The first computer bug was a literal bug.

To be exact, a moth.

On Sept 9, 1947, a moth got trapped in Harvard University's Mark II computer -- causing multiple errors.

This bug disrupted the electronics inside the Mark II.

Here's a photo of that first computer bug.

@atomicpoet i'm curious, is this why the name "bug" was given to computer errors?
@ipg Yes.

@atomicpoet I remember reading the word "bug" was used way before 1947.

I could only find Edison's use of it in 1878 but I remember reading about an even older reference but a quick search didn't help me find it.

Edited to add link to source: https://interestingengineering.com/innovation/the-origin-of-the-term-computer-bug

@ipg

What is the origin of the term "computer bug"?

Computer bugs are occupational hazards for programmers and software developers. But have you ever wondered about the origin of the term computer bug?

Interesting Engineering
@hvangalen Insects appear to have a propensity to get into places they should not.
@ariaflame @hvangalen kinda like computers... 😋