Picture of what is claimed to be the first-ever computer bug, 1947

Firstcomputerbug I'm working on the Flora and Fauna chapter at the moment so thought I'd share this image of what is claimed to be the first ever computer bug, found by a technician working for the legendary computer scientist Rear Admiral Grace Hopper in 1947.

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".

In 1988, the log, with the moth still taped by the entry, was in the Naval Surface Warfare Center Computer Museum at Dahlgren, Virginia.

Courtesy of the Naval Surface Warfare Center, Dahlgren, VA., 1988.

NHHC Collection

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