First programming bug

The term "debugging" coined by Cobol master; Grace Hopper, after finding an actual bug in their computational machinery.
Attached is the actual original occurrence of said programing event.
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The First "Computer Bug" Moth found trapped between points at Relay # 70, Panel F, of the Mark II Aiken Relay Calculator while it was being tested at Harvard University, 9 September 1947. The operators affixed the moth to the computer log, with the entry: "First actual case of bug being found". They put out the word that they had "debugged" the machine, thus introducing the term "debugging a computer program".
Http://en.wikipedia.org/wiki/File:H96566k.jpg