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.

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

Microsoft finally open sources DOS 1.0 - and it's so much more than the code ...
XDA Developers on MSN

Microsoft open-sources MS-DOS 1.0, offering a rare look at PC history

This is a rare look at the tech giant's first operating system ...