Steve Wozniak designed the Apple I single-handedly; Jobs convinced him to sell it instead of giving the schematics away free

Steve Jobs

Steve Jobs was fired from Apple in 1985

Universal Turing machine

Alan Turing introduced the Turing machine in 1936

Bill Gates and Paul Allen wrote BASIC for the Altair 8800 in eight weeks, founding Microsoft on the strength of one demo

Bill Gates and Paul Allen wrote BASIC for Altair 8800 in eight weeks, founding Microsoft with one demo

Keyboard layout

QWERTY was designed to prevent typewriter jamming

John von Neumann

John von Neumann pioneered the stored-program architecture used in nearly every computer built since

Jeff Bezos

Jeff Bezos founded Amazon in 1994