Editing Multiuser DOS (section)

===Adaptations===
===={{anchor|Datapac|System Manager}}DataPac Australasia====
<!-- This section may be linked to from inside or outside this article. Do not rename without keeping in sync. -->

Known versions by DataPac Australasia Pty Limited include:

* Datapac Multiuser DOS 5.0
* Datapac Multiuser DOS 5.1 (BDOS 6.6)
<!-- * Datapac System Manager 5.0? did it exist? -->
* Datapac System Manager 7.0 (1996-08-22)

<!-- System Manager found market acceptance as NetWare dial-in WAN servers and as multiuser servers for cheaper terminals in China. -->
In 1997, Datapac was bought by [[Citrix Systems, Inc.]],<ref name="Citrix_1997"/><ref name="Duursma_2006_Citrix"/><ref name="Costello_1997_DataPac"/> and System Manager was abandoned soon after. In 2002 the Sydney-based unit was spun out into Citrix' Advanced Products Group.<ref name="Mulcaster_2002"/>

===={{anchor|CCI|CCI7.00|CCI7.10|CCI7.21|CCI7.22}}Concurrent Controls====
<!-- This section may be linked to from inside or outside this article. Do not rename without keeping in sync. -->

Known CCI Multiuser DOS versions by Concurrent Controls, Inc. (CCI) include:

* CCI Multiuser DOS 7.00
* CCI Multiuser DOS 7.10
* CCI Multiuser DOS 7.21<ref name="CCI_1997_HELP"/>
* CCI Multiuser DOS 7.22<ref name="CCI_1997_HELP"/> R1 (September 1996), R2 (1996), R3 (1997), R4 GOLD/PLUS/LITE (BDOS 6.6<!-- 1466h -->, 1997-02-10), R5 GOLD (1997), R6 GOLD (1997), R7 GOLD (June 1998), R8 GOLD, R9 GOLD, R10 GOLD, R11 GOLD (2000-09-25), R12 GOLD (2002-05-15), R13 GOLD (2002-07-15), R14 GOLD (2002-09-13), R15 GOLD, R16 GOLD (2003-10-10), R17 GOLD (2004-02-09), R18 GOLD (2005-04-21)<!-- 2004? -->

All versions of CCI Multiuser DOS report themselves as "IBM PC DOS" version 3.31.<ref name="CCI_1997_HELP"/> Similar to [[SETVER]] under [[DOS]], this can be changed using the Multiuser DOS {{mono|DOSVER&nbsp;x.y}} utility.<ref name="CCI_1997_HELP"/>

In 1999, CCI changed its name to Applica, Inc.<ref name="CCI_1999_Applica"/> In 2002 Applica Technology became Aplycon Technologies, Inc.<ref name="Aplycon_2002_Applica"/>

===={{anchor|IMS}}Intelligent Micro Software, Itera and Integrated Solutions====

=====DOS 386 Professional=====
{{Expand section|date=January 2017}}

====={{anchor|IMS5.1|IMS5.11|IMS5.14|IMS7.0|IMS7.1}}IMS Multiuser DOS=====
Known adaptations of IMS Multiuser DOS include:

* IMS Multiuser DOS Enhanced Release 5.1 (1992)
* IMS Multiuser DOS 5.11
* IMS Multiuser DOS 5.14
* IMS Multiuser DOS 7.0
* IMS Multiuser DOS 7.1 (BDOS 6.7<!-- 1467h -->, 1994)

All versions of IMS Multiuser DOS report themselves as "IBM PC DOS" version 3.31.

====={{anchor|7.50|7.51|7.52|7.53|7.54|7.60|7.61|7.62|7.63|7.70|7.71|7.72|7.73|7.74|7.80|7.81|7.82|7.83|7.90|7.91|7.92|7.93|7.94|7.95}}REAL/32=====
<!-- This section may be linked to from inside or outside this article. Do not rename without keeping in sync. -->
[[File:IMS REAL-32 Version 7.6 720x400.png|thumb|IMS REAL/32 Version 7.6]]
Intelligent Micro Software Ltd. (IMS) of [[Thatcham]], UK, acquired a license to further develop Multiuser DOS from Novell in 1994 and renamed their product REAL/32 in 1995.<ref name="Pontin_1995_IMS"/>

Similar to [[FlexOS]]/[[4690 Operating System|4690 OS]] before, IBM in 1995 licensed REAL/32 7.50 to bundle it with their 4695 POS terminals.<ref name="Pontin_1995_IMS"/>{{clarify|date=September 2018|reason=Not clear if this replaces FlexOS 386 on these systems, or if merely upgrades some parts of FlexOS from REAL/32.}}

IMS REAL/32 versions:

* IMS REAL/32 7.50 (BDOS 6.8<!-- 1468h -->, 1995-07-01), 7.51 (BDOS 6.8<!-- 1468h -->), 7.52 (BDOS 6.9<!-- 1469h -->), 7.53 (BDOS 6.9<!-- 1469h -->, 1996-04-01), 7.54 (BDOS 6.9<!-- 1469h -->, 1996-08-01)<ref name="RM_1996_754"/>
* IMS REAL/32 7.60 (BDOS 6.9<!-- 1469h -->, February 1997),<ref name="MaxFrame_2001_760"/> 7.61, 7.62, 7.63
* IMS REAL/32 7.70 (November 1997), 7.71, 7.72, 7.73, 7.74 (1998)<ref name="MaxFrame_2001_774"/>
* IMS REAL/32 7.80, 7.81 (February 1999), 7.82, 7.83 (BDOS 6.10<!-- 146Ah -->)
* IMS REAL/32 7.90 (1999)<!-- before August 1999 -->,<ref name="IMS_1999_R32-790"/> 7.91, 7.92
* ITERA IMS REAL/32 7.93 (June 2002<!-- or November 2002 -->),<ref name="IMS_2002_R32-793"/> 7.94 (BDOS 6.13<!-- 146Dh -->, 2003-01-31)<ref name="IMS_2003_R32-794"/>
* Integrated Solutions IMS REAL/32 7.95<!-- (August 2010 or earlier) --><ref name="IS_2010_R795"/>

REAL/32 7.50 to 7.74 report themselves as "IBM PC DOS" version 3.31, whereas 7.80 and higher report a version of 6.20.<!-- this holds true at least up to 7.94, not sure about 7.95 --> [[Logical Block Addressing|LBA]] and [[FAT32]] support was added with REAL/32 7.90 in 1999.<ref name="IMS_1999_R32-790"/> On 19 April 2002, Intelligent Micro Software Ltd. filed for insolvency and was taken over by one of its major customers, Barry<!-- Stuart --> Quittenton's Itera Ltd.<ref name="LII_2002_Discontinued"/><ref name="LII_2002_NewOwner"/><ref name="LII_2002_ITERA"/> This company was dissolved on 2006-03-28.<ref name="ITERA_UK"/><ref name="NEXOK_Itera"/> As of 2010 REAL/32 was supplied by Integrated Solutions<!-- Ltd. --> of Thatcham, UK, but the company, at the same address, was later listed as builders.<ref name="IS_2010_R795"/>

=====REAL/NG=====
<!-- This section may be linked to from inside or outside this article. Do not rename without keeping in sync. -->
REAL/NG was <!-- ITERA? -->IMS' attempt to create the "Next Generation" of REAL/32, also named "REAL/32 for the internet age". REAL/NG promised "increased range of hardware from PCs to x86 multi-processor server systems".<ref name="realng"/>

Advertised feature list, as of 2003:<ref name="keyfeaturesofrealng"/>

* Runs with [[Red Hat Linux|Red Hat 7.3]] or later version of [[Linux]]
* [[Backward compatible]] with DOS and REAL/32
* Max 65535 [[virtual console]]s; each of these can be a user
* No Linux expertise required
* Administration/setup/upgrade by web browser (local and remote)
* Supplied with [[TCP/IP]] Linux-/Windows-based terminal emulator for the number of users purchased
* Print and file sharing built in
* [[Drive mapping]] between Linux and REAL/NG servers built in
* User hardware support
* Increased performance
* Vastly increased TPA
* [[Multi-processor]] support
* Improved hardware support
* Built-in firewall support
* Very low cost per seat
* Low total cost of ownership
* Supplied on CD
* Supplied with a set of Red Hat CDs

By 10 December 2003, IMS made "REALNG V1.60-V1.19-V1.12" available,<ref name="realng_probablylatest"/> which, based on the [[Internet Archive]], seems to be the latest release.

By 2005, the realng.com website was mirroring the IMS main website, and had no mention of REAL/NG, only REAL/32.<ref name="realng_disappear"/>