The memory map of the original 8086 computer with its base and extended memory made the original PC rather straightforward, but also posed countless issues for DOS-based applications as they tried to ...

Microsoft has released the 86-DOS 1.00 source code, including its kernel, PC-DOS snapshots and utilities. Includes handwritten notes from 86-DOS creator Tim Paterson with timelines, feature context, ...

Microsoft just released the source code for 86-DOS 1.00, made available as an open-source project on GitHub. The release marks the 45th anniversary of 86-DOS 1.00, created by Tim Paterson, which would ...

PC-DOS 1.00 would lead to Microsoft becoming computing's top dog Microsoft continues to embrace open source. The source code and annotations provide insight into the operating system's earliest days.

Several times in the last couple of decades, Microsoft has released source code for the original MS-DOS operating system that kicked off its decades-long dominance of consumer PCs. This week, the ...

FreeDOS is an open source operating system designed to let you run DOS programs without installing an operating system that Microsoft abandoned decades ago. Unlike some other open source alternatives ...

Editor's take: Microsoft continues to tightly control the release of some of its most important pieces of legacy software. While enthusiasts and programmers are eager to see newer versions of MS-DOS ...