First Versions: Microsoft MS-DOS
Microsoft Re-Open Sourced MS-DOS 1.25 and 2.0 Codes On GitHub
MS-DOS and Windows command line assign command
PC-DOS:2.0/disk01/COMP.COM | Beta Changes Wiki | Fandom
Windows 2.0 - James's Computer Central
MS-DOS Operating System
Software / HBASIC // retrocmp / retro computing
Windows 2.0 - James's Computer Central
Microsoft has released MS-DOS 1.25 and 2.0 sources as free / open source software
Guide:Installing DOS 2.x 3.x · joncampbell123/dosbox-x Wiki · GitHub
MS-DOS - Wikipedia
Explore Disk Operating System (DOS) Versions (30-60 mins) – Atari Projects
Guide:Installing DOS 2.x 3.x · joncampbell123/dosbox-x Wiki · GitHub
Your IBM PC: A guide to the IBM PC (DOS 2.0) and XT: 9780881341201: Amazon.com: Books
FreeDOS | The FreeDOS Project
Is Windows 2.0 is success or flop? - BetaArchive
TMNT Teenage Mutant Ninja Turtles Version 2.0 Disc 1 only L84002 MS DOS floppy | eBay
ALL VERSIONS OF MS-DOS (1.0-8.0) - YouTube
MS-DOS Versions Information
FreeDOS | The FreeDOS Project
Microsoft releases historic MS-DOS and Word source code to the public - ExtremeTech
Introduction to the Microcomputer and its Applications -- PC-DOS, Wordstar, Lotus 1-2-3, and dBase -- includes Student Data Diskette 5.25 requires 256K and DOS 2.0 or higher | Chao Chien
Microsoft MS-DOS early source code - CHM
MS-DOS Ver 3.21 + supplemental disk / GW-BASIC Ver 3.20 Rev 2.0C : Microsoft Corp. : Free Download, Borrow, and Streaming : Internet Archive
