Microsoft and IBM have open-sourced on git the 1988 operating system MS-DOS 4.0 under the MIT License. In addition to the source code for MS-DOS 4, the public git repository contains unreleased beta M ...

MS-DOS 4.0 has now become part of this shared history. Ten years after releasing the source code of MS-DOS 1.25 and 2.0, Microsoft is making yet another contribution to the world of open-source ...

Microsoft already released MS-DOS 1.25 and 2.0 in 2014, in cooperation with The Computer History Museum. Microsoft open-sources infamously weird, RAM-hungry MS-DOS 4.00 release [ Ars Technica ] ...

Microsoft has announced that it is open sourcing MS-DOS 4.0, in collaboration with IBM, who developed portions of the code.It will be available under the MIT license. This came about because an ...

That’s part of the reason that both companies have released the source code for certain versions, including MS-DOS 1.25, 2.11, and as of now, 4.0.

A decade after releasing the source code for MS-DOS 1.1 and MS-DOS 2.0, Microsoft has open sourced a (slightly) more recent operating system: MS-DOS 4.0. First released in 1988, you can now ...

MS-DOS is 30 years old today. 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.

While the availability of MS-DOS 4.00's code is undoubtedly a boon for software historians examining the lineage from MS-DOS to Windows, the GitHubbing approach may have needlessly undermined ...

Although some versions of MS-DOS 4.0, MT-DOS, OS/2, etc. are available on the Internet, the ones found in Hyde's collection were unreleased and have never been made public.

This release is also interesting because it doesn’t just include include MS-DOS 4.0, which was widely available in the late 1980s, but also code and documentation for an early version of “a ...

MS-DOS 3.0 followed in 1984 (alongside the IBM PC/AT), and MS-DOS 4.0 with a mouse-powered, menu-driven interface arrived in 1989. It's around this point that IBM's PC operating system, ...