Published on: 24th Nov 2011    |   Last Updated on: 24th Nov 2011

MS-DOS History : Timeline :

Microsoft bought QDOS rights from Seattle Computer Products(SCP) for $25,000 on 27th, 1981.

Year Month DOS Family Release Description
1981 April, 11 PC-DOS 1.0 ---
1982 August MS-DOS 1.25 ---
1983 March MS-DOS 2.0 ---
1984 September MS-DOS 3.0 Microsoft introduces MS-DOS 3.0 for the IBM PC AT.It supports for larger hard disk drives.
1984 November MS-DOS 3.1 (Network) It supports for Microsoft Networks.
1986 April MS-DOS 3.2 ---
1987 April MS-DOS 3.3 ---
1988 July MS-DOS 4.0 ---
1988 Nov MS-DOS 4.01 ---
1991 June MS-DOS 5.0 It includes a full-screen editor. A number of bugs required reissue.
1993 August MS-DOS 6.0 Online help through QBASIC. Disk compression and antivirus included.
1993 November MS-DOS 6.2 ---
1994 March MS-DOS 6.21 ---
1994 April MS-DOS 6.22 New DRVSPACE compression.



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