Microsoft open-sources "the earliest DOS source code discovered to date"

hckrnws

36m

by DamnInteresting

gnabgib
032m
Discussion, on the source, at the time (79 points, 24 days ago, 19 comments) https://news.ycombinator.com/item?id=47957494
Or on the GitHub clone (162 points, 15 comments) https://news.ycombinator.com/item?id=47946813
dang
034m
Recent and related:
Microsoft open sources DOS 1.00 on 45th anniversary - https://news.ycombinator.com/item?id=47957494 - April 2026 (19 comments)