The First Computer Bug Was a Real Bug — Factcovery

On September 9, 1947, engineers working on the Harvard Mark II computer found an actual moth trapped in a relay, causing a malfunction. Grace Hopper's team taped it into the logbook with the note "First actual case of bug being found." The moth is preserved at the Smithsonian Institution to this day.

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Smithsonian Institution

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Published: March 16, 2026
Views: 3,018
Category: technology

technology history

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