Microsoft open-sources "the earliest DOS source code discovered to date"
Old 86-DOS source code dates back to the time before Microsoft bought it.
https://arstechnica.com/gadgets/2026/04/microsoft-open-sources-the-earliest-dos-source-code-discovered-to-date/?utm_brand=arstechnica&utm_social-type=owned&utm_source=mastodon&utm_medium=social
Discussion
Replies:
2
@arstechnica you folks should talk with Jim Harding who worked with Tim. He has the original SCP computer that ran those first builds they licensed to Microsoft. Might even have an old floppy or two with source on it.
An IBM PC sitting next to old printed-out 86-DOS source code.
Credit: Rich Cini
