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'\" t
.\" Copyright (C) 2001 Andries Brouwer <aeb@cwi.nl>
.\"
.\" Permission is granted to make and distribute verbatim copies of this
.\" manual provided the copyright notice and this permission notice are
.\" preserved on all copies.
.\"
.\" Permission is granted to copy and distribute modified versions of this
.\" manual under the conditions for verbatim copying, provided that the
.\" entire resulting derived work is distributed under the terms of a
.\" permission notice identical to this one.
.\"
.\" Since the Linux kernel and libraries are constantly changing, this
.\" manual page may be incorrect or out-of-date. The author(s) assume no
.\" responsibility for errors or omissions, or for damages resulting from
.\" the use of the information contained herein. The author(s) may not
.\" have taken the same level of care in the production of this manual,
.\" which is licensed free of charge, as they might when working
.\" professionally.
.\"
.\" Formatted or processed versions of this manual, if unaccompanied by
.\" the source, must acknowledge the copyright and authors of this work.
.\"
.\" Japanese Version Copyright (c) 2002 NAKANO Takeo all rights reserved.
.\" Translated Wed 2 Jan 2002 by NAKANO Takeo <nakano@apm.seikei.ac.jp>
.\"
.TH UNITS 7 2001-12-22 "Linux" "Linux Programmer's Manual"
.SH ̾
units, kilo, kibi, mega, mebi, giga, gibi \- 10 ʤ 2 ʤƬ
.SH
.SS 10 ʤƬ
SI ñ̷ϤǤ 10 ߾ƬѤ롣
ȥ 1000 ȥ롢ᥬåȤ 1000000 åȤǤ롣
ɸŪƬ
.RS
.TS
l l l.
Ƭ ̾
y 襯(yocto) 10^-24 = 0.000000000000000000000001
z ץ(zepto) 10^-21 = 0.000000000000000000001
a (atto) 10^-18 = 0.000000000000000001
f ե(femto) 10^-15 = 0.000000000000001
p ԥ(pico) 10^-12 = 0.000000000001
n ʥ(nano) 10^-9 = 0.000000001
u ޥ(micro) 10^-6 = 0.000001
m ߥ(milli) 10^-3 = 0.001
c (centi) 10^-2 = 0.01
d ǥ(deci) 10^-1 = 0.1
da ǥ(deka) 10^ 1 = 10
h إ(hecto) 10^ 2 = 100
k (kilo) 10^ 3 = 1000
M ᥬ(mega) 10^ 6 = 1000000
G (giga) 10^ 9 = 1000000000
T ƥ(tera) 10^12 = 1000000000000
P ڥ(peta) 10^15 = 1000000000000000
E (exa) 10^18 = 1000000000000000000
Z (zetta) 10^21 = 1000000000000000000000
Y 西(yotta) 10^24 = 1000000000000000000000000
.TE
.RE
.sp
ޥεϥꥷʸΦ̤Ǥ뤬
ASCII ǥƥȤҤƤơꥷʸȤʤ
u Ƚ뤳Ȥ¿
.sp
.RS
http://physics.nist.gov/cuu/Units/prefixes.html
.RE
.sp
⻲ͤˤƤۤ
.SS 2 ʤƬ
2 ʤƬ 10 ʤƬȻƤ뤬 'i' դ
(ޤ "Ki" ˤĤƤʸ 'K' ǻϤޤ)
̾ϡƱ餤 10 Ƭκǽβˡ
2 ʿǤ뤳Ȥ̣ "bi" Τˤʤ롣
.RS
.TS
l l l.
Ƭ ̾
Ki (kibi) 2^10 = 1024
Mi (mebi) 2^20 = 1048576
Gi (gibi) 2^30 = 1073741824
Ti ƥ(tebi) 2^40 = 1099511627776
Pi ڥ(pebi) 2^50 = 1125899906842624
Ei (exbi) 2^60 = 1152921504606846976
.TE
.RE
.sp
.RS
http://physics.nist.gov/cuu/Units/binary.html
.RE
.sp
⻲ͤˤƤۤ
.SS ͻ
2 ʤƬ줬Ƴϡ
k=1000 K=1024 Τ褦˻ȤΤɤΤ줿ä
(b=ӥåȡB=Х δط˻Ƥ)
ǰʤ M Ϻǽ餫ʸʤΤǡ
2 ʤǤ뤳Ȥˤʸˤ뤳ȤϤǤʤä
ϤΤȤϤޤ礭ǤϤʤä
ʤʤ⥸塼ǥ 2 ߾ˤʤΤäΤǡ
Τ褦ʤȤǤϡ֥Хȡפ 1024 Хȡ
֥ᥬХȡפ 1048576 ХȤǤȤߤʤƤǤ롣
ǽƬΡ֥פȤ֥ᥬפۣ˱ѤƤΤ
Τԥ塼˴ϢǤϡ餬ּºݤΰ̣פˤʤäƤä
θǥΥƥΥꡢ
ǥǤդοͤȤ褦ˤʤä
ɤäĤλФ餯³ȡ
ǥΥ٤ƤɸȤȤ˹դ
ʤ k=1000, M=1000k, G=1000M Ǥ롣
ϤҤɤʤä14.4k ǥǤ k=1000,
1.44MB եåԡǤ M=1024000 ˤʤä
1998 ǯˡIEC Ͼ嵭Τ褦 2 ѤƬǧ
ˤäξԤϤä̤뤳Ȥǽˤʤä
äƺǤϡMB=1000000B ǡMiB = 1048576B ʤΤǤ롣
եեȥǤ⡢
ץिϤäȤ˽ƤƤ롣
Linux ͥϡ֡ȤȼΤ褦ʥåФ
.sp
.RS
.nf
hda: 120064896 sectors (61473 MB) w/2048KiB Cache
.fi
.RE
.sp
MB ϥᥬХȤǡKiB ϥӥХȤǤ롣
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