LIST OF MICROSOFT DOS VERSIONS

This is a listing of the versions of the operating systems that were offered by Microsoft as DOS (MS-DOS).

Contents

Versions

References

See also

External links

Versions

★ MS-DOS 1.0 - May 1982 – ''first release for IBM PC compatibles marketed under different brands''

★ MS-DOS 2.0 - March 1983 – ''introduced subdirectories, handle-based file operations, command input/output redirection, and pipes. Microsoft decided to use backslashes as pathname separators rather than slashes as on Unix apparently due to the latter character being used as the switch character in most DOS and CP/M programs. Adds support for hard drives and 360KB floppy disks''

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★ MS-DOS 2.11 - March 1984 – ''non-English language and date format support''

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★ MS-DOS 2.25 - October 1985 – ''better support for Japanese Kanji, and Korean character sets, shipped to western Pacific countries only''

★ MS-DOS 3.0 - August 1984 – ''added support for PC AT: 1.2 MB floppy disks and hard disk partitions of up to 32MB, one primary and one "logical drive" in an "extended partition"''

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★ MS-DOS 3.1 - November 1984 – ''support for Microsoft networking''

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★ MS-DOS 3.2 - January 1986 – ''support for 3.5 inch, 720 kB floppy disk drives''

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★ MS-DOS 3.3 - August 1987 – ''supported multiple logical drives''

★ MS-DOS 4.0 - June 1988 – ''derived from IBM's codebase rather than Microsoft's. generally regarded as an unpopular release. Included a CUI MS-DOS Shell.''

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★ MS-DOS 4.01 - December 1988 – ''bug-fix release''

★ MS-DOS 5.0 - June 1991 – ''improved memory management, QBasic programming environment which supported a full-screen text editor, QBasic programming language, online help, and file transfer facility licensed from Rupp Technology (FastLynx)''

★ MS-DOS 6.0 - March 1993 – ''added DoubleSpace disk compression, disk defragmentation, a better backup utility, anti-virus, undelete, InterLnk/InterSvr file transfer, QBasic supported full-screen help, and other features; the MS-DOS Shell gained a task switcher''

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★ MS-DOS 6.2 - November 1993 – ''added Scandisk, DoubleSpace Undelete, and various bug fixes''

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★ MS-DOS 6.21 - February, 1994 – ''following Stac Electronics lawsuit, removed DoubleSpace disk compression''

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★ MS-DOS 6.22 - June 1994 – ''last official stand-alone version. DoubleSpace replaced with non-infringing but compatible DriveSpace tool'' (COMMAND.COM is 54645 bytes)

★ MS-DOS 7.0 - August 1995 – shipped embedded in Windows 95. ''Included Logical block addressing and Long File Name (LFN) support''. MS-DOS Editor version 2 supported multiple files and editing binary files.

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★ MS-DOS 7.1 - August 1996 – shipped embedded in Windows 95B (OSR2) (and Windows 98 in June 1998). ''Added support for FAT32 file system''

★ MS-DOS 8.0 - September 2000 – shipped embedded in Windows Me. ''Last version of MS-DOS. Removes SYS command, ability to boot to command line and other features''

References

★ Microsoft Corporation. ''MS DOS User's Guide''. Redmond, WA: Microsoft Corporation, 1987.

★ Microsoft Corporation. ''Microsoft MS DOS 6.22: User's Guide For the MS-DOS Operating System''. Redmond, WA: Microsoft Corporation, 1994.

See also

★ MS-DOS

★ List of DOS commands

★ Rexx

★ X86 DOS Comparison

★ E (PC-DOS)

★ List of IBM PC DOS versions

★ List of Microsoft Windows versions

★ List of Microsoft software codenames

External links

★ 16bitos.com detailed lists of PC-DOS and MS-DOS versions