in December 1974, Paul Allen showed Gates a magazine article about the world’s first microcomputer, the Altair 8800. Seeing an opportunity, Gates and Allen called the manufacturer, MITS, in Albuquerque, New Mexico, and told the president they had written a version of the popular computer language BASIC for the Altair. When he said he’d like to see it, Gates and Allen, who actually hadn’t written anything, starting working day and night in Harvard’s computer lab. […]