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<title>Bits 'n Bytes</title>
<body bgcolor="#ffffcc">
<hr>
<center>
<h1>Bits 'n Bytes.</h1>
</center>
<hr>
This is basic Computer Science but its worth restating the basics
sometimes.
<p>
<hr>
<h2>bits</h2>
A bit is the smallest component in computer memory, it has
two states, either ON or OFF. These states are represented as 1 or 0
and thus everything is based on binary arithmatic.
<pre>
Off == 0
On == 1
</pre>
<p>
<hr>
<h2>Bytes</h2>
For convinence, bits are grouped into blocks of 8, these blocks
are called Bytes.
An integer byte can store any value from 0 -> 255.
-------------------------
128 64 32 16 8 4 2 1
-------------------------
8 4 2 1 8 4 2 1
-------------------------
F F
-------------------------
<h2>KiloBytes</h2>
This is a thousand bytes. The exact value is 2 to the power of <superscript>10</superscript>
or 1,024
<h2>MegaBytes</h2>
This is a Million bytes. The exact value is 2 to the power of <superscript>20</superscript>
or 1,048,576
<h2>GigaBytes</h2>
The exact value is 2 to the power of <superscript>30</superscript>
or 1,073,741,824
<h2>TeraBytes</h2>
The exact value is 2 to the power of <superscript>40</superscript>
or 1,099,511,627,776 (big....)
<p>
<hr>
<p>
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<address>Martin Leslie
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