Earlier this month, I spent a day working in the throwback world of DOS. More specifically, it was FreeDOS version 1.1, the open source version of the long-defunct Microsoft MS-DOS operating system.

FreeDOS is an open source operating system that allows you to run MS-DOS applications even though Microsoft stopped developing and supporting MS-DOS more than two decades ago. While FreeDOS has been ...

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 ...

Do you still long to run WordPerfect 5.1, Lotus 1-2-3 4, or Doom on DOS? Well, if you do, there's a new way to revisit the PC world of the 1980s: The newly open-sourced PC-MOS/386 v501. PC-MOS, for ...

Breakthroughs, discoveries, and DIY tips sent six days a week. Terms of Service and Privacy Policy. Before Windows, there was MS-DOS—that’s the Microsoft Disk ...

It's no joke. Microsoft and IBM have joined forces to open-source the 1988 operating system MS-DOS 4.0 under the MIT License. Why? Well, why not? That got Hanselman and Wilcox digging into the ...

For more than 50 years, Microsoft Corporation (MSFT) has been one of the world’s most influential companies, now a titan in ...

It’s been decades since Microsoft stopped developing MS-DOS, but there are thousands of old DOS applications that aren’t designed to run on newer operating systems like Windows 10. Enter FreeDOS, a ...

30 years ago today, Microsoft bought the rights to the Quick and Dirty OS, re-branded it as MS-DOS, struck a deal with IBM, and made history. Share on Facebook (opens in a new window) Share on X ...

You will find the complete list of MS-DOS commands below. However, MS-DOS commands are not the same as Windows command line commands or Powershell commands. MS-DOS (Microsoft Disk Operating System) is ...

Editor’s note: After this article was published, Microsoft issued a statement clarifying that cmd.exe will not be going away after all. Read Steven J. Vaughan-Nichols’ follow-up column. My very first ...

The SA health department has been using the Chiron patients record system, which was developed in the 1980s, in several of its rural units. At that time, the operating system predominantly used on ...