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Origin of the term computer bug

Explore the true origin of the term 'computer bug' and verify claims about the first recorded computer bug in 1947.

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pari

@pari · Oct 22, 2026

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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Source: computerhistory.orgTrusted · 60/100

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