The first recorded computer "bug" was a real moth found in the Harvard Mark II in 1947

Operators of the Harvard Mark II found a moth trapped in a relay on September 9, 1947, and taped it into the logbook with the note "First actual case of bug being found."

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computerhistory.orgTrusted · 60/100

The source excerpt clearly states that on September 9, 1947, a moth was found trapped in the Harvard Mark II computer, recorded as the first actual computer bug.

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75% signal confidence

The provided specialized source from the Computer History Museum supports the claim that the first recorded computer 'bug' was a real moth found in the Harvard Mark II in 1947. No community evidence was provided to further support or contradict the claim.

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Server-published final score: 90%

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