Sept 9, 1945: the first computer "bug" was an actual moth taped into a logbook

eldonredwards · x · 2026-09-09

On September 9, 1945, Grace Hopper's team recorded the first computer "bug": a moth removed with tweezers from a Harvard Mark II relay and taped into the logbook. Hopper went on to invent the first compiler for a universal programming language. A classic tech-history anecdote resurfaced on its anniversary.

Related event: The First Computer Bug Was a Real Moth(2 posts)→

Original post →

More from Fun

Fun channel →