In the 1970s, Gates and his Microsoft co-founder, Paul Allen, used a computer in Harvard's lab to compose what he calls the 'coolest code I've written.' It's now public for the first time.

And the fun isn't over yet! To commemorate the special occasion, Microsoft's co-founder Bill Gates has joined the fray and shared the source code that shaped the company's origins — Altair BASIC.

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 ...