Microsoft finally open sources DOS 1.0 - and it's so much more than the code

Want a blast from the past? Microsoft just open-sourced its very first operating system, offering a rare insight into the ...

Microsoft open-sources 86-DOS 1.00, the ancestor of Windows

The source code for 86-DOS 1.00, the OS that eventually became MS-DOS and Windows, is now available on GitHub.
Hosted on MSN

Windows 1.0 released 40 years ago today - and started Microsoft's road to success

Windows 1.0 officially released to the public 40 years ago today (November 20), and despite its age, still has some common similarities with what users can expect from the operating system today.
GeekWire

Inside the Windows 1.0 reunion: How a scrappy team shipped the product that changed everything, eventually

Members of the Windows 1.0 team at their 40-year reunion this week. L-R, kneeling/sitting: Joe Barello, Ed Mills, Tandy Trower, Mark Cliggett, Steve Ballmer (holding a Windows 1.0 screenshot) and Don ...