It's "the coolest code I've ever written," the Microsoft co-founder says.

Gates was clearly a mathematically precocious youth who loved to code, could hyperfocus, had crazy energy, and was intent on being the best.

Bill and I were using the same computing tech - the Altair 8800 and DEC's PDP-10 - as BASIC became a gateway for generations of developers. Where were you all those decades ago?

Even as he grows older, Microsoft founder Bill Gates still fondly remembers the catalytic computer code he wrote 50 years ago ...

Bill Gates unveils Microsoft's original source code celebrating its 50th anniversary, highlighting the BASIC code he and Paul Allen developed for the Altair 8800. This code, Gates considers the ...

If you want to see the original source code that started Microsoft, Bill Gates is now ... software would let people program the Altair. "There was just one problem," Gates wrote.

Even as he grows older, Microsoft founder Bill Gates still ... working on the program with little sleep, Gates finished the code that became the basis for the Altair's first operating system.