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==Description==
DOS is also a subsystem of OS/2, running in cohabitation with version 1.x of OS/2 and as a task in version 2 and later. Furthermore DOS is also used as a collective name for a variety of operating systems that offer compatibility with the PC DOS system to varying degrees.
A rudimentary operating system originally shipped with the IBM PC in 1981, primarily a CP/M clone with some facilities modified for a more "IBM like" behaviour or to conform to IBM naming conventions (config.sys etc.).


Version 1 was so buggy it was rewritten mostly from scratch by IBM and Microsoft, which is the reason all subsequent DOS releases from Microsoft contain an IBM copyright notice, the manual for DOS was also an internal IBM product and not written by either MicroSoft or SCP.
==Products==
This lists major DOS operating system products by several companies.


==Porting issues==
;Digital Research (DRI) branch
Since we have a few given facts such as:
* [[DR DOS]]
* OS/2 command line was developed with compatibility with DOS in mind
* Novell DOS
* OS/2 has support for all known DOS [[codepages]]
* Caldera OpenDOS
* OS/2 has a DOS subsystem that is a full version of DOS v5 built in
* Caldera DR-DOS
It is somewhat apparent that porting to and especially from DOS is as easy as it gets, if you cannot get the tools or the time to make a 32 bit version for OS/2, you can in a worst case scenario run the original program under the DOS subsystem.
* Lineo DR-DOS
* DeviceLogics DR-DOS 8.1
;IBM
* [[PC DOS]], IBM DOS
;Lifeboat Associates
* SB-86 - Software Bus-86
;Microsoft (MS)
* [[MS-DOS]]
;PhysTechSoft
* PTS-DOS
;Seattle Computer Products (SCP)
* 86-DOS
;XDOS Family
* XDOS (1988)
* NSSDOS (1989)
* DOS/NT
* DOSC-C/Free-DOS/FreeDOS (1994)


==Known versions==
===Operating Systems with DOS Support===
This lists major versions of DOS, minor versions such as 6.21 or 6.22 that are product specific upgrades or minor bug fix releases are not listed
As above, only major or notable versions included.
<div style="column-count:3;-moz-column-count:3;-webkit-column-count:3">
<div style="column-count:2;-moz-column-count:2;-webkit-column-count:2">
* DOS Plus
* IBM OS/2 Standard Edition 1.0, Extended Edition 1.0
* DR-DOS v5
* IBM OS/2 Standard Edition 1.1, Extended Edition 1.1
* DR-DOS v8
* IBM OS/2 Standard Edition 1.2, Extended Edition 1.2
* DR-DOS v8.1
* IBM OS/2 Standard Edition 1.2, Extended Edition 1.3
* Enhanced DR-DOS 7.01.08
* Microsoft Windows 95
:aka EDR-DOS
* Microsoft Windows 98
* FreeDOS 1.1
* Microsoft Windows 98 Second Edition
* MS-DOS v1
* Microsoft Windows ME
* MS-DOS v1.1  
* PDOS
* MS-DOS v2
* MS-DOS v3
* MS-DOS v3.3
* MS-DOS v4
* MS-DOS v5
* MS-DOS v6
* MS-DOS v6.2
* MS-DOS v7
* MS-DOS v8 (Current)
* OpenDOS v7.01
* PC-DOS v1
* PC-DOS v5
* PC-DOS v6
* PC-DOS v6.1
* PC-DOS v6.3
* PC-DOS v7
* PC-DOS 2000
* PC-DOS v7.1 (Current)
* PTS-DOS 32
</div>
</div>


==Authors==
==DOS Shells==
* Seattle Computer Products (Original Author)
Software that runs on top of DOS and takes over the operation of the machine to varying degrees.
* [[IBM]]  
<div style="column-count:2;-moz-column-count:2;-webkit-column-count:2">
* [[Microsoft]]
*DESQview
* [[Digital Research]] et al.
*DESQview/X
*[[GEM]]
*Geos
*[[IBM TopView]]
*Lotus Magellan
*[[Microsoft Windows]] - Versions 1 to 3.11
*Tandy Deskmate
*Visi On
*Xtree
</div>


==Links==
==Links==
* http://www.opus.co.tt/dave/indexall.htm - Link site
* [http://www.bttr-software.de/forum/forum.php DOS ain't dead] - Probably the most active DOS related forum out there.
* http://www.drdosprojects.de - Enhanced DR-DOS & Forums
* [http://dosprograms.info.tt/ Interesting DOS programs]
 
==See also==
* [[:Category:DOS Tools]]
 
[[Category:Operating Systems]]
[[Category:Operating Systems]]

Latest revision as of 20:46, 11 March 2019

DOS is also a subsystem of OS/2, running in cohabitation with version 1.x of OS/2 and as a task in version 2 and later. Furthermore DOS is also used as a collective name for a variety of operating systems that offer compatibility with the PC DOS system to varying degrees.

Products

This lists major DOS operating system products by several companies.

Digital Research (DRI) branch
  • DR DOS
  • Novell DOS
  • Caldera OpenDOS
  • Caldera DR-DOS
  • Lineo DR-DOS
  • DeviceLogics DR-DOS 8.1
IBM
Lifeboat Associates
  • SB-86 - Software Bus-86
Microsoft (MS)
PhysTechSoft
  • PTS-DOS
Seattle Computer Products (SCP)
  • 86-DOS
XDOS Family
  • XDOS (1988)
  • NSSDOS (1989)
  • DOS/NT
  • DOSC-C/Free-DOS/FreeDOS (1994)

Operating Systems with DOS Support

As above, only major or notable versions included.

  • IBM OS/2 Standard Edition 1.0, Extended Edition 1.0
  • IBM OS/2 Standard Edition 1.1, Extended Edition 1.1
  • IBM OS/2 Standard Edition 1.2, Extended Edition 1.2
  • IBM OS/2 Standard Edition 1.2, Extended Edition 1.3
  • Microsoft Windows 95
  • Microsoft Windows 98
  • Microsoft Windows 98 Second Edition
  • Microsoft Windows ME
  • PDOS

DOS Shells

Software that runs on top of DOS and takes over the operation of the machine to varying degrees.

Links

See also

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