MS-DOS2.X 2.X

Originally 86-DOS, written by Tim Paterson of Seattle Computer Products, DOS was a rough clone of CP/M for 8086 based hardware. Microsoft purchased it and licensed it to IBM for use with Microsoft's IBM PC language products. In 1982, Microsoft began licensing DOS to other OEMs that ported it to their custom x86 hardware and IBM PC clones.

For IBM-specific releases, please see the IBM PC-DOS product page.

Microsoft DOS 2.11 [Bull Micral OEM] (5.25).7z,0.16 MB
Microsoft DOS 2.11 [Kaypro 2000 OEM] (3.5).7z,0.73 MB
Microsoft DOS 2.11 [Wang DOS 2.10] (5.25).7z,0.45 MB
Microsoft DOS 2.12 [Compaq OEM] (5.25).7z,0.16 MB
Microsoft DOS 2.2 [TeleVideo Systems OEM] (5.25).7z,0.13 MB
Microsoft MS-DOS 2.00 (Eagle Computer OEM r1.01)[Eagle Spirit].7z,0.14 MB
Microsoft MS-DOS 2.00 [English].7z,0.15 MB
Microsoft MS-DOS 2.00 [Olivetti M20 OEM](5.25).7z,0.09 MB
Microsoft MS-DOS 2.00 [SCP OEM] (8 inch) [SCP Tarbell S-100].7z,0.27 MB
Microsoft MS-DOS 2.00 [Seequa Chameleon] (5.25-360k).7z,0.07 MB
Microsoft MS-DOS 2.00 [Xerox 820 16-8] (5.25-360k).7z,61.71 MB
Microsoft MS-DOS 2.01.7z,0.11 MB
Microsoft MS-DOS 2.01a (1985) [English].7z,0.29 MB
Microsoft MS-DOS 2.01[DEC Rainbow](400k SSDD 5.25).7z,0.11 MB
Microsoft MS-DOS 2.05.7z,0.14 MB
Microsoft MS-DOS 2.1 (Eagle Computer OEM) (5.25).7z,0.12 MB
Microsoft MS-DOS 2.10a [Wang Professional Computer OEM r2.01] (5.25-360k).7z,1 MB
Microsoft MS-DOS 2.11 (Leading Edge OEM) (5.25).7z,0.14 MB
Microsoft MS-DOS 2.11 and 1.25 [Zenith Z100 PC] (5.25-320k).7z,0.58 MB
Microsoft MS-DOS 2.11 and 1.25 [Zenith Z100 PC] Manuals.7z,143.2 MB
Microsoft MS-DOS 2.11 [ATT 6300 OEM r1.0] (5.25-360k).7z,0.27 MB
Microsoft MS-DOS 2.11 [ATT 6300 OEM r2.0] (5.25-360k).7z,0.23 MB
Microsoft MS-DOS 2.11 [Columbia Data Products OEM] (5.25-360K).7z,6.61 MB
Microsoft MS-DOS 2.11 [Compaq OEM] (5.25-360k).7z,0.15 MB
Microsoft MS-DOS 2.11 [Corona Data Systems OEM] (5.25-320k).7z,0.57 MB
Microsoft MS-DOS 2.11 [Data General OEM](3.5).7z,0.19 MB
Microsoft MS-DOS 2.11 [DATAVUE OEM] (3.5-720k).7z,10.32 MB
Microsoft MS-DOS 2.11 [DEC Rainbow](400k SSDD 5.25).7z,0.16 MB
Microsoft MS-DOS 2.11 [English].7z,0.22 MB
Microsoft MS-DOS 2.11 [Epson OEM](5.25).7z,0.12 MB
Microsoft MS-DOS 2.11 [Hyperion] (5.25-360k).7z,0.16 MB
Microsoft MS-DOS 2.11 [ITT XTRA OEM r2.00] (5.25-360k).7z,0.14 MB
Microsoft MS-DOS 2.11 [Leading Edge OEM] (5.25-360k).7z,2.42 MB
Microsoft MS-DOS 2.11 [Marrow Pivot II r1.07] (5.25-360k).7z,0.16 MB
Microsoft MS-DOS 2.11 [Morrow Pivot r2.11B] (5.25-360k).7z,0.15 MB
Microsoft MS-DOS 2.11 [NCR OEM](5.25).7z,0.14 MB
Microsoft MS-DOS 2.11 [NEC APC r01] (8-inch).7z,14.52 MB
Microsoft MS-DOS 2.11 [Olivetti M24 OEM r1.01] [French] (5.25-360k).7z,233.29 MB
Microsoft MS-DOS 2.11 [Olivetti M24 OEM] System Manuals.7z,152.05 MB
Microsoft MS-DOS 2.11 [Olivetti OEM](5.25).7z,0.45 MB
Microsoft MS-DOS 2.11 [Olympia People] [German] (5.25-DSQD).7z,0.18 MB
Microsoft MS-DOS 2.11 [Osborne 3 OEM](5.25).7z,0.07 MB
Microsoft MS-DOS 2.11 [Otrona Attache].7z,0.15 MB
Microsoft MS-DOS 2.11 [Sanyo MBC-550 OEM r1.00] (5.25-360k).7z,0.09 MB
Microsoft MS-DOS 2.11 [Sperry HT OEM] (5.25-360k).7z,0.68 MB
Microsoft MS-DOS 2.11 [Tandy 1000 OEM] (02.11.00) (5.25-360k).7z,0.14 MB
Microsoft MS-DOS 2.11 [Tandy 1000 OEM] (02.11.22) (5.25-360k).7z,0.15 MB
Microsoft MS-DOS 2.11 [Tandy 1000 OEM] (02.11.24) (5.25-360k).7z,2.34 MB
Microsoft MS-DOS 2.11 [TI Professional Computer OEM r2.11](5.25).7z,0.39 MB
Microsoft MS-DOS 2.11 [TI Professional Computer OEM r2.13] (5.25-360k).7z,1.36 MB
Microsoft MS-DOS 2.11 [TI Professional Computer OEM r2.13].Manuals.7z,9.62 MB
Microsoft MS-DOS 2.11 [Tiki-100 8-16 rev. C] (5.25).7z,0.07 MB
Microsoft MS-DOS 2.11 [Toshiba OEM R2A](5.25).7z,0.09 MB
Microsoft MS-DOS 2.11 [Toshiba T1100 Plus OEM] (3.5-720k) (alt).7z,0.19 MB
Microsoft MS-DOS 2.11 [Toshiba T1100 Plus OEM] (3.5-720k).7z,1.61 MB
Microsoft MS-DOS 2.11 [Visual Commuter OEM r1.9] (1985) (5.25-360k).7z,180.96 MB
Microsoft MS-DOS 2.11 [Wyse 1100 OEM](5.25).7z,0.11 MB
Microsoft MS-DOS 2.11D.7z,0.18 MB
Microsoft MS-DOS 2.12.7z,0.18 MB
Microsoft MS-DOS 2.13 (Zenith OEM) [Z-100].7z,0.27 MB
MS DOS 2.11 [Commodore OEM] [German] (5.25).7z,0.14 MB
MS-DOS 2.05 - DEC Rainbow OEM (400k SSDD 5.25).7z,0.27 MB
MS-DOS 2.11 [NCR Decision Mate V] (5.25-350k).7z,0.1 MB
Release notes

DOS 2.x adds support for subdirectories and larger (as in 10 MB) disks.
Installation instructions

Important: Some of these OEM versions will only run, or run properly on the specific computers they were designed for. Similarly, those computers will normally only run their special OEM version.

The following are known not to boot, by design, on IBM PC's or 100% compatibles: DEC Rainbow, Wang Professional Computer, TI Professional Computer, SCP (Seattle Computer Products), Otrona Attache, Zenith Z-100 (But Z-100 PC is OK), NEC APC, and Tiki-100 8-16 rev. C. (Possibly a couple others).