This repo contains the original source-code and compiled binaries for MS-DOS 1.25 and MS-DOS 2.0.
These are the same files originally shared at the Computer History Museum on March 25th 2014 and are being (re)published in this repo to make them easier to find, reference-to in external writing and works, and to allow exploration and experimentation for those interested in early PC Operating Systems.
At first I just thought it was simply just another mirror of the original source that had been released that had some incredible restrictions.
To access this material, you must agree to the terms of the license displayed here, which permits only non-commercial use and does not give you the right to license it to third parties by posting copies elsewhere on the web.
However the restrictions have been lifted, and MS-DOS 1.25 & 2.0 are now available under a MIT license.
So this is actually very awesome!
You can download it here: https://github.com/Microsoft/MS-DOS.