DOS (Disk Operating System) Versions

DOS (Disk Operating System) Versions:

Date	Version
1981 Aug.	MS-DOS 1.0, formerly QDOS/86-DOS, can use at maximum 128 kbyte RAM, FAT established
1981 Juni	MS-DOS 1.10,
1982 Aug.	MS-DOS 1.25, support for double-density floppy disks
1983 March	MS-DOS 2.0, support for IBM 10 mbyte harddisk, directorys and DD 5.25" floppy disk drives with up to 360 kbyte
1983 Dec.	MS-DOS 2.11, extended character sets
1984 Aug.	MS-DOS 3.0, support for high density floppy disk drives with 1.2 mbyte and harddisk devices with 32 mbyte capacity
1984	MS-DOS 3.1, first tiem with network support
1985	MS-DOS 3.2
1985	MS-DOS 3.21
1987 April	MS-DOS 3.3, extended for IBM's PS/2 computer, supports now bigger 3.5" harddisk drives and floppy disk drives, multiple partitions, character sets for different languages
1988 Juli	MS-DOS 4.0, XMS support, partitions with up to 2 gbyte, graphical shell, bug fixes
1988 Nov.	MS-DOS 4.01, supports multiple partitions bigger than 32 mbyte, bug fixes
1991 June	MS-DOS 5.0, Major Release
1992	MS-DOS 5.0a, bug fixes for Undelete and Chkdsk
1993 Aug.	MS-DOS 6.0, Competition to Novell's DR-DOS 6, DoubleSpace, Anti-Virus program, Defrag, Move command, improved MSBACKUP and several boot configurations, memory optimizer MEMMAKER, DOS Shell is delivered separately on floppy disks
1993 Nov.	MS-DOS 6.2, DoubleSpace becomes incompatible to the previous version, Scandisk, improved of DISKCOPY and SmartDrive
1994 March	MS-DOS 6.21, because of law conflict with Stac Electronics DoubleSpace is removed from MS DOS
1994 May	MS-DOS 6.22, Microsoft licences double disk of VertiSoft Systems and designates it in DriveSpace, last official standalone version
1995 Aug.	MS-DOS 7.0, MS-DOS component for Windows 95, LFS support through VFAT, more DOS programs are delivered on the Setup CD-ROM in the "oldmsdos" directory
1996 Aug.	MS-DOS 7.10, MS-DOS component for Windows 95 B and higher, supports the first time FAT 32 harddisks
2000	MS-DOS 8.0, MS-DOS component for Windows ME, last MS-DOS version