Download the source code of MS-DOS and Word for Windows!
For the first time, Microsoft has made the source code of MS-DOS and Word for Windows 1.1a available to public. You can download the source codes freely via Computer History Museum. According to the press release from Computer History Museum, the original source of the two historical programs which was developed in 1980’s for IBM personal computers is now available for public to download.
Here’s what Roy Levin from Microsoft Research says about the release:
“In 1980, IBM approached Microsoft to work on a project code-named “Chess.” What followed was a significant milestone in the history of the personal computer. Microsoft, at the time, provided the BASIC language interpreter for IBM. However, they had other plans and asked Microsoft to create an operating system. Without their own on hand, Microsoft licensed an operating system from Seattle Computer Products which would become the foundation for PC-DOS and MS-DOS…”