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Microsoft just made its own code from the 70s open source, and you can download it right now

Microsoft just open-sourced 6502 BASIC (BASIC M6502 8K VER 1.1) from 1978. The code powered the Commodore PET, VIC-20, and C64, and underlies Applesoft BASIC on Apple II. Download it on GitHub to run, ...
Ars Technica

Microsoft open-sources “the earliest DOS source code discovered to date”

Several times in the last couple of decades, Microsoft has released source code for the original MS-DOS operating system that kicked off its decades-long dominance of consumer PCs. This week, the ...
SiliconANGLE

Collaboration at the cloud’s edge: How Microsoft and Red Hat are redefining open-source integration

Technology alliances aren’t new in enterprise technology. However, Microsoft Corp. and Red Hat Inc. have forged an unlikely partnership set to reshape the landscape of cloud computing and open-source ...
TechCrunch

Microsoft open sources a command-line text editor and more at Build

At its Build 2025 conference, Microsoft open sourced a number of apps and tools, including a new command-line text editor for Windows called Edit. Open source software may not earn the company direct ...