Windows 11's kernel32.dll and ntoskrnl.exe still use DOS-era 8.3 names. Microsoft veteran Raymond Chen explains why renaming them is risky.

Windows 11 still won't let you name a file CON or NUL. Raymond Chen traces it to DOS 1.0, and our 26H2 test found NUL.txt now ...

What is MS-DOS (Microsoft Disk Operating System)? MS-DOS stands for Microsoft Disk Operating System and is also known as Microsoft DOS. MS-DOS was the Microsoft-marketed version of the first operating ...

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In theory, you could even create a 1,023MB partition on a 1GB hard drive and leave the remaining megabyte unallocated. This ...

Who doesn’t remember PC games such as Maniac Mansion, the King’s Quest series and the dubious adventures of Leisure Suit Larry or software such as Microsoft Works and Lotus Smart Suite? These titles ...

Microsoft has open-sourced another bit of computing history this week: The company teamed up with IBM to release the source code of 1988’s MS-DOS 4.00, a version better known for its unpopularity, ...

I had MS DOS 6.22 running fine in a multi-boot set up with Win98, WinXP Home, and Red Hat 7.3 Linux. Somehow, after upgrading 98 to 98SE I lost the choice at Win98 boot to chose the previous OS. The ...

Editor's take: Back in the DOS days, real PC users wrote their textual tomes in the official MS-DOS Editor – I certainly did. These days, developers offer a confusing array of text editors, so ...