The computing term bug originated from a moth found in the Harvard Mark II computer
the verdict
REFUTED
the evidence says no
confidence 0/100
While the famous 1947 moth incident in the Harvard Mark II computer popularized the story of a physical bug, the computing term 'bug' had already been used in engineering and electrical contexts since the 1870s.
Evidence against · 3
Wikipedia: Software bug
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Reference article covering this claim directly
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More against · 2
americanhistory.si.edu: Log Book With Computer Bug
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Notes engineering use for over a century and labels the moth as the 'first actual case of bug being found'.
si.edu: (untitled)
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States engineers called flaws bugs for over a century, while confirming the 1947 moth incident logbook entry.