Identifier (ATM)
        
VCL
        Virtual Channel Link (UNI, ATM)
        
VCL
        Visual Class Library (StarOffice)
        
VCL
        Visual Component Library (Borland, Delphi)
        
VCM
        Windows Conflict Manager (MS, Windows)
        
VCO
        Voltage Controlled Oscillator
        
VCOS
        Visible Caching Operating System (DSP)
        
VCP
        Vector Control Processor
        
VCPI
        Virtual Control Program Interface (DOS, Intel)
        
VCQ
        Vibrant Colour Quality (Matrox)
        
VCS
        Virtual Circuit System
        
VCSDRAM
        Virtual Channel - Synchronous Dynamic Random Access Memory (RAM, DRAM, IC, NEC), "VC-SDRAM"
        
VCSEL
        Vertical-Cavity Surface Emitting LASER
        
VDAFS
        Verband Deutscher Automobilhersteller FlaechenSchnittstelle (DIN, CIM)
        
VDASEDAS
        Verband Deutscher Automobilhersteller / Standardisiertes Einheitliches DatenAustauschSystem (EDI), "VDA/SEDAS"
        
VDD
        Virtual Display Driver
        
VDE
        Verband Deutscher Elektrotechniker [e.v.] (org.)
        
VDI
        Verein Deutscher Ingenieure (org.)
        
VDI
        Video Device Interface (Intel)
        
VDI
        Virtual Device Interface
        
VDIF
        VESA Display Information File (VESA)
        
VDM
        Virtual DOS Machine (OS/2, Windows NT, DOS)
        
VDMA
        Virtual Direct Memory Access (DMA)
        
VDMAD
        Virtual Direct Memory Access Device (VDMA, DMA)
        
VDS
        Virtual DMA Services (DMA)
        
VDSL
        Very high data / bit rate Digital Subscriber Line (DSL)
        
VDT
        Video Display Terminal
        
VDU
        Visual Display Unit
        
VDV
        Vorbestellte DauerwaehlVerbindung (Telekom)
        
VE
        Virtual Environment (VR)
        
VEC
        Virtual Embedded Circuitry (IC)
        
VEG
        Very Evil Grin (slang, Usenet, IRC)
        
VERA
        Just playing around, huh?
        
VERNET
        Virginia Educational Research NETwork (network, USA), "VERnet"
        
VERONICA
        Very Easy Rodent-Orientated Netwide Index of Computerized Archives (Internet)
        
VERP
        Variable Envelope Return Path (SMTP)
        
VESA
        Video Electronics Standards Association (org.)
        
VEST
        VAX Environment Software Translator (VAX, DEC)
        
VF
        Vacuum Flourescent [technology]
        
VFAT
        Virtual File Allocation Table (MS, Windows 95)
        
VFC
        V. Fast Class (MODEM), "V.FC"
        
VFEA
        VMEbus Futurebus+ Extended Architecture
        
VFIR
        Very Fast IRDA (IRDA)
        
VFS
        Virtual File System [layer] (Unix, Linux, OSF/1)
        
VFW
        Video fuer Windows (MS), "VfW"
        
VG
        Volume Group (LVM)
        
VGA
        Video Graphics Array (IBM)
        
VGB
        Virtual GameBoy
        
VGDA
        Volume Group Descriptor Area (AIX, LVM, IBM)
        
VGF
        100VoiceGrade anylan Forum (manufacturer)
        
VGI
        Virtual Graphics Interface
        
VHDCI
        Very High Density Cable Interconnect (SCSI)
        
VHDL
        VHSIC Hardware Description Language (ASIC)
        
VHF
        Very High Frequency
        
VHRCD
        Very High Resolution Color Display
        
VHSIC
        Very High Speed Integrated Circuit
        
VI
        VIsual editor (Unix)
        
VIA
        VAX Information Architecture (VAX, DEC)
        
VIAD
        VESA Image Area Definition (VESA)
        
VIC
        V.35 Interface Cable (cable)
        
VIC
        Vendor Independent ??? (VIM)
        
VICE
        VersatIle Commodore Emulator
        
VICI
        Visual Interface ConsortIum (org.)
        
VID
        Voltage IDentification
        
VIDL
        VIrus Description Language, "ViDL"
        
VIF
        Virtual Interrupt Flag (Intel, CPU)
        
VIFA
        Victoria Free-Net Association (org., USA)
        
VILE
        VI Like EMACS (Unix, VI, EMACS)
        
VIM
        Vendor Independent Messaging (Lotus, Borland, IBM, Novell, API)
        
VIM
        VI Improved (VI, Unix)
        
VIMF
        Vierer [kabel] In MetallFolie (VDE, SQ), "ViMF"
        
VINCE
        Vendor Independent Network Control Entity
        
VINES
        VIrtual NEtwork Software (Banyan, VINES, NOS)
        
VIO
        Virtual Input/Output
        
VIP
        Visual Information Projection [terminal] (Bull)
        
VIP
        VLB - ISA - PCI [board] (VLB, ISA, PCI)
        
VIPNET
        Voice Interactive Paging Network (network, MAN), "VIP-Net"
        
VIQR
        VIetnamese Quoted-Readable [specification] (VISCII, RFC 1456)
        
VIR
        Visual Information Retrieval (DB, Informix)
        
VIROS
        VIRtual memory Operating System (DEC, OS)
        
VIS
        Verlaessliche InformationsSysteme (GI)
        
VIS
        Virtual Instruction Set (Sun, CPU)
        
VIS
        Visual Interactive Simulation
        
VISCII
        VIetnamese Standard Code for Information Interchange
        
VISYON
        Variables Intelligentes Synchrones Optisches Netz (SNI, SDH)
        
VITAL
        VHDL Initiative Toward ASIC Libraries (ASIC, VHDL)
        
VITC
        Vertical Interval Time Code (video)
        
VK
        VideoKonferenz
        
VKI
        Verteilte Kuenstliche Intelligenz (KI, DAI)
        
VLA
        Volume Licence Agreement (Novell)
        
VLAN
        Virtual Local Area Network (LAN, IEEE 802.1q)
        
VLB
        VESA Local Bus (VESA)
        
VLD
        Variable Length Decoder (MPEG)
        
VLDB
        Very Large DataBase (DB)
        
VLF
        Very-Low-Frequency Band
        
VLF
        Virtual Lookaside Facility (IBM)
        
VLIW
        Very Long Instruction Word (CPU, IC)
        
VLM
        Virtual Loadable Module (Novell, Netware)
        
VLM
        Volume Logical Module (IBM, OS/2)
        
VLR
        Visitor Location Register (LR, GSM, GPRS, mobile-systems)
        
VLSI
        Very Large Scale Integration
        
VLSM
        Variable Length Subnet Mask (Internet)
        
VM
        Virtual Machine (IBM, OS, IBM 370, ESA, IBM 390)
        
VM
        Virtual Memory (OSF)
        
VMA
        Virtual Memory Address
        
VMB
        Virtual Machine Boot (IBM, OS/2)
        
VMC
        VESA Media Channel (VESA)
        
VMCF
        Virtual Machine Communications Facility (IBM, VM)
        
VMCMS
        Virtual Machine / Conversational Monitoring System (IBM, VM), "VM/CMS" 
        
VMD
        Virtual Manufacturing Device (MMS)
        
VME
        Virtual Machine Environment (IBM, VM)
        
VMESA
        Virtual Machine / Enterprise Systems Architecture (IBM, VM, ESA, CMS), "VM/ESA"
        
VMM
        Virtual Machine / Memory Manager (IBM, VM)
        
VMOS
        Vertical Metal Oxide Semiconductor (IC), "V-MOS"
        
VMP
        Virtual MultiPorting (POWER, CPU)
        
VMS
        Virtual Memory [operating] System (DEC, OS)
        
VMS
        Voice Mail System (GMS)
        
VMS
        Voice Management System
        
VMSP
        Virtual Machine / System Product (IBM, VM), "VM/SP" 
        
VMT
        Virtual Method Table
        
VMTP
        Versatile Message Transaction Protocol (RFC 1045)
        
VMTSS
        Virtual Machine Time-Sharing System (IBM)
        
VMU
        Visual Memory Unit (Sega, Dreamcast)
        
VNA
        Virtual Network Architecture (ATM)
        
VNA
        Virtual Network Architecture (Ungermann-Bass)
        
VNC
        Virtual Network Computer
        
VNC
        Virtual Network Computing (AT&T, Linux)
        
VNCA
        VTAM Node Control Application (IBM, VTAM)
        
VNF
        Virtual Network Feature
        
VNL
        Via Net Loss plan
        
VNLF
        Via Net Loss Factor
        
VNSM
        VINES Network and Systems Management (Banyan, VINES)
        
VO
        Virtual Organization
        
VOB
        Video OBject [format] (DVD)
        
VOD
        Video On Demand
        
VOFR
        Voice Over Frame Relay
        
VOI
        Verband Optischer Informationssysteme (org.)
        
VOICE
        Virtual OS/2 International Consumer Education (OS/2, user group)
        
VOIP
        Voice Over IP (IP, Internet, CTI)
        
VOL
        Voice-Over-IP (IP, Internet)
        
VON
        Voice On the Net [coalition] (USA, Internet)
        
VOODOO
        Versions Of Outdated Documents Organized Orthogonally (Mac)
        
VOP
        Voice Over Packet [processor] (Improv, IC), "VoP"
        
VORTEX
        Varian Omnitasking Real Time EXecutive (???) (OS, Varian)
        
VOS
        Virtual machine Operating System (OS, MTS)
        
VOS
        Virtual Operating System (OS, Stratus)
        
VP
        Virtual Path (ATM)
        
VP
        Virtual Processor (Amiga, AMIGADE)
        
VPA
        VAX Performance Advisor (DEC, VMS, VAX)
        
VPC
        Virtual Path Connection (ATM, VP)
        
VPCD
        Videotex Presentation Control Element (BTX, VPDE)
        
VPCI
        Virtual Path Connection Identifier (VP, ATM)
        
VPD
        Vital Product Data
        
VPDE
        Videotex Presentation Data Element (BTX)
        
VPDN
        Virtual Private Data Network
        
VPE
        Video Port Extensions (video)
        
VPI
        Virtual Path Identifier (ATM, VP)
        
VPI
        Virtual Private Internet (TradeWave)
        
VPICD
        Virtual Programmable Interrupt Controller Device (PIC), "VpicD"
        
VPL
        Virtual Path Link (UNI, ATM)
        
VPL
        Visual Programming Languages
        
VPMI
        Virtual Protected Mode Interface
        
VPN
        Virtual Private Network
        
VPP
        Value Purchase Plan (Adobe)
        
VPRT
        Verband Privater Rundfunk und Telekommunikation Org., Germany
        
VPSD
        VIA Platform Solutions Division
        
VPT
        Virtual Path Terminator (UNI, ATM)
        
VPU
        Video Processing Unit
        
VPUG
        Ventura Publishing User Group (org., DTP, user group)
        
VQC
        Vibrant Color Quality (Matrox)
        
VR
        Virtual Reality
        
VR
        Virtual Route (SNA, PSDN)
        
VR
        Virtuelle Realitaet
        
VRAI
        Virtual Reality Annual International [symposium] (IEEE, conference)
        
VRAM
        Volatile Random Access Memory (RAM, IC)
        
VRC
        Vertical Redundancy Check
        
VRD
        Virtual Retinal Display (VR)
        
VRG
        Vertical Replacement Gate (IC, MOSFET)
        
VRI
        [Nederlandse] Vereniging van Registerinformatic (org. Netherlands)
        
VRM
        Virtual Resource Manager
        
VRM
        Voltage Regulation Module (IC)
        
VRML
        Virtual Reality Modeling Language (VR, ISO/IEC 14772, W3C)
        
VROOMM
        Virtual Realtime Object Oriented Memory Manager (OOP)
        
VRS
        Voice Response System
        
VRTX
        Versatile Real Time eXecutive (OS)
        
VS
        VINES Security (Banyan, VINES)
        
VS1
        Virtual System - 1 (IBM, OS, OS/VS-1), "VS-1"
        
VSA
        Virtual Server Architecture
        
VSA
        Voodoo Scalable Architecture (3dfx)
        
VSAM
        Virtual Sequential Access Method (SAM)
        
VSAM
        Virtual Storage Access Method
        
VSAT
        Very Small Aperture Terminal
        
VSCE
        Videotex Service Control Element (BTX, VPDE)
        
VSD
        Vendor Specific Driver
        
VSE
        Virtual Storage Extended (IBM)
        
VSEA
        Visual Studio Enterprise Architect [edition] (MS, XML)
        
VSED
        Visual Studio Enterprise Developer [edition] (MS, XML)
        
VSEESA
        Virtual Storage Extended/Enterprise Systems Architecture, "VSE/ESA" 
        
VSESP
        Virtual Storage Extended/System Product (IBM), "VSE/SP"
        
VSI
        Verband der SoftwareIndustrie deutschlands [e.v.] (org.)
        
VSI
        Virtual Socket Interface alliance (org., ASIC, RL)
        
VSM
        ??? (Norm f. Tastatur)
        
VSM
        Virtual Storage Management
        
VSN
        Volume Serial Number (BS2000)
        
VSO
        Variable Speed Operation (VXA, Streamer)
        
VSP
        Virtual Single Processor
        
VSR
        Voice Storage and Retrieval
        
VSS
        Visual Source Safe (VB, MS)
        
VSS
        Voice Storage System
        
VST
        VermittlungsSTelle (Telekom), "VSt"
        
VST
        Virtual Studio Technology (Steinberg, audio)
        
VSU
        Video Service Unit
        
VT
        Virtual Terminal (DEC)
        
VT100
        Virtual Terminal 100 (DEC), "VT-100"
        
VTAM
        Virtual Telecommunications Access Method (IBM, SNA)
        
VTAME
        Virtual Telecommunications Access Method Entry (VTAM)
        
VTD
        Virtual Tape Device
        
VTI
        Virtual Terminal Interface
        
VTM
        Verband der Telekommunikationsnetz- und Mehrwertdiensteanbieter (org.)
        
VTOC
        Volume Table of Contents
        
VTOS
        Virtual Technology Operating System (OS, Tandy, TRS-80)
        
VTP
        Virtual Terminal Protocol
        
VTS
        Video Teleconferencing System
        
VTS
        Virtual Terminal Service (OSI)
        
VU
        Virtual User
        
VUD
        Verband der Unterhaltungssoftwareindustrie Deutschlands (org.)
        
VUDA
        VESA Unified Graphics Architecture (VESA)
        
VUE
        Visual User Environment (HP)
        
VUI
        Virtual User Interface (AMS, UI)
        
VUMA
        VESA Unified Memory Architecture (VESA)
        
VUMASBE
        VESA Unified Memory Architecture - System BIOS Extension (VESA), "VUMA-SBE"
        
VUP
        VAX Units of Performance (VAX, DEC), "VUPs" 
        
VV
        Virtuelle Verbindung
        
VVIDD
        VESA Video Interface for Digital Displays (VESA, LCD)
        

        
        









        

W2K
        Windows 2000 (Windows, MS)
        
W3C
        World Wide Web Consortium (WWW, org.)
        
WABI
        Windows Application Binary Interface (MS, Windows)
        
WAI
        Web Accessibility Initiative (WWW, W3C, WAI)
        
WAI
        Web Application Interface (WWW, Netscape)
        
WAIS
        Wide Area Information Service (Internet)
        
WAITS
        Westcoast Alternative to ITS
        
WAM
        Warren Abstract Machine (PROLOG)
        
WAM
        Web Application Manager (MS, Windows)
        
WAMIS
        Wireless, Adaptive and Mobile Information Systems (ESTO)
        
WAN
        Wide Area Network
        
WAND
        Wide Area Network Distribution (WAN)
        
WAP
        Wireless Application Protocol (mobile-systems, WLAN)
        
WAP
        Wissenschaftliche ArbeitsPlatzrechner
        
WASP
        Web stAndardS Project (WWW, W3C)
        
WAT
        West Africa Time [-0100] (TZ)
        
WATS
        Wide Area Telephone Service
        
WB
        WorkBench (Amiga, Commodore)
        
WBC
        Wide Band Channel (FDDI)
        
WBEM
        Web Based Enterprise Management [protocol] (DMTF, BMC, Cisco, Compaq, Intel, MS)
        
WBI
        Web Browser Intelligence (WWW, IBM)
        
WBS
        WissensBasierte Systeme (KI)
        
WC
        WildCard multicast route entry (PIM, Multicast)
        
WC
        Word Count (Unix)
        
WCAG
        Web Content Accessibility Guidelines (WAI)
        
WCB
        Write Combining Buffer (CPU)
        
WCCE
        World Conference on Computers in Education (IFIP, conference)
        
WCGA
        World Computer Graphics Association (org.)
        
WCMS
        Web Content Management Software / System (CMS)
        
WCS
        Writable Control Store (VAX, DEC)
        
WD
        Western Digital [corporation] (manufacturer)
        
WD
        Working Draft
        
WDK
        Word Developers Kit (MS)
        
WDL
        Windows Driver Library (MS, Windows)
        
WDL
        World Definition Language
        
WDM
        Wavelength Division Multiplexing [protocol]
        
WDM
        Windows / Win32 Driver Model (MS, Windows)
        
WDMCSA
        Windows Driver Model Connection and Streaming Architecture (MS, Windows, WDM)
        
WDP
        WatchDog Process
        
WDS
        WatchDog Server
        
WDT
        Watch Dog Timer
        
WDT
        Western  [european] Daylight Time [+0100] (TZ, WET)
        
WEBDAV
        Web Distributed Authoring and Versioning (WWW), "webDAV"
        
WECA
        Wireless Ethernet Compatibility Alliance (org., WLAN, LAN)
        
WEEB
        Western Europe EDIFACT Board (org., EDIFACT), "WE/EB"
        
WEFT
        Web Embedding Font Tool (MS, WWW)
        
WELL
        Whole Earth 'Lectronic Net (network)
        
WEP
        Wired Equivalent Privacy (WLAN)
        
WESTNET
        WESTern regional NETwork (network, USA), "Westnet"
        
WET
        Western European Time [+0000] (TZ, WDT)
        
WFC
        Wait for Caller (BBS)
        
WFC
        Windows Foundation Classes (MS, Java, API)
        
WFM
        Wired For Management (Intel), "WfM"
        
WFM
        Works For Me (slang, Usenet, IRC)
        
WFMC
        WorkFlow Management Coalition (org.), "WfMC"
        
WFQ
        Weighted Fair Queueing (VOIP)
        
WFW
        Windows For Workgroups (MS), "WfW" 
        
WG
        Working Group (SC, ISO, IEC, ETSI)
        
WHCA
        White House Communications Agency (DISA)
        
WHIIG
        Windows Hardware Instrumentation Implementation Guidelines (MS, Windows)
        
WHOLIS
        World Health Organization Library Information System (org., UNO)
        
WHOSIS
        World Health Organization Statistical Information System (org., UNO)
        
WHQL
        Windows Hardware Quality Lab (MS, Windows, PC97)
        
WIA
        Windows Image Aquisition (MS, Windows, API, DDI)
        
WIDD
        Web InformationsDienst Deutschland (WWW, Neuss, Germany)
        
WIF
        Web Interface Facility (WWW, MVS, OS/390)
        
WIMAN
        WIreless Metropolitan Area Network
        
WIMP
        Window, Icon, Menu, Pointing device
        
WIN
        WIssenschaftsNetz (network, DFN)
        
WINHEC
        WINdows Hardware Engineering Conference (MS, Windows, conference), "WinHEC"
        
WINLAB
        Wireless Information Network LABoratory (org., STC, USA)
        
WINS
        Windows Internet Naming Service (MS, Windows NT)
        
WIPO
        World Intellectual Property Organization (org.)
        
WISC
        Wisconsin Integrally Synchronized Computer
        
WISE
        World-wide Information System for r&d Efforts (WWW, IGD)
        
WISIA
        Wissenschaftliches InformationsSystem fuer den Internationalen Artenschutz (WWW)
        
WITT
        Workstation Interactive Test Tool (IBM)
        
WIZOP
        WIzard sysOP, "WizOp" 
        
WKS
        Well Known Services (DNS, Internet)
        
WLAN
        Wireless Local Area Network (LAN, WLAN)
        
WLANA
        Wireless Local Area Network Alliance (org., WLAN, LAN)
        
WLBS
        Windows Load Balancing Service (MS, Windows NT)
        
WLIF
        Wireless LAN Interoperability Forum (org., WLAN, LAN)
        
WLL
        Wireless Local Loop
        
WLO
        Windows Library Objects
        
WLP
        Wafer Level Packaging
        
WLS
        White Line Skip (Fax)
        
WMA
        Windows Media Audio [CODEC] (MS, Windows, audio, CODEC)
        
WMI
        Windows Management Instrumentation / Interface (MS, Windows, WMI, CIM)
        
WML
        Wireless Markup Language (mobile-systems, WAP)
        
WMRM
        Windows Media Rights Manager (MS, Windows)
        
WMS
        Warehouse Management System (DB)
        
WMS
        Workflow Management Systems
        
WMV
        Windows Media Video [CODEC] (MS, Windows, video, CODEC)
        
WNIM
        Wide area Network Interface Module
        
WNPP
        Work-Needing and Prospective Packages (Linux, Debian)
        
WON
        World-O-Networking (BeOS)
        
WORDIA
        WORD Internet Assistant (MS)
        
WORM
        Write Once Read Many (CD)
        
WOSA
        Windows Open System Architecture (MS)
        
WOSAXCEM
        WOSA eXtensions for Control, Engineering and Manufacturing (WOSA, MS)
        
WOSAXFS
        WOSA eXtensions for Financial Services (WOSA, MS), "WOSA X FS" 
        
WOSAXRT
        WOSA eXtensions for Real-Time market data (WOSA, MS)
        
WOSC
        World Organization of Systems and Cybernetics (org., France)
        
WOW
        Windows On Windows
        
WP
        Word Perfect
        
WPS
        Windows Printing System (MS, Windows)
        
WPS
        Word Processing Software
        
WPS
        WorkPlace Shell (OS/2, IBM, Shell)
        
WQL
        WMI Query Language (MS, Windows, WMI)
        
WRAM
        Window Random Access Memory (RAM, IC, Samsung, Matrox)
        
WRB
        Web Request Broker (Oracle, WWW)
        
WRT
        Whitewater Resource Toolkit (Windows, TPW)
        
WRT
        With Respect To (slang, Usenet, IRC)
        
WS
        Web Server (Corel)
        
WSEB
        Warp Server E-Business (IBM, OS/2), "WSeb"
        
WSF
        Work Station Feature (IBM)
        
WSF
        Work Station Function (IN)
        
WSH
        Windows Scripting Host (MS, Windows, COM, WSH)
        
WSP
        Wireless Session Protocol (WAP, mobile-systems)
        
WSP
        Workstation Security Package
        
WSS
        Windows Sound System (Windows, audio)
        
WTC
        Windows Terminal Controller
        
WTF
        What / Where / Who / Why The Fuck (DFUe, Usenet, IRC)
        
WTH
        What / Where / Who / Why The Hell (DFUe, Usenet, IRC)
        
WTLS
        Wireless Transport Layer Security
        
WTP
        Wireless Transport Protocol (WAP, mobile-systems)
        
WTS
        Web Transaction Security (WWW)
        
WTX
        Wokstation Technology eXtended [format]
        
WVNET
        West Virginia Network for Educational Telecomputing (network, USA)
        
WVSO
        WiederVerwendbare SoftwareObjekte
        
WWDC
        World Wide Developer Conference (Apple)
        
WWIMS
        Worldwide Warning Indicator Monitoring System (mil.)
        
WWMCCS
        Worldwide Military Command and Control System (mil., predecessor, GCCS)
        
WWOLS
        World Wide On-Line System (mil.)
        
WWW
        World Wide Waiting (slang)
        
WWW
        World Wide Web (Internet)
        
WYGIWYNTYH
        What You Get Is What You Never Thought You Had (slang)
        
WYSBYGI
        What You See Before You Get It (DTP)
        
WYSIWIS
        What You See Is What I See
        
WYSIWYG
        What You See Is What You Get (DTP)
        

        
        









        

X11
        X window System version 11 (X-Windows)
        
XA
        eXtended Architecture (IBM, VM, ESA, VM/ESA, XC)
        
XAA
        Xfree86 Acceleration Architecture (X-Windows)
        
XACT
        Xante's Accurate Calibration Technology (Xante), "X*ACT"
        
XAPIA
        X.400 API Association (org., X.400, API)
        
XBP
        XBase Parts (Xbase/2, OS/2, DB)
        
XC
        eXtended Configuration (IBM, ESA, VM)
        
XCCI
        X Common Client Interface (X-Windows), "X CCI" 
        
XCEM
        eXtensions for Control, Engineering and Manufacturing (API, MS, Windows)
        
XCHS
        eXtended Cylinder Head Sectors (EIDE)
        
XCMOS
        eXtended CMOS (IC, CMOS)
        
XCMS
        X Color Management System (X-Windows), "Xcms" 
        
XCOFF
        eXtended Common Object File Format (Unix)
        
XCUTS
        X Commands and Utilities Test Suite (X/Open)
        
XDM
        X Display Manager (X-Windows)
        
XDMCP
        X Display Manager Control Protocol (X-Windows)
        
XDR
        eXternal Data Representation (ONC, RPCL, Sun, RFC 1832)
        
XDS
        Xeros Data Systems (manufacturer, Xerox)
        
XES
        Xerox Engineering Systems (Xerox)
        
XFCB
        Extended File Control Block
        
XFE
        X Front End (X-Windows)
        
XFN
        X/open Federated Naming (X/Open)
        
XFS
        eXtended File System (JFS, SGI, Unix)
        
XG
        eXtended General MIDI (Yamaha, MIDI)
        
XGA
        eXtended Graphics Adapter (IBM, PS/2)
        
XHTML
        eXtended HyperText Markup Language (HTML, WWW)
        
XID
        [SNA] eXchange IDentifier (SNA)
        
XIE
        X Image Extension (X-Windows)
        
XINU
        XINU Is Not Unix (OS)
        
XIOS
        eXtended Input/Output System (Novell, Netware)
        
XLINK
        XML LINKing language (XML)
        
XMAPI
        eXtended Messaging Application Program Interface (API)
        
XMF
        eXtensible Music Format (MMA, MIDI)
        
XMI
        eXtended Memory Interconnect (DEC)
        
XMI
        XML Metadata Interchange [format]
        
XML
        eXtensible Markup Language (WWW, XML)
        
XMM
        eXtended Memory Manager (DOS, LIM)
        
XMP
        X/open Management Protocol (X/Open, X-Windows)
        
XMS
        eXtended Memory Specification (DOS, LIM)
        
XMS
        eXtended Multiprocessor operating System (OS)
        
XN
        eXecution Node
        
XNS
        Xerox Network Services / Systems / Standard (Xerox, XNS)
        
XNSCP
        [PPP] XNS IDP Control Protocol (RFC 1764, Xerox, XNS, PPP, XNS, IDP)
        
XNSIDP
        Xerox Network Services - Internet Datagram Protocol (Xerox, Internet, XNS), "XNS-IDP" 
        
XNSITP
        Xerox Network Services/Internet ??? Protocol (Xerox, XNS), "XNS/ITP"
        
XOFF
        eXchange OFF (MODEM)
        
XON
        eXchange ON (MODEM)
        
XOT
        X.25 Over TCP (Cisco, X.25, TCP, RFC 1613)
        
XP
        eXtreme Programming
        
XPC
        X Performance Characterization [group] (GPC, X-Windows)
        
XPG
        X/open Portability Guide (X/Open, X-Windows)
        
XPGR3
        X/open Portability Guide Release 3 (X/Open, X-Windows)
        
XPP
        eXtrem Processor Platform (MPP)
        
XPS
        eXPert System (AI, XPS)
        
XPS
        eXtended Parallel Server (DB, Informix)
        
XPSB
        X - Protocol Stream Benchmark (XPC, X-Windows)
        
XRIP
        eXtended ??? Routing Information Protocol (Novell, Netware)
        
XRT
        eXtensions for Real-Time market data (API, MS, Windows)
        
XSD
        eXtra Space Design [monitor] (Philips)
        
XSDT
        eXtended System Description Table (ACPI)
        
XSL
        eXtensible Stylesheet Language (XML, XSL)
        
XSLT
        eXtensible Stylesheet Language Transformations (XSL)
        
XSMD
        eXtended Storage Module Driver interface
        
XT
        eXtended Technology (IBM, PC)
        
XTI
        X/open Transport Interface (X/Open, X-Windows)
        
XTP
        eXpress Transport Protocol
        
XUI
        X-windows User Interface (UI, X-Windows)
        
XUIDL
        X-Unique-ID-Listing. (UIDL, POP3), "X-UIDL"
        
XUMA
        eXpertensystem UMweltgefaehrlichkeit von Altlasten (XPS)
        
XVT
        eXecutive Vector Table (BS2000)
        

        
        









        

Y2K
        [Year 2000] [problem] (slang)
        
YAAS
        Yet Another Acronym Server (WWW)
        
YABA
        Yet Another Bloody Acronym (slang)
        
YACC
        Yet Another Compiler Compiler (Unix)
        
YADE
        Yet Another DSSSL Engine (DSSSL)
        
YAFIYGI
        You asked for it, you got it (Usenet, IRC, slang)
        
YAHOO
        Yet Another Hierarchically Officious Oracle (WWW)
        
YASOS
        Yet Another Scheme Object System
        
YAST
        Yet Another Setup Tool (Linux, SUSE), "YaST"
        
YAUN
        Yet Another Unix Nerd
        
YAY
        Yet Another YACC (YACC, Bull)
        
YCPS
        Yale Center for Parallel Supercomputing (org., USA, HPC)
        
YHTWFWYWTS
        You Have To Wait For What You Want To See (slang, WYSIWYG)
        
YMMV
        Your Mileage May Vary (slang)
        
YSM
        Yourdon Structured Method
        
YST
        Yukon Standard Time [-0900] (TZ)
        

        
        









        

ZAK
        Zero Administration Kit (ZAW, MS, Windows NT)
        
ZAPP
        Zero Assignment Parallel Processor
        
ZAW
        Zero Administration initiative for Windows (MS, Windows NT)
        
ZBR
        Zone Bit Recording
        
ZC
        Zone Co-ordinator (FidoNet)
        
ZCAV
        Zone Constant Angular Velocity
        
ZCLV
        Zoned Constant Linear Velocity (DVD, DVD-RAM)
        
ZCV
        Zortech Class Viewer (Zortech)
        
ZDS
        Zenith Data Systems (manufacturer)
        
ZDVA
        Zentrale DatenVerarbeitungsAnlage [des bundes]
        
ZE
        Zentraleinheit (CPU)
        
ZEAS
        ZEntrales AbsatzanalyseSystem (MBAG)
        
ZEBES
        Zentrales teile-BEstandsSteuerungssystem (MBAG)
        
ZEDAT
        ZentralEinrichtung DATenverarbeitung (FUB, Org)
        
ZEDIS
        ZEntrales teile-DispositionsSystem (MBAG)
        
ZEPRAS
        ZEntrales PReisabwicklungs- und AnalyseSystem (MBAG)
        
ZESOD
        ZEntrale teileSOrtimentDatei (MBAG)
        
ZEVIS
        ZEntrales VerkehrsInformationsSystem (Kraftfahrzeugbundesamt)
        
ZIAM
        Zentrum fuer Industrielle Anwendungen Massiver parallelitaet [gmbh] (org.)
        
ZIB
        [konrad-zuse] Zentrum fuer Informationstechnik Berlin (org.)
        
ZIF
        Zero Insertion Force [socket] (IC)
        
ZIL
        Zork Implementation Language (Infocom)
        
ZIP
        Zigzag Inline Package (VRAM)
        
ZIP
        Zone Information Protocol (AppleTalk)
        
ZISC
        Zero Instruction Set Computer (CPU)
        
ZIT
        interdisziplinaeres forschungsZentrum fuer Informatik und Technik (org., Uni Paderborn, Germany)
        
ZKA
        Zentraler Kreditausschuss banking, Org., Germany
        
ZMH
        Zone Mail Hour (FidoNet)
        
ZMT
        Zentrum fuer Multimediale Telekommunikation (BERKOM)
        
ZOC
        Zap-O-Comm (OS/2, DFUe)
        
ZOS
        Z/Operating System (IBM, Java), "z/OS"
        
ZPR
        Zentrum fuer Paralleles Rechnen (org., Uni Koeln, Germany)
        
ZPR
        Zero Power Resistance
        
ZRE
        Zero Rate Error
        
ZRZ
        Zentrales RechenZentrum (org., TUB)
        
ZSI
        Zentralstelle fuer Sicherheit in der Informationstechnik (org., BSI, predecessor)
        
ZSL
        Zero Slot LAN (LAN)
        
ZV
        Zoomed Video (video)
        
ZVM
        Z/Virtual Machine (IBM, VM), "z/VM"
        
ZWEI
        ZWEI Was EINE Initially (EINE, LISP)
        
ZZF
        Zentralamt zur Zulassung von Fernmeldeeinrichtungen (org., Telekom, predecessor, BZT)