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MS-DOS 1.00

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This was Microsoft's first Operating System, and it also became the first widely used operating system for the IBM PC and its clones. MS-DOS 1.00 was actually a renamed version of QDOS, which Microsoft bought from a Seattle company, appropriately named Seattle Computer Products, in July 1981. MS-DOS 1.00 shipped with the new IBM Personal Computer on the 12th of August 1981.


Microsoft Operating System Versions
Microsoft Operating System Versions:

MS-DOS: QDOS | 1.0 | 2.0 | 2.1 | 2.11 | 3.0 | 3.1 | 3.2 | 3.21 | 3.3 | 3.3A | 3.31 | 4.0 | 4.01 | 4.01A | 5.0 | 5.0A | 6.0 | 6.2 | 6.21 | 6.22 | 7.0 | 7.1 | 8.0

Windows 1.x: 1.0 | 1.01 | 1.02 | 1.03 | 1.04

Windows 2.x: 2.0 | 2.01 | 2.1 | 2.2

Windows 3.x: 3.0 | 3.0A | 3.1 | 3.11 | 3.2

Windows for Workgroups 3.x: 3.1 | 3.11

Windows 9x: 95 | 98 | ME

Windows NT: 3.1 | 3.5 | 3.51 | 4.0 | 2000 | XP | 2003

Future Windows NT: Vista | Longhorn Server | Blackcomb Server

Windows CE: 1.0 | 1.1 | 2.0 | 2.1 | 2.11 | 2.12 | 3.0 | 4.0 | 4.1 | 4.2 | 5.0

Windows Embedded: NT | XP

Windows Mobile: 2003 | 5.0

Previous Windows Codenames: Janus | Snowball | Kato | Daytona | Chicago | Memphis | Millennium | Cairo | Odyssey | Neptune | Whistler | Longhorn | Blackcomb

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