David Bradley, the IBM engineer who invented Ctrl-Alt-Del
Only 26 years later this button-combination is one of the most used in the world. And strangely this combination was chosen because "it's not a key sequence that can be struck by accident" and only as a developer tool.
Nowadays it's the Oh-I-did-something-wrong button to reset your pc. Need it pretty much, so it's the best in the world.
Submitted by: Niels Boom