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	<title>Moving the Curve &#187; history</title>
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		<title>First actual case of bug being found</title>
		<link>http://www.stevideter.com/2008/09/09/first-actual-case-of-bug-being-found/</link>
		<comments>http://www.stevideter.com/2008/09/09/first-actual-case-of-bug-being-found/#comments</comments>
		<pubDate>Tue, 09 Sep 2008 16:43:48 +0000</pubDate>
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		<category><![CDATA[grace hopper]]></category>

		<guid isPermaLink="false">http://www.stevideter.com/?p=30</guid>
		<description><![CDATA[On September 9, 1947, the Harvard University Mark II Aiken Relay Calculator started having problems. The operators opened it up, and discovered a moth between the points of Relay #70, in Panel F. The moth was removed at taped into the log book with the comment &#8220;First actual case of bug being found.&#8221; When told [...]


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			<content:encoded><![CDATA[<p>On September 9, 1947, the Harvard University Mark II Aiken Relay Calculator started having problems. The operators opened it up, and discovered a moth between the points of Relay #70, in Panel F. The moth was removed at taped into the log book with the comment <a href="http://americanhistory.si.edu/collections/object.cfm?key=35&#038;objkey=30" title="Log book with bug" target="_blank">&#8220;First actual case of bug being found.&#8221;</a></p>
<p>When told of the event, <a href="http://en.wikipedia.org/wiki/Grace_hopper">Grace Murray Hopper</a> was reported to have quipped they were &#8220;debugging&#8221; the machine. There is plenty of evidence the term &#8220;bug&#8221; for a flaw in electronics had been around for decades before this event, this usage helped bring it into the modern popular terminology. </p>
<p>This is also the first introduction that many of us have to Rear Admiral Hopper, a truly remarkable woman. She wrote the first compiler for an electronic computer, <a href="http://en.wikipedia.org/wiki/A-0_programming_language" target="_blank" title="A-0">A-0</a>. She championed the idea that computer languages should be more like English instead of machine code. And she helped establish standards for testing systems and components. </p>
<p>The next time I have to debug a program written in a <a href="http://en.wikipedia.org/wiki/Third-generation_programming_language" title="Third Generation Language" target="_blank">3GL</a>, I&#8217;ll take a moment to thank Grace Hopper for laying the groundwork that made it easier for me. Thank you, Amazing Grace!</p>


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