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