MS-DOS 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.

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).

Product type
OS
Release date
1983
Minimum CPU
8088
User interface
Text
Platform
DOS

Downloads

Download Name Version Language CPU File type File size
Microsoft MS-DOS 2.00 (Eagle Computer OEM r1.01) [Eagle Spirit] (5.25-360k) 2.00 (Eagle Computer OEM r1.01)[Eagle Sp English x86 Archive 141.92KB
Microsoft MS-DOS 2.00 [Olivetti M20 OEM] (5.25-360k) 2.00 [Olivetti M20 OEM] English x86 5¼ Floppy 94.7KB
Microsoft MS-DOS 2.00 [SCP OEM] [SCP Tarbell S-100] (8-inch SSSD) 2.00 [SCP OEM] [SCP Tarbell S-100] English x86 Archive 281.51KB
Microsoft MS-DOS 2.00 [Seequa Chameleon] (5.25-360k) 2.00 [Seequa Chameleon] English x86 5¼ Floppy 70.79KB
Microsoft MS-DOS 2.01 [DEC Rainbow] (5.25-SSQD 400k) 2.01 [DEC Rainbow] English x86 5¼ Floppy 118.43KB
Microsoft MS-DOS 2.05 [DEC Rainbow OEM] (5.25-SSQD 400k) 2.05 [DEC Rainbow OEM] English x86 5¼ Floppy 285.45KB
Microsoft MS-DOS 2.1 [Eagle Computer OEM] (5.25-360k) 2.1 [Eagle Computer OEM] English x86 5¼ Floppy 130.02KB
Microsoft MS-DOS 2.10 [Wang Professional Computer OEM r1.22] (5.25-360k) 2.10 [Wang Professional Computer OEM r1. English x86 5¼ Floppy 466.99KB
Microsoft MS-DOS 2.10a [Wang Professional Computer OEM r2.01] (5.25-360k) 2.10a [Wang Professional Computer OEM r2 English x86 5¼ Floppy 1.05MB
Microsoft MS-DOS 2.11 Manuals [TI Professional Computer OEM r2.13] 2.11 [TI Professional Computer OEM r2.13 English x86 Archive 10.09MB
Microsoft MS-DOS 2.11 [AT&T OEM r2.0] (5.25-360k) 2.11 [AT&T OEM r2.0] English x86 5¼ Floppy 183.04KB
Microsoft MS-DOS 2.11 [AT&T OEM] (5.25-360k) 2.11 [AT&T OEM] English x86 5¼ Floppy 245.7KB
Microsoft MS-DOS 2.11 [ATT OEM r1.0] (5.25-360k) 2.11 [ATT OEM r1.0] English x86 5¼ Floppy 282.96KB
Microsoft MS-DOS 2.11 [Bull Micral OEM] (5.25-360k) 2.11 [Bull Micral OEM] English x86 5¼ Floppy 165.35KB
Microsoft MS-DOS 2.11 [Commodore OEM] [German] (5.25-360k) 2.11 [Commodore OEM] German x86 5¼ Floppy 142.88KB
Microsoft MS-DOS 2.11 [DEC Rainbow] (5.25-SSQD 400k) 2.11 [DEC Rainbow] English x86 5¼ Floppy 162.92KB
Microsoft MS-DOS 2.11 [Data General OEM] (3.5-720k) 2.11 [Data General OEM] English x86 3½ Floppy 196.16KB
Microsoft MS-DOS 2.11 [Epson OEM] (5.25-360k) 2.11 [Epson OEM] English x86 5¼ Floppy 128.08KB
Microsoft MS-DOS 2.11 [Kaypro 2000 OEM] (3.5-720k) 2.11 [Kaypro 2000 OEM] English x86 3½ Floppy 765.4KB
Microsoft MS-DOS 2.11 [Leading Edge OEM] (5.25-360k) 2.11 (Leading Edge OEM) English x86 5¼ Floppy 149.44KB
Microsoft MS-DOS 2.11 [Leading Edge OEM] (5.25-360k) 2.11 [Leading Edge OEM] English x86 5¼ Floppy 2.53MB
Microsoft MS-DOS 2.11 [Morrow Pivot r2.11B] (5.25-360k) 2.11 [Morrow Pivot r2.11B] English x86 5¼ Floppy 155.3KB
Microsoft MS-DOS 2.11 [NCR Decision Mate V] (5.25-360k) 2.11 [NCR Decision Mate V] English x86 5¼ Floppy 109.38KB
Microsoft MS-DOS 2.11 [NCR OEM] (5.25-360k) 2.11 [NCR OEM] English x86 5¼ Floppy 146.1KB
Microsoft MS-DOS 2.11 [NEC APC r01] (8-inch DSDD) 2.11 [NEC APC r01] English x86 Archive 15.23MB
Microsoft MS-DOS 2.11 [Olivetti OEM] (5.25-360k) 2.11 [Olivetti OEM] English x86 5¼ Floppy 470.53KB
Microsoft MS-DOS 2.11 [Osborne 3 OEM] (5.25-360k) 2.11 [Osborne 3 OEM] English x86 5¼ Floppy 74.11KB
Microsoft MS-DOS 2.11 [Otrona Attache] (5.25-360k) 2.11 [Otrona Attache] English x86 5¼ Floppy 160.47KB
Microsoft MS-DOS 2.11 [Sanyo MBC-550 OEM r1.00] (5.25-360k) 2.11 [Sanyo MBC-550 OEM r1.00] English x86 5¼ Floppy 92.25KB
Microsoft MS-DOS 2.11 [TI Professional Computer OEM r2.11] (5.25-360k) 2.11 [TI Professional Computer OEM r2.11 English x86 5¼ Floppy 406.61KB
Microsoft MS-DOS 2.11 [TI Professional Computer OEM r2.13] (5.25-360k) 2.11 [TI Professional Computer OEM r2.13 English x86 5¼ Floppy 292.27KB
Microsoft MS-DOS 2.11 [Tandy 1000 OEM] (02.11.00) (5.25-360k) 2.11 [Tandy 1000 OEM] (02.11.00) English x86 5¼ Floppy 148.28KB
Microsoft MS-DOS 2.11 [Tandy 1000 OEM] (02.11.22) (5.25-360k) 2.11 [Tandy 1000 OEM] (02.11.22) English x86 5¼ Floppy 157.42KB
Microsoft MS-DOS 2.11 [Tandy 1000 OEM] (02.11.24) (5.25-360k) 2.11 [Tandy 1000 OEM] (02.11.24) English x86 5¼ Floppy 2.45MB
Microsoft MS-DOS 2.11 [Tandy 2000 OEM] (02.01.00) (5.25-DSQD 720k) 2.11 [Tandy 2000 OEM] (02.01.00) English x86 5¼ Floppy 401.54KB
Microsoft MS-DOS 2.11 [Tandy 2000 OEM] (02.02.00) (5.25-DSQD 720k) 2.11 [Tandy 2000 OEM] (02.02.00) English x86 5¼ Floppy 206.07KB
Microsoft MS-DOS 2.11 [Tiki-100 8-16 rev. C] (5.25-360k) 2.11 [Tiki-100 8-16 rev. C] English x86 5¼ Floppy 74.55KB
Microsoft MS-DOS 2.11 [Toshiba OEM R2A] (5.25-360k) 2.11 [Toshiba OEM R2A] English x86 5¼ Floppy 93KB
Microsoft MS-DOS 2.11 [Wyse 1100 OEM] (5.25-360k) 2.11 [Wyse 1100 OEM] English x86 5¼ Floppy 115.89KB
Microsoft MS-DOS 2.11 and 1.25 [Zenith Z100 PC] (5.25-320k) 2.11 and 1.25 [Zenith Z100 PC] English x86 5¼ Floppy 612.24KB
Microsoft MS-DOS 2.11 and 1.25 [Zenith Z100 PC] Manuals 2.11 and 1.25 [Zenith Z100 PC] English x86 Archive 150.16MB
Microsoft MS-DOS 2.12 [Compaq OEM] (5.25-360k) 2.12 [Compaq OEM] English x86 5¼ Floppy 163.7KB
Microsoft MS-DOS 2.13 (Zenith OEM) [Z-100] (5.25-360k) 2.13 (Zenith OEM) [Z-100] English x86 5¼ Floppy 279.96KB
Microsoft MS-DOS 2.2 [TeleVideo Systems OEM] (5.25) (Not bootable - Needs redump) 2.2 [TeleVideo Systems OEM] English x86 5¼ Floppy 137.51KB

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