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Microsoft founder Bill Gates reflects upon a 50-year-old computer code that reshaped technology

By MICHAEL LIEDTKE - Apr 03, 2025, 07:00 PM ET
Last Updated - Apr 03, 2025, 07:00 PM EDT
CORRECTION Microsoft Anniversary Catalytic Code
CORRECTS THAT PHOTO WAS TAKEN IN RECENT TIMES - This recent photo provided by Gates Ventures shows Microsoft founder Bill Gates holding a printout of the computer coding that launched the software maker in April 1975. (Ian Allen/Gates Ventures via AP)

Even as he grows older, Microsoft founder Bill Gates still fondly remembers the catalytic computer code he wrote 50 years ago that opened up a new frontier in technology

Even as he grows older, Microsoft founder Bill Gates still fondly remembers the catalytic computer code he wrote 50 years ago that opened up a new frontier in technology.

Although the code that Gates printed out on a teletype machine may look crude compared to what's powering today's artificial intelligence platforms, it played a critical role in creating Microsoft in April 1975 — a golden anniversary that the Redmond, Washington, company will celebrate on Friday.

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Gates, 69, set the stage for that jubilee with a blog post reminiscing on how he and his old high school friend — the late Paul Allen — scrambled to create the world's first “software factory” after reading an article in the January 1975 issue of Popular Electronics magazine about the Altair 8800, a minicomputer that would be powered by a tiny chip made by the then-obscure technology company, Intel.

The article inspired Gates, who was just a freshman at Harvard University, and Allen to call Altair's maker, Micro Instrumentation and Telemetry Systems, and promise the company's CEO Ed Roberts they had developed software that would enable consumers to control the hardware. There was just one hitch: Gates and Allen hadn't yet come up with the code they promised Roberts.

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