The MS-DOS 1.25 code dates from around May 9th 1983, and is comprised of just 7 source files, including the original MS-DOS Command-Line shell - COMMAND.ASM!

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. [Link: Microsoft open-sources infamously weird, RAM-hungry MS-DOS 4.00 release ...

Microsoft actually already released the source code to MS-DOS 1.25 and 2.0 once before, through the Computer History Museum in March 2014. It contained a brief history how MS-DOS came to be, along ...

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.

That was mainly because MS-DOS 4.0 used an enormous 92KB of RAM. Today, you wouldn't notice that much RAM being used on your watch. But back in the day, when 640K was what you got on a high-end PC ...

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 ...

This isn't the first time Microsoft has open-sourced MS-DOS, as its GitHub repository already has versions 1.25 and 2.0, which were originally shared at the Computer History Museum back in 2014.

If MS was actually trying to be forthcomming instead of doing a hollow Publicity Stunt, they’d open-source MS-DOS 6.22 or 7 instead of 1.25 and 2. love_guru says: 10/01/2018 at 8:41 PM.

Microsoft has today announced the availability of the MS-DOS source code via GitHub, in the form of code for MS-DOS 1.25 and MS-DOS 2.0.

The MS-DOS 4.00 code is available on Microsoft's MS-DOS GitHub page along with versions 1.25 and 2.0, which Microsoft open-sourced in cooperation with the Computer History Museum back in 2014.

One good thing that PC/MS-DOS did was make those separate programs with separate names. Funny what over a decade of Moore’s Law meant for available memory. Sorry about my ASD kicking in.