Editing Multiuser DOS (section)

==References==
{{reflist|refs=
<ref name="RM_1996_754">{{cite web |author-first=R. |author-last=M. |title=REAL/32 Upgrade Disk – Version 7.54 – Batch 08-96-01 – SRN0167.WP |id=R32UP754.ZIP |date=1996-07-31 |url=http://contents.driverguide.com/content.php?id=582964&path=SRN0167.TXT |access-date=2017-01-17 |url-status=live |archive-url=https://web.archive.org/web/20180826200229/https://contents.driverguide.com/content.php?id=582964&path=SRN0167.TXT |archive-date=2018-08-26}}</ref>
<ref name="DRI_1984_CCPM31">Digital Research (1984): ''Concurrent CP/M ships early in response to team effort''. [[Digital Dialogue (Digital Research)|Digital Dialogue]] – Employee Newsletter of Digital Research Inc., Volume 3, Number 1, p.&nbsp;1 ([http://corphist.computerhistory.org/corphist/view.php?s=documents&id=1008]).</ref>
<ref name="CCPM_1984">{{cite web |title=Concurrent CP/M with Windows Operating System – Technical Note for the IBM Personal Computer and Personal Computer XT |edition=1 |date=February 1984 |publisher=[[Digital Research]] |url=http://bitsavers.informatik.uni-stuttgart.de/pdf/digitalResearch/concurrent/4007-1010_Concurrent_CPM_with_Windows_Technical_Note_for_IBM_PC_Feb84.pdf |access-date=2017-01-04 |url-status=live |archive-url=https://web.archive.org/web/20170104170035/http://bitsavers.informatik.uni-stuttgart.de/pdf/digitalResearch/concurrent/4007-1010_Concurrent_CPM_with_Windows_Technical_Note_for_IBM_PC_Feb84.pdf |archive-date=2017-01-04}}</ref>
<ref name="Kildall_1982_8-bit">{{cite journal |title=Running 8-bit software on dual-processor computers |author-first=Gary Arlen |author-last=Kildall |author-link=Gary Arlen Kildall |journal=[[Electronic Design]] |date=1982-09-16 |page=157 |url=http://archive.computerhistory.org/resources/access/text/2016/12/102762506-05-01-acc.pdf |access-date=2017-08-19 |url-status=live |archive-url=https://web.archive.org/web/20170819183737/http://archive.computerhistory.org/resources/access/text/2016/12/102762506-05-01-acc.pdf |archive-date=2017-08-19}}</ref>
<ref name="DRI_1984_PCMODE">Digital Research (1984): ''PC-Mode bridges CP/M and PC-DOS''. [[Digital Dialogue (Digital Research)|Digital Dialogue]] – Employee Newsletter of Digital Research Inc., Volume 3, Number 1, p.&nbsp;3 ([http://corphist.computerhistory.org/corphist/view.php?s=documents&id=1008]).</ref>
<ref name="DRI_1984_CCPM31b">Digital Research: ''Concurrent CP/M Release 3.1 offers PC-DOS compatibility''. [[Digital Research News]] – For Digital Research Users Everywhere, Volume 4, No. 1, p.&nbsp;5, first quarter 1984 ([http://corphist.computerhistory.org/corphist/view.php?s=documents&id=1013]): "Concurrent CP/M Release 3.1 replaces MP/M-86 as Digital Research's multiuser system. Targeted at 16-bit microcomputers, Release 3.1 may also be configured for a single user environment. Kevin Wandryk, product line manager for the new release, said the PC-DOS mode in the new release increases the availability of applications software. End users can choose between products for Concurrent CP/M or PC-DOS. Digital Research will provide a list of those applications from PC-DOS which may be used, Wandryk said. The manufacturer's version was introduced in December at the COMDEX/Fall trade show in Las Vegas and is scheduled to ship in March."</ref>
<ref name="CCI_1997_HELP">{{cite book |title=CCI Multiuser DOS 7.22 GOLD Online Documentation |id=HELP.HLP |date=1997-02-10 |publisher=[[Concurrent Controls, Inc.]] (CCI)}}</ref>
<ref name="Scott_1991">{{cite news |title=Novell/DRI merger to reap better client management |author-first=Karyl |author-last=Scott |date=1991-07-29 |series=Networking |newspaper=[[InfoWorld]] |issn=0199-6649 |volume=13 |issue=30 |page=33 |publisher=[[InfoWorld Publishing Co.]] |url=https://books.google.com/books?id=mVAEAAAAMBAJ&pg=PA33 |access-date=2017-01-21 |url-status=live |archive-url=https://web.archive.org/web/20200209155946/https://books.google.de/books?id=mVAEAAAAMBAJ&pg=PA33&lpg=PA33&redir_esc=y |archive-date=2020-02-09}}</ref>
<ref name="BW_1991">{{cite news |title=Novell and Digital Research sign definitive merger agreement |date=1991-07-17 |work=[[Business Wire]] |url=http://tech-insider.org/personal-computers/research/1991/0717.html |access-date=2017-01-24 |url-status=live |archive-url=https://web.archive.org/web/20180818133749/https://tech-insider.org/personal-computers/research/1991/0717.html |archive-date=2018-08-18}}</ref>
<ref name="Allchin_1992">{{cite web |title=Novell/Digital Research reach definitive agreement… |author-first=Jim |author-last=Allchin |author-link=Jim Allchin |date=1992-05-27 |orig-year=1991-07-17 |type=Court document |id=Plaintiff's exhibit 828, [[Comes v. Microsoft]] |url=http://antitrust.slated.org/www.iowaconsumercase.org/011607/0000/PX00838.pdf |access-date=2017-01-21 |url-status=live |archive-url=https://web.archive.org/web/20161119074834/http://antitrust.slated.org/www.iowaconsumercase.org/011607/0000/PX00838.pdf |archive-date=2016-11-19}}</ref>
<ref name="Barney_1994_CCI">{{cite journal |title=CCI helps users run more DOS apps – Multiuser DOS Lite handles eight NetWare sessions |author-first=Doug |author-last=Barney |journal=[[InfoWorld]] |date=1994-07-25 |page=20 |url=https://books.google.com/books?id=kDgEAAAAMBAJ&pg=PA20 |access-date=2018-08-19}}</ref>
<ref name="Pontin_1995_IMS">{{cite journal |title=IMS offers Real32 OS for application servers |author-first=Jason |author-last=Pontin |date=1995-11-27 |journal=[[InfoWorld]] |url=https://books.google.com/books?id=VzgEAAAAMBAJ&pg=PA28 |access-date=2017-01-17}}</ref>
<ref name="CW_1991_DRMDOS50">{{cite journal |title=Digital Research präsentiert Multiuser-DOS |language=de |date=1991-03-22 |author=CW |journal=[[Computerwoche]] |url=https://www.computerwoche.de/a/digital-research-praesentiert-multiuser-dos,1139066 |access-date=2018-08-19 |url-status=live |archive-url=https://web.archive.org/web/20180819150822/https://www.computerwoche.de/a/digital-research-praesentiert-multiuser-dos,1139066 |archive-date=2018-08-19}}</ref>
<ref name="US5355501">{{cite patent |number=5355501 |country=US|status=patent|title=Idle Detection System |inventor1-first=Roger Alan |inventor1-last=Gross |inventor2-first=John P. |inventor2-last=Constant |gdate=1994-10-11 |fdate=1990-03-09 |url=https://patents.google.com/patent/US5355501A/en}}</ref>
<ref name="DRI_1984_CDOS31">Digital Research: ''Concurrent DOS bridges PC-DOS, CP/M''. [[Digital Research News]] – For Digital Research Users Everywhere, Volume 4, No. 2, p.&nbsp;3, May 1984 ([http://corphist.computerhistory.org/corphist/view.php?s=documents&id=1011]): '"Concurrent DOS Release 3.1 is rapidly gaining momentum and support from a wide range of microcomputer manufacturers," Wandryk said. "Some 60 hardware companies have licensed the product since it was released in early March."'</ref>
<ref name="Knox_1986_CDOS68K">{{cite newsgroup |title=Re: DRI Concurrent DOS for 68K |author-first=James M. |author-last=Knox |newsgroup=mod.computers.68k |date=1986-06-22 |url=http://www.megalextoria.com/usenet-archive/news044f1/b64/mod/computers/68k/00000078.html |access-date=2018-09-13 |url-status=live |archive-url=https://archive.today/20180913210113/http://www.megalextoria.com/usenet-archive/news044f1/b64/mod/computers/68k/00000078.html |archive-date=2018-09-13}}</ref>
<ref name="Knox_1987_DRI">{{cite newsgroup |title=CDOS-68K |author-first=James M. |author-last=Knox |newsgroup=mod.computers.68k |date=1987-01-31 |url=https://macgui.com/usenet/?group=78&start=80&id=27 |access-date=2018-09-13 |url-status=live |archive-url=https://archive.today/20180913210221/https://macgui.com/usenet/?group=78&start=80&id=27 |archive-date=2018-09-13}}</ref>
<ref name="DRI_1986_CDOS68K-1">{{cite web |title=Concurrent DOS 68K 1.2 – Developer Kit for Motorola VME/10 – Disk 1 |date=1986-08-06 |orig-year=1986-04-08 |url=http://www.cpm.z80.de/download/cdos1.zip |access-date=2018-09-13 }}</ref>
<ref name="DRI_1986_CDOS68K-2">{{cite web |title=Concurrent DOS 68K 1.2 – Developer Kit for Motorola VME/10 – Disk 2 |date=1986-08-06 |orig-year=1986-04-08 |url=http://www.cpm.z80.de/download/cdos2.zip |access-date=2018-09-13 }} (NB. This package also includes some header files from [[Concurrent DOS 286]], including STRUCT.H explicitly mentioning [[LOADALL]] for "8086 emulation".)</ref>
<ref name="DRI_1986_CDOS68K-3">{{cite web |title=Concurrent DOS 68K 1.2 – Developer Kit for Motorola VME/10 – Disk 3 |date=1986-08-06 |orig-year=1986-04-08 |url=http://www.cpm.z80.de/download/cdos3.zip |access-date=2018-09-13 }}</ref>
<ref name="Infoworld_1985_Super">{{cite journal |author-first=Edward |author-last=Foster |title=Super DOS awaits new 80286 – Concurrent DOS 286 – delayed until Intel upgrades chip – offers Xenix's power and IBM PC compatibility |publisher=[[InfoWorld Media Group]] |journal=[[InfoWorld]] |volume=7 |issue=19 |date=1985-05-13 |issn=0199-6649 |pages=17–18 |url=https://books.google.com/books?id=2y4EAAAAMBAJ&pg=PA17}}</ref>
<ref name="BYTE_1985_CDOS286">{{cite journal |title=Concurrent DOS-286 Challenges Unix |journal=[[BYTE Magazine]] |date=May 1985 |volume=10 |number=5 |page=375-377<!-- plus more --> |url=http://tech-insider.org/personal-computers/research/1985/05.html |access-date=2017-01-23 |url-status=live |archive-url=https://archive.today/20180914120059/https://tech-insider.org/personal-computers/research/1985/05.html |archive-date=2018-09-14}} [https://archive.org/stream/byte-magazine-1985-05/1985_05_BYTE_10-05_Multiprocessing#page/n376/mode/1up/search/concurrent]</ref>
<ref name="Meta_1986_HighC12">{{cite book |title=High C Programmer's Guide – Version 1.2 for Concurrent DOS |publisher=[[MetaWare Incorporated]] |location=Santa Cruz, CA, USA |date=1986 |orig-year=1985-09-15 |edition=1 |url=http://www.bitsavers.org/pdf/metaware/High_C_Programmers_Guide_1.2_Concurrent_DOS_Sep85.pdf |access-date=2018-08-14 |quote=[…] This is a guide to the operation of the High C compiler as implemented for the Concurrent DOS 286 1.2 or later operating system – hereafter abbreviated to just "Concurrent" per Digital Research custom – running on the Intel 80286 microprocessor and using the Intel Object-Module Format (OMF). The compiler generates code for any of the Intel 8086/88/186/188/286 family of microprocessors. […]}}</ref>
<ref name="DRI_1986_FlexOS286">{{cite book |title=FlexOS Supplement for Intel iAPX 286-based Computers |publisher=[[Digital Research, Inc.]] |date=November 1986 |edition=1 |version=1.3 |url=http://www.bitsavers.org/pdf/digitalResearch/flexos/FlexOS_Suppliment_For_iAPX286_Computers_Nov86.pdf |access-date=2018-08-14 |archive-date=2019-04-21 |archive-url=https://web.archive.org/web/20190421183934/http://www.bitsavers.org/pdf/digitalResearch/flexos/FlexOS_Suppliment_For_iAPX286_Computers_Nov86.pdf |url-status=dead }}</ref>
<ref name="MaxFrame_2001_760">{{cite web |title=REAL/32 7.60 for MaxFrame |date=2001-08-20 |publisher=MaxFrame |url=http://www.maxframe.com/DR/REAL32/REAL32-760.ZIP |access-date=2018-09-14 }}</ref>
<ref name="MaxFrame_2001_774">{{cite web |title=REAL/32 7.74 for MaxFrame |date=2001-01-30 |publisher=MaxFrame |url=http://www.maxframe.com/DR/REAL32/MF774R32.zip |access-date=2018-09-14 }}</ref>
<ref name="Gallant_1984">{{cite journal |title=Digital Research, Monterey ink Unix-centered pact |author-first=John |author-last=Gallant |journal=[[Computerworld]] |date=1984-01-23 |volume=XVIII |number=3 |page=6 |url=https://books.google.com/books?id=dRR9VQBwdSIC&pg=PA6 |access-date=2019-02-03}}</ref>
<ref name="Wein_2002">{{cite web |title=Gary Kildall in England |author-first=Josef "Joe" |author-last=Wein |date=2002 |url=https://joewein.de/gary.html |access-date=2019-04-03 |url-status=live |archive-url=https://web.archive.org/web/20190403010811/https://joewein.de/gary.html |archive-date=2019-04-03}}</ref>
<ref name="Holsworth_2006">{{cite web |title=Video: Frank Holsworth, developer |author-first=Francis "Frank" R. |author-last=Holsworth |date=2006-02-01 |id={{CHMID|102770341}}. ITCHP 44403c1a3fd53. Lot Number X7847.2017 |type=interview |publisher=[[Computer History Museum]] |series=Information Technology Corporate Histories Collection |url=https://archive.computerhistory.org/resources/access/moving_image/2017/02/102770341-02-01-acc.wmv |access-date=2019-04-04 |url-status=live |archive-url=https://web.archive.org/web/20190403232808/https://archive.computerhistory.org/resources/access/moving_image/2017/02/102770341-02-01-acc.wmv |archive-date=2019-04-03}}</ref> 
<ref name="Swaine_1982_MPM286">{{cite journal |title=Homebrew Computer Club views Intel's superchip |author-first=Michael |author-last=Swaine |author-link=Michael Swaine (technical author) |date=1982-04-05 |journal=[[InfoWorld]] |volume=4 |number=13 |location=Palo Alto, CA, USA |page=4 |url=https://books.google.com/books?id=ZjAEAAAAMBAJ&pg=PA4 |access-date=2020-01-07 |url-status=live |archive-url=https://web.archive.org/web/20200107223947/https://books.google.com/books?id=ZjAEAAAAMBAJ&pg=PA4&lpg=PA4 |archive-date=2020-01-07 |quote=[…] [[Digital Research]] is producing an operating system for the [[Intel 80286|286]]. [[MP/M-286]] will take advantage of the processor's memory management and protection and virtual memory support. Digital Research is promising "complete" compatibility with its [[MP/M-86]] and [[CP/M-86]] for the [[Intel 8086|8086]] processor. [[Intel]] is supplying Digital Research with the hardware to develop and test MP/M-286. […]}}</ref>
<ref name="Bidmead_1985_CCPM286">{{cite journal |title=Surviving Big Blue |author-first=Christopher H. |author-last=Bidmead |author-link=Christopher H. Bidmead |date=2006-05-09 |orig-year=1985-03-25 |series=Which Computer? |journal=[[Doctor Who (magazine)|Doctor Who]] |url=http://bidmeadia.blogspot.com/2006/05/surviving-big-blue.html |access-date=2020-01-07 |url-status=live |archive-url=https://web.archive.org/web/20200107223658/http://bidmeadia.blogspot.com/2006/05/surviving-big-blue.html |archive-date=2020-01-07 |quote=[…] Paul Bailey of [[Digital Research]] keenly promotes this approach; it is his company that is supplying [[International Computers Limited|ICL]] and others with Concurrent Dos-286. This chameleon operating system allows ICL and other [[Intel 80286|80286]] manufacturers to build machines that will be able to cope with all the existing body of IBM-PC software – and at the same time promise multi-tasking, windowing and true concurrency, three features that together allow a single micro to do several things at once. […] Although no firm announcements have been made, it seems certain that by the end of the year [[Applied Computer Techniques|ACT]] will be offering a [[Concurrent CP/M-286|Concurrent CP/M 286]] machine to fuel its drive into the corporate market. But by this time it will have to contend with [[IBM]]'s own 80286 office micro, the PC/AT. […] IBM also have a software product in the offing that could pull the rug out from under the Concurrent contenders. Some 180K in size, [[TopView]] is a program for IBM PC's and AT's that beefs up the operating system to provide windowing facilities for existing 'well behaved' standard packages. […]}}</ref>
<ref name="DRI_1984_MicroNotes1">{{cite news |title=1 |newspaper=[[Micro Notes (Digital Research)|Micro Notes]] – A Technical Information Quarterly |volume=2 |number=1 |date=First Quarter 1984 |publisher=[[Digital Research, Inc.]] |location=Pacific Grove, CA, USA |url=https://www.z80cpu.eu/mirrors/oldcomputers.dyndns.org/public/pub/manuals/DRI_Micronotes_Vol2_1,2,3_full.pdf |access-date=2020-02-11 |url-status=live |archive-url=https://web.archive.org/web/20200211005618/https://www.z80cpu.eu/mirrors/oldcomputers.dyndns.org/public/pub/manuals/DRI_Micronotes_Vol2_1,2,3_full.pdf |archive-date=2020-02-11}}</ref>
<ref name="DRI_1984_MicroNotes2">{{cite news |title=2 |newspaper=[[Micro Notes (Digital Research)|Micro Notes]] – Technical information on Digital Research products |volume=2 |number=2 |date=May 1984 |publisher=[[Digital Research, Inc.]] |location=Pacific Grove, CA, USA |id=NWS-106-002 |url=https://www.z80cpu.eu/mirrors/oldcomputers.dyndns.org/public/pub/manuals/DRI_Micronotes_Vol2_1,2,3_full.pdf |access-date=2020-02-11 |url-status=live |archive-url=https://web.archive.org/web/20200211005618/https://www.z80cpu.eu/mirrors/oldcomputers.dyndns.org/public/pub/manuals/DRI_Micronotes_Vol2_1,2,3_full.pdf |archive-date=2020-02-11}}</ref>
<ref name="DRI_1984_MicroNotes3">{{cite news |title=3 |newspaper=[[Micro Notes (Digital Research)|Micro Notes]] – Technical information on Digital Research products |volume=2 |number=3 |date=July 1984 |publisher=[[Digital Research, Inc.]] |location=Pacific Grove, CA, USA |id=NWS-106-003 |url=https://www.z80cpu.eu/mirrors/oldcomputers.dyndns.org/public/pub/manuals/DRI_Micronotes_Vol2_1,2,3_full.pdf |access-date=2020-02-11 |url-status=live |archive-url=https://web.archive.org/web/20200211005618/https://www.z80cpu.eu/mirrors/oldcomputers.dyndns.org/public/pub/manuals/DRI_Micronotes_Vol2_1,2,3_full.pdf |archive-date=2020-02-11}}</ref>
<ref name="Schulman_1994_Undocumented-DOS">{{cite book |author-first1=Andrew |author-last1=Schulman |author-first2=Ralf D. |author-last2=Brown |author-link2=Ralf D. Brown |author-first3=David |author-last3=Maxey |author-first4=Raymond J. |author-last4=Michels |author-first5=Jim |author-last5=Kyle |title=Undocumented DOS: A programmer's guide to reserved MS-DOS functions and data structures – expanded to include MS-DOS 6, Novell DOS and Windows 3.1 |publisher=[[Addison Wesley]] |edition=2 |date=1994 |orig-year=November 1993<!-- first printing --> |isbn=0-201-63287-X |location=Reading, Massachusetts, USA |page=203 |url=https://archive.org/details/undocumenteddosp00andr_0 |url-access=registration}} (xviii+856+vi pages, 3.5"-floppy) Errata: [https://web.archive.org/web/20190417215556/http://www.cs.cmu.edu/afs/cs/user/ralf/pub/books/UndocumentedDOS/errata.ud2][https://web.archive.org/web/20190417212906/https://www.pcjs.org/pubs/pc/programming/Undocumented_DOS/#errata-2nd-edition]</ref>
<ref name="LSI_Octopus">[http://oldcomputer.info/8bit/hilger/index.htm LSI Octopus (Hilger Analytical) – MCbx]</ref>
<ref name="CW_1985_CDOS41">{{cite journal |author=CW |title=Concurrent DOS 4.1 in den USA angekündigt |language=de |date=1985-06-21 |journal=[[Computerwoche]] |url=http://www.computerwoche.de/a/concurrent-dos-4-1-in-den-usa-angekuendigt,1169757 |access-date=2017-01-18 |url-status=live |archive-url=https://web.archive.org/web/20170118112800/http://www.computerwoche.de/a/concurrent-dos-4-1-in-den-usa-angekuendigt,1169757 |archive-date=2017-01-18}}</ref>
<ref name="Infoworld_1985_80286">{{cite journal |author-first=Edward |author-last=Foster |title=Intel shows new 80286 chip – Future of DRI's Concurrent DOS 286 still unclear after processor fixed |publisher=[[InfoWorld Media Group]] |journal=[[InfoWorld]] |volume=7 |issue=34 |date=1985-08-26 |issn=0199-6649 |page=21 |url=https://books.google.com/books?id=_y4EAAAAMBAJ&pg=PA21}}</ref>
<ref name="CBR_1987_FlexOS-286">{{cite journal |title=Digital Research launches FlexOS 286 Real-Time Manufacturing Operating System |editor=CBR |journal=Computer Business Review |date=1987-01-15 |url=http://www.cbronline.com/news/digital_research_launches_flexos_286_real_time_manufacturing_operating_system |access-date=2018-09-15 |url-status=live |archive-url=https://archive.today/20130118190950/http://www.cbronline.com/news/digital_research_launches_flexos_286_real_time_manufacturing_operating_system |archive-date=2013-01-18}}</ref>
<ref name="IW_1987_MDOS386">{{cite journal |title=DRI To Release Multiuser 80386 Operating System |author-first=Jiri |author-last=Weiss |journal=[[InfoWorld]] |volume=9 |issue=7 |date=1987-02-16 |pages=1, 8 |url=https://books.google.com/books?id=0DAEAAAAMBAJ&pg=PA1 |access-date=2017-01-22}}</ref>
<ref name="CDOSXM52_2001">{{cite web |title=Question about Concurrent DOS XM 5.2 and CP/M |date=2001-12-08 |work=comp.os.misc |url=https://groups.google.com/d/msg/comp.os.misc/7fej2r5Q7qs/TPhZO5Txm1AJ}}</ref>
<ref name="Fisher_1987_CompuPro">{{cite journal |title=Compupro's 80286-Based Multiuser Machine Features Parallel Processing |author-first=Sharon |author-last=Fisher |date=1987-10-19 |journal=[[InfoWorld]] |page=19 |url=https://books.google.com/books?id=Bz8EAAAAMBAJ&pg=PA19}}</ref>
<ref name="CDOS60">{{cite web |url=http://www.retro-computing.org/?page=item&id=298#mainphoto |title = South-West Retro Computing Archive}}</ref>
<ref name="Angus_1987_52-11">{{cite journal |title=DRI Updates 2 Concurrent DOS Systems |author-first=Jeff |author-last=Angus |date=1987-09-21 |journal=[[InfoWorld]] |url=https://archive.org/details/Infoworld-1987-09-21}}</ref>
<ref name="Ryan_1987">{{cite journal |title=Concurrent DOS 386 fired up |author-first=Alan J. |author-last=Ryan |journal=[[Computerworld]] |volume=21 |issue=42 |date=1987-10-19 |pages=37, 40 |url=https://books.google.com/books?id=IIpG6vryR8AC&pg=PP37 |access-date=2017-01-22 |url-status=live |archive-url=https://web.archive.org/web/20170122151900/https://books.google.com/books?id=IIpG6vryR8AC&pg=PP37&lpg=PP37 |archive-date=2017-01-22}}</ref>
<ref name="CDOS386_COMDEX">{{cite journal |title=Digital to announce Concurrent DOS 386, Release 3.0 at COMDEX |date=1988-11-14 |journal=[[InfoWorld]] |volume=10 |issue=46 |page=29 |url=https://books.google.com/books?id=wTsEAAAAMBAJ&pg=PT28 |access-date=2017-01-22 |url-status=live |archive-url=https://web.archive.org/web/20170122163109/https://books.google.com/books?id=wTsEAAAAMBAJ&pg=PT28&lpg=PT28 |archive-date=2017-01-22}}</ref>
<ref name="1986_CDOSXM">{{cite journal |title=DRI's Latestd Concurrent PC-DOS Touts More Memory |author-first=Mark J. |author-last=Welch |date=1986-06-09 |journal=[[InfoWorld]] |page=20 |url=https://books.google.com/books?id=Ty8EAAAAMBAJ&pg=PA20 |access-date=2018-10-16}}</ref>
<ref name="DRI_1988_CDOS">{{cite web |title=Concurrent DOS – Powerful Multiuser Multitasking Operating Systems |date=1988 |publisher=[[Digital Research]] |url=http://bitsavers.org/pdf/digitalResearch/concurrent/1090-1411-002_Concurrent_DOS_Brochure_1988.pdf |access-date=2018-10-16 }}</ref>
<ref name="Scannell_1991_Scripting">{{cite journal |title=386 Multiuser/Multitasking DOS Gets Scripting Language, File Flush |author-first=Ed |author-last=Scannell |journal=[[InfoWorld]] |date=1991-06-03 |url=https://books.google.com/books?id=SlAEAAAAMBAJ&pg=PA16 |access-date=2017-01-19}}</ref>
<ref name="Scannell_1991_Concurrent">{{cite journal |title=Concurrent revs multiuser DOS |author-first=Ed |author-last=Scannell |journal=[[InfoWorld]] |date=1991-10-07 |page=17 |url=https://books.google.com/books?id=zT0EAAAAMBAJ&pg=PA17 |access-date=2017-01-19}}</ref>
<ref name="CCI_1998_CDOS">{{cite web |title=CCI Concurrent DOS Features |date=1998 |publisher=[[Concurrent Controls, Inc.]] |url=http://www.conctrls.com/CDOSprod.html |url-status=dead |archive-url=https://web.archive.org/web/20050217012319/http://www.conctrls.com/CDOSprod.html |archive-date=2005-02-17}}</ref>
<ref name="CCI_2003_CDOS310R1">{{cite web |title=CCI CDOS V3.10 Release 1 |date=2003 |publisher=[[Concurrent Controls, Inc.]] |url=http://www.conctrls.com/cdosrels.html |url-status=dead |archive-url=https://web.archive.org/web/20050313085453/http://www.conctrls.com/cdosrels.html |archive-date=2005-03-13}}</ref>
<ref name="Apricot_CDOS">{{cite web |url=http://www.retro-computing.org/?page=item&id=304#mainphoto |title = South-West Retro Computing Archive}}</ref>
<ref name="Scannell_1991_Tools">{{cite journal |title=DRI Adds Multiuser Tools To DRDOS; MS DOS 5.0 Release Slips To June |author-first1=Ed |author-last1=Scannell |author-first2=Stuart J. |author-last2=Johnston |date=1991-03-04 |journal=[[InfoWorld]] |volume=13 |issue=9 |pages=1, 97 |url=https://books.google.com/books?id=rlAEAAAAMBAJ&pg=PA97 |access-date=2017-01-21}}</ref>
<ref name="CW_MDOS51">{{Cite web|url=http://www.computerwoche.de/a/digital-research-kommt-mit-der-version-5-1-von-multiuser-dos,1133624|title = Jetz Zugriff auf Novell-Netze möglich: Digital Research kommt mit der Version 5.1 von Multiuser-DOS}}</ref>
<ref name="CCI_FPROD">{{cite web |url=http://conctrls.com/frames/f-prod.htm |title=CONCURRENT CONTROLS: The Multi User Company |website=conctrls.com |access-date=15 January 2022 |archive-url=https://web.archive.org/web/20010619110215/http://conctrls.com/frames/f-prod.htm |archive-date=19 June 2001 |url-status=dead}}</ref>
<ref name="Citrix_1997">{{cite news |title=Citrix to Acquire DataPac Australasia; Acquisition to Accelerate Citrix Presence in High-Growth Asia-Pacific Market |work=[[Business Wire]] |date=1997-09-09 |author=[[Citrix Systems, Inc.]] |location=[[Fort Lauderdale]], FL, USA |url=https://www.thefreelibrary.com/Citrix+to+Acquire+DataPac+Australasia%3B+Acquisition+to+Accelerate...-a019749228 |access-date=2017-01-20}}</ref>
<ref name="Duursma_2006_Citrix">{{cite web |title=Datapac history (Citrix R&D Australia) |date=2006-10-15 |orig-year=2005 |author-first1=Martin |author-last=Duursma |editor-first=Jeff |editor-last=Muir |work=Citrix Blogger |url=https://citrixblogger.org/2006/10/15/datapac-history-citrix-rd-australia/ |access-date=2017-01-19 |url-status=live |archive-url=https://web.archive.org/web/20170120205353/https://citrixblogger.org/2006/10/15/datapac-history-citrix-rd-australia/ |archive-date=2017-01-20}}</ref>
<ref name="Costello_1997_DataPac">{{cite news |title=DataPac sale expected to benefit channel |author-first=John |author-last=Costello |url=http://www.arnnet.com.au/article/114266/datapac_sale_expected_benefit_channel/ |work=Australian Reseller News |date=1997-09-17 |access-date=2015-07-28 |url-status=live |archive-url=https://web.archive.org/web/20170120220419/http://www.arnnet.com.au/article/114266/datapac_sale_expected_benefit_channel/ |archive-date=2017-01-20}}</ref>
<ref name="Mulcaster_2002">{{cite news |title=Citrix leading a silicon charge |author-first=Glenn |author-last=Mulcaster |url=http://www.theage.com.au/articles/2002/10/26/1035504890627.html |work=Australian Reseller News |date=2002-10-29 |access-date=2015-07-28 |url-status=live |archive-url=https://web.archive.org/web/20170120221635/http://www.theage.com.au/articles/2002/10/26/1035504890627.html |archive-date=2017-01-20}}</ref>
<ref name="CCI_1999_Applica">{{cite web |title=Reflecting its continuing focus on the Applica PC-sharing software products, Concurrent Controls Inc. today announced a move to Applica Inc. |author=Applica Inc. |date=1999-11-08 |work=[[PRNewswire]] |location=South San Francisco, CA, USA |url=http://www.prnewswire.com/news-releases/concurrent-controls-announces-change-to-applica-inc-77081802.html |access-date=2017-01-20 |url-status=live |archive-url=https://web.archive.org/web/20160516152918/http://www.prnewswire.com/news-releases/concurrent-controls-announces-change-to-applica-inc-77081802.html |archive-date=2016-05-16}}</ref>
<ref name="Aplycon_2002_Applica">{{cite web |title=Letter to Applica Distributors, Dealers, Partners and Users |author=Aplycon Technologies |date=2002-10-15 |url=http://www.applica.com/ |url-status=live |archive-url=https://web.archive.org/web/20021122081718/http://www.applica.com/ |archive-date=2002-11-22}}</ref>
<ref name="IMS_2002_R32-793">{{cite web |title=Real/32 7.93 Enhancements and Bug fixes |date=2002-11-22 |publisher=[[Intelligent Micro Software]] |url=http://www.imsltd.com/whats_new/new_793.htm |access-date=2017-01-17 |url-status=live |archive-url=https://web.archive.org/web/20170118004218/http://www.imsltd.com/whats_new/new_793.htm |archive-date=2017-01-18}}</ref>
<ref name="IMS_2003_R32-794">{{cite web |title=Real/32 7.94 Enhancements and Bug fixes |date=2003-01-31 |publisher=[[Intelligent Micro Software]] |url=http://www.imsltd.com/whats_new/new_794.htm |access-date=2017-01-17 |url-status=live |archive-url=https://web.archive.org/web/20170118011734/http://www.imsltd.com/whats_new/new_794.htm |archive-date=2017-01-18}}</ref>
<ref name="IS_2010_R795">{{cite web |title=IMS PRICE LIST – AUTUMN 2010 |date=August 2010 |publisher=Integrated Solutions |url=http://www.imsltd.com/pricespecs/price_list.htm |access-date=2017-01-17|archive-url=https://web.archive.org/web/20170118003730/http://www.imsltd.com/pricespecs/price_list.htm |archive-date=2017-01-18}} (NB. Lists REAL/32 7.95.)</ref>
<ref name="IMS_1999_R32-790">{{cite web |title=IMS REAL/32 7.9 Announcement |url=http://www.imsltd.com/products/latest_real32.htm |date=1999 |publisher=[[Intelligent Micro Software]] |url-status=live |archive-url=https://web.archive.org/web/20170118201737/http://www.imsltd.com/products/latest_real32.htm |archive-date=2017-01-18}}</ref>
<ref name="LII_2002_Discontinued">{{cite web |title=REAL/32 products discontinued |date=2002-04-22 |url=http://www.lii.com/NEWS/REAL32Liquidated.htm |publisher=Logan Industries, Inc. (LLI) |url-status=dead |archive-url=https://web.archive.org/web/20030423144710/http://www.lii.com/NEWS/REAL32Liquidated.htm |archive-date=2003-04-23}}</ref>
<ref name="LII_2002_NewOwner">{{cite web |title=REAL/32 under new ownership |date=2002-05-22 |orig-year=2002-05-02 |url=http://www.lii.com/NEWS/REAL32Transition.htm |publisher=Logan Industries, Inc. (LLI) |url-status=dead |archive-url=https://web.archive.org/web/20021203022321/http://www.lii.com/NEWS/REAL32Transition.htm |archive-date=2002-12-03}}</ref>
<ref name="LII_2002_ITERA">{{cite web |title=IMS acquired by ITERA |date=2002-05-23 |url=http://www.lii.com/NEWS/IMSReorganized.htm |publisher=Logan Industries, Inc. (LLI) |url-status=dead |archive-url=https://web.archive.org/web/20030423142937/http://www.lii.com/NEWS/IMSReorganized.htm |archive-date=2003-04-23}}</ref>
<ref name="ITERA_UK">{{citation |title=ITERA LIMITED |publisher=UK Companies List<!-- |url=https://www.companieslist.co.uk/04143290-itera-limited |access-date=2017-01-18 |url-status=live |archive-url=https://web.archive.org/web/20170118214015/https://www.companieslist.co.uk/04143290-itera-limited |archive-date=2017-01-18 -->}}</ref>
<ref name="NEXOK_Itera">{{cite web |title=Itera Limited |publisher=NEXOK |url=https://www.nexok.co.uk/company/04143290/itera-limited |access-date=2017-01-18}}</ref>
<ref name="realng">REAL/NG main page (2001) ([https://web.archive.org/web/20011103183717/http://www.realng.com/]).</ref>
<ref name="keyfeaturesofrealng">Key features of REAL/NG (2003) ([https://web.archive.org/web/20030810131406/http://www.realng.com/keyfeaturesofrealng.htm from realng.com 2003]).</ref>
<ref name="realng_probablylatest">Probably latest REAL/NG ([https://web.archive.org/web/20031224153358/http://www.realng.com/ realng.com 2003]).</ref>
<ref name="realng_disappear">REAL/NG disappearing from realng.com ([https://web.archive.org/web/20050130075440/http://realng.com/ realng.com 2005]).</ref>
}}