Tester's day

Tester's day

On September, 9 1945 the scientists of the Harvard University while testing the computer Mark II Aiken Relay Calculator have found a moth which has got stuck between the contacts of the electromechanical relay.

The work they performed required some description, and the word has been found - «debugging» (literally: disposal of an insect) - and nowadays it is used to describe theprocess of identifying and eliminating bugs which cause a computer to malfunction.

The removed insect was pasted into the computer log with the entry: “First actual case of bug being found”, and was then transferred to the computermuseum.