Want to build on Bill Gates? Microsoft open-sourced the original code written by the company founder - now it's over to you

Microsoft open-sourced Bill Gates’ 1976 6502 BASIC interpreter, showcasing early programming features and its historical role ...
Windows Report

Microsoft’s 6502 BASIC Goes Open Source

Microsoft has officially open-sourced its 6502 BASIC. The version published today is BASIC M6502 8K Version 1.1.
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Bill Gates shares his original Altair BASIC source code for Microsoft's 50th anniversary — "The coolest code I've ever written"

This week, Microsoft is celebrating its 50th anniversary (officially, it'll be on April 4). We've had a lot of fun at Windows Central recapping some of the best and worst moments alongside missed ...
heise online

"My coolest code": Bill Gates publishes source code from Altair Basic

Microsoft is celebrating its 50th birthday these days, and it all started with the Altair Basic program. Bill Gates has now published its source code. 50 years after the founding of Microsoft, Bill ...