Anytime your PC freezes or slows down what do you do? More than likely you press Ctrl-Atl-Del to open Task Manager or restart your machine. The key combination is also used to log into your PC and that process was an mistake according to Bill Gates.
Bill Gates recently spoke at Harvard University fundraiser event and went on a short history lesson. He discussed the infamous control-alt-delete key combination used to login it and to restart PC’s and admitted it was actually designed into the system by mistake. Gates however didn’t take blame for the mistake, he claims the flaw originated from IBM engineer David Bradley.
Check out video footage of Bill explaining control-alt-delte below: