I happened to be watching a bit of Countdown the other day (I definitely wasn’t skiving) when this came up in Susie Dent’s origins of words segment. And it was such a good story I had to share it. So, of course you know what a bug is. But in this case the bugs I’m referring to aren’t the insect-y ones, but the defect-y ones – like software or engineering bugs. ‘Bug’ in this sense is probably older than you think (turns out technology has been not working properly for a really long time), and goes all the way back to the 1870s. It probably came from the Middle English word ‘bugge’, meaning a bogeyman or goblin, which is also where we get ‘bugbear’ from (a previous word of the week).
Up until the 1940s, the word ‘bug’ in this context was really only known by by engineers, programmers and the like. That’s until Grace Hopper came along, computer pioneer and all-round amazing human woman. After serving in the American Navy, Hopper joined the Harvard Faculty at the Computation Laboratory where she worked on the Mark II and Mark III computers (used for ballistic calculations and other very complicated computer-y things). There was an error in the Mark II which operators traced to a moth trapped in a relay – an actual real-live bug in the system. It was logged in the log (obviously) book by one William Burke as ‘First actual case of bug being found’ (you can see the actual moth below, which is now in the Smithsonian Museum). Hopper loved to tell the story, popularising the term so much that we all use it today.
