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This release was written to take advantage of IBM's PS/2 computer range. It added support for high density 3.5" floppy disks, more than one partition on hard disks (allowing use of disks bigger than 32 MB) and code pages. MS-DOS 3.3 released floppy HDD April 1987 5 1/4 inch double-sided: 1,2 MB 3 1/4 inch high density: 1,44 MB FAT ? 32 MB HDD supported

This version provided XMS support, support for partitions on hard disks up to 2 GB and a graphical shell. It also contained a large number of bugs and many programs refused to run on it. Very soon version 4.01 was released with bug fixes. MS-DOS 4.0 released floppy [definition=10,1] HDD November 1988 5 1/4 inch double-sided: 1,2 MB 3 1/4 inch high density: 1,44 MB FAT 16 2 GB [definition=10,1] HDD supported

This was a major upgrade. It allowed parts of DOS to load itself in the high memory area and certain device drivers and TSRs to run in the unused parts of the upper memory area between 640K and 1024K. This version also added support for IBM's new 2.88 MB floppy disks. An improved BASIC interpreter and text editor were included, as was a disk cache, an undelete utility and a hard-disk partition-table backup program. After the problems with MS-DOS 4, it also provided a utility to make programs…

This was a catch-up with Novell's DR-DOS 6. It added a disk-compression utility called DoubleSpace, a basic anti-virus program and a disk defragmenter. It also finally included a MOVE command, an improved backup program, MSBACKUP and multiple boot configurations. Memory management was also improved by the addition of MEMMAKER. A number of older utilities, such as JOIN and RECOVER were removed. The DOS Shell was released separately as Microsoft felt that there were too many disks. Also the…

The original version of MS-DOS. This was a renamed version of QDOS which had been purchased by an upstart company called Microsoft. MS-DOS 1.0 released floppy HDD august 1981 5 1/4 Zoll one-sided: 160 KB none Just before releasing version 1.25 there was a version 1.1. I write the info about that version here and don't create an extra entry for it as it was directly replaced by version 1.25. MS-DOS 1.1 released floppy HDD 1982 5 1/4 inch one-sided: 160 KB none

Extra security was built into DoubleSpace following complaints of data loss. A new disk checker, SCANDISK, was also introduced, as well as improvements to DISKCOPY and SmartDrive. MS-DOS 6.2x released floppy [definition=10,1] HDD 6.20 - 09.1993 6.21 - 03.1994 6.22 - 04.1994 5 1/4 inch double-sided: 1,2 MB 3 1/4 inch very high density: 2,88 MB FAT 16 2 GB [definition=10,1] HDD supported Update 6.21: Following legal action by Stac Electronics, Microsoft released this version which had…

These versions are versions which were shipped with Windows. Version 7.0 was shipped with Windows 95 and supported only 2GB HDD (FAT 16) only the Windows 95 version B supported FAT 32 and HDD above 2GB (DOS 7.1). DOS 8.0 is shipped with Windows ME - the last Windows version which needed DOS as basic OS. MS-DOS 7.x MS-DOS 8.0 released floppy HDD 7.0 - 09.1995 7.1 - 1996 8.0 - 2000 5 1/4 inch double-sided: 1,2 MB 3 1/4 inch very high density: 2,88 MB FAT 16/32 32 GB HDD supported…

After the fall of the Wall in 1989, the two German states were reunified on October 3, 1990