On September 9, 1947, Grace Hopper's team at Harvard pulled a dead moth out of the Mark II computer's relay, taped it into the logbook with the note 'first actual case of bug being found,' and preserved the page that gave software its oldest metaphor
On September 9, 1947, engineers at Harvard's Computation Laboratory pulled a moth from Relay 70 of the Mark II computer and taped it into the logbook. The word 'bug' was already 70 years old — and that's exactly why the joke worked.