ZAP’S FACTS!
COMPUTERS

The first computer "bug" was a real moth.

In 1947, engineers discovered a real moth stuck in the Harvard Mark II computer, marking the first recorded case of a "computer bug.

1 min read
A cartoon moth with big eyes and colorful wings buzzes around a glowing light bulb, symbolizing a computer "bug.
THE FULL STORY

In 1947, engineers working on the Harvard Mark II computer found a moth jammed inside one of its relays. They taped it into their logbook with the note “first actual case of bug being found.”

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