The First Computer Bug Was a Dead Bug

In Reality, The First Computer Bug Was a Dead Bug

The first computer bug was actually a dead bug, as you may know. Computer bugs are known as errors or faults caused by flaws in computer systems or programs.

  • Actually a dead bug, the first computer bug. We are aware that a computer bug is an error or defect brought on by a weakness in the system or software that uses computers.
  • Thomas Edison was the first to refer to a technological error as a "bug."

The earliest known instance of a computer bug was noted on September 9, 1947. American computer scientist Grace Hopper, a veteran of the U.S. Navy, captured it on tape. She noted the fault in the machine's logbook while using a Harvard Mark II computer.


She began tracking down the issue when she detected a problem with the computer's performance. A dead moth that had become lodged between the computer's relay contacts was discovered by Hopper. The moth was taken out, and it was taped inside Mark II's Log. She scribbled, "First actual case of insect being found," below the moth.

Hopper is still credited with making the logbook entry even though some individuals have asserted that someone else discovered the moth within the computer.

The first computer bug's tale is so presented here.



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