This is a real operating system blast from the past.

Microsoft open-sourced 86-DOS 1.00 source code on GitHub for its 45th anniversary, according to PCWorld, including kernel and PC-DOS development snapshots. This historically significant software, ...

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Tony Smith puns it up, with “Kudos to QDOS”: On 27 July 1981, Microsoft gave the name MS-DOS to the…operating system it acquired on that day from Seattle Computer Products (SCP). … The company had ...

What comes to mind when you look back at the history of Windows? Is it the iconic logos, the ever-changing Start menus, or maybe the introduction of Live Tiles? The story of Microsoft’s flagship ...

In context: Back in 1980, Tim Paterson was creating a new operating system he called QDOS or Quick and Dirty Operating System. The system was later renamed 86-DOS, as it was being designed to run on ...