48 lines
1.5 KiB
Text
48 lines
1.5 KiB
Text
<page xmlns="http://projectmallard.org/1.0/"
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type="topic" style="task"
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id="units">
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<info>
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<revision version="0.2" pkgversion="3.11" date="2014-01-26" status="review"/>
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<link type="guide" xref="index#other" group="other" />
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<include href="legal.xml" xmlns="http://www.w3.org/2001/XInclude"/>
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<credit type="author copyright">
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<name>Phil Bull</name>
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<email>philbull@gmail.com</email>
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<years>2011</years>
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</credit>
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<credit type="author copyright">
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<name>Michael Hill</name>
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<email>mdhillca@gmail.com</email>
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<years>2011, 2014</years>
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</credit>
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<desc>Units of measure for memory and disk space</desc>
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</info>
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<title>Is GiB the same as GB (gigabyte)?</title>
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<comment>
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<cite date="2011-06-18" href="mailto:philbull@gmail.com">Phil Bull</cite>
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<p>Answer this question, quite briefly.</p>
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</comment>
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<p>The memory and disk space statistics are displayed using <em>IEC binary
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prefixes</em>, KiB, MiB, GiB, TiB (for kibi, mebi, gibi and tebi). These are
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intended to distinguish binary reporting of sizes used in System Monitor
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(multiples of 1024) from decimal sizes (multiples of 1000) commonly used, for
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instance, in packaging of hard disks.</p>
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<p>Typical binary units:</p>
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<list>
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<item><p>1 KiB = 1024 bytes</p></item>
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<item><p>1 MiB = 1048576 bytes</p></item>
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<item><p>1 GiB = 1073741842 bytes</p></item>
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</list>
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<p>An external hard drive, advertised as 1.0 TB (terabytes), would display
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as 0.909 TiB (tebibytes).</p>
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</page>
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