Random conversation in Matt McGrath’s office a couple years ago after reading Nick Chrisman’s book we all knew

Grace Hopper, developer of the first compiler – A-0 (Arithmatic Language 0), traced an error in the Harvard Mark II to a moth trapped in a relay

• Grace Hopper, developer of the first compiler – A-0 (Arithmatic Language 0), traced an error in the Harvard Mark II to a moth trapped in a relay

• Today errors in a program are termed a bug
• The first use of the term bug is believed to have been by Thomas Edison in 1878 in a letter to an associate describing minor mechanical faults in his phonograph

First practical stored program computer developed under Maurice Wilkes at Manchester – the EDSAC

• First practical stored program computer developed under Maurice Wilkes at Manchester – the EDSAC

• Idea originated with Pres Eckert, John Mauchly, and John von Neumann in 1945 (EDVAC, operational in 1951)