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Text of the page (random words):
p m 86 official website www cpm z80 de mp m multi programming monitor control program 8 is a discontinued multi user version of the cp m operating system created by digital research developer tom rolander in 1979 1 7 8 9 2 3 4 it allowed multiple users to connect to a single computer each using a separate terminal mp m was a fairly advanced operating system for its era at least on microcomputers it included a priority scheduled multitasking kernel before such a name was used the kernel was referred to as the nucleus with memory protection concurrent input output xios and support for spooling and queueing it also allowed for each user to run multiple programs and switch between them contents 1 mp m platforms 1 1 mp m 80 1 2 mp m 86 1 3 mp m 8 16 1 4 mp m 286 2 commands 3 cp net cp nos mp net and mp nos 4 legacy 5 notes 6 references mp m platforms edit mp m 80 edit the 8 bit system required a 8080 or z80 cpu and a minimum of 32 kb of ram to run but this left little memory for user applications in order to support reasonable setups mp m allowed for memory to be switched in and out of the machine s real memory area so for instance a program might be loaded into a bank of ram that was not addressable by the cpu and when it was time for the program to run that bank of ram would be switched to appear in low memory typically the lower 32 or 48 kb and thus become visible to the os this technique known as bank switching was subsequently added to the single user version of cp m with version 3 0 one of the primary uses of mp m perhaps to the surprise of dri was as a power user version of cp m for a single user the ability to run several programs at the same time and address large amounts of memory made the system worth the extra price mp m ii 2 0 added file sharing capabilities in 1981 10 11 12 mp m ii 2 1 came with extended file locking in january 1982 10 versions mp m 1 0 1979 13 mp m 1 1 10 january 1980 mp m ii 2 0 july 1981 11 12 added file sharing 10 mp m ii 2 1 january 1982 added extended file locking 10 mp m 86 edit like cp m mp m was eventually ported to the 16 bit intel 8086 and appeared as mp m 86 2 0 in september 1981 14 15 16 main developers of the system include francis frank r holsworth 5 6 later a director of marketing at digital research known revisions of mp m 86 2 0 were dated 25 september 1981 and 5 october 1981 there also was an mp m 86 2 1 dated 20 july 1982 17 mp m 86 2 1 absorbed some of the technology of cp m 86 1 1 bdos 2 2 to become concurrent cp m 86 3 0 nb 1 bdos 3 0 in late 1982 18 which also added support for virtual screens 18 kathryn strutynski the project manager for cp m 86 continued as project manager for concurrent cp m 86 in december 1983 19 a dos emulator named pc mode became available as an optional module for concurrent cp m 86 3 1 bdos 3 1 shipping on 21 february 1984 20 and the system was further developed into the ms dos compatible concurrent dos bdos 3 1 and higher 21 this in turn continued to evolve into flexos and multiuser dos and as such is still in use in some industrial applications see also concurrent cp m 86 and concurrent dos mp m 8 16 edit mp m 8 16 sometimes also referred to as mp m 8 16 18 was compupro s name for a combination of the multi user 16 bit mp m 86 to perform single user single stream cp m functions along with multi user multi tasking 8 bit mp m operations 18 running on the multi processor compupro system 816 sr 22 later on this system was also able to run concurrent dos 3 1 see also cp m 8 16 cp m 86 80 and concurrent cp m 86 80 mp m 286 edit in 1982 digital research announced plans to develop mp m 286 to take advantage of the 16 bit intel 80286 s new memory management and protection features to run existing mp m 86 and cp m 86 applications 23 this was apparently never published as is but was further developed into concurrent cp m 286 24 which seems to have formed the basis for the later concurrent dos 286 in 1985 24 and flexos 286 in 1986 see also concurrent cp m 286 and concurrent dos 286 commands edit the following list of commands are supported by the mp m ii console command processor ccp 25 abort attach asm console ddt dir dskreset dump ed era eraq genhex genmod gensys lib link load mpmldr mpmstat pip printer prlcom rdt ren rmac sched sdir set show spool stat stopspl submit tod type user xref cp net cp nos mp net and mp nos edit in the early 1980s digital research also developed networking software named cp net used to connect an mp m server with multiple cp net clients named requesters running cp m 26 it was originally developed by tom rolander 2 mp net was an mp m system with networking allowing the mp m system to function as both requester and server with cp m requesters 26 the cp net clients could also be run in a diskless configuration with the system stored in rom then named cp nos with nos for network operating system similar mp nos contained mp m without local disk facilities like cp nos mp nos performed the disk functions through the network 26 the system allowed to share files and printers and send electronic messages nios network i o system 27 snios slave network i o system 27 ndos network disk operating system 27 cp net existed in versions 1 0 1 1 and 1 2 in versions for 8080 and z80 processors cp net 86 for 8086 was available as well later incarnations were dr net and flexnet legacy edit caldera permitted the redistribution and modification of all original digital research files including source code related to the cp m and mp m families through tim olmstead s the unofficial cp m web site since 1997 28 29 30 after olmstead s death on 12 september 2001 31 the free distribution license was refreshed and expanded by lineo who had meanwhile become the owner of those digital research assets on 19 october 2001 32 33 34 35 notes edit since there was apparently no 8 bit version of concurrent cp m the 16 bit version concurrent cp m 86 was also referred to simply as concurrent cp m clarification needed references edit a b information technology corporate histories collection computer history museum http www computerhistory org corphist view php s events id 1816 cite web missing or empty title help a b c ieee milestone in electrical engineering and computing cp m microcomputer operating system 1974 pdf computer history museum 2014 04 25 archived pdf from the original on 2019 04 03 retrieved 2019 04 03 a b shustek len 2016 08 02 in his own words gary kildall remarkable people computer history museum a b kildall gary arlen 2016 08 02 1993 kildall scott kildall kristin eds computer connections people places and events in the evolution of the personal computer industry manuscript part 1 kildall family retrieved 2016 11 17 a b wein josef joe 2002 gary kildall in england archived from the original on 2019 04 03 retrieved 2019 04 03 a b holsworth francis frank r 2006 02 01 video frank holsworth developer interview information technology corporate histories collection computer history museum chm catalog number 102770341 itchp 44403c1a3fd53 lot number x7847 2017 archived from the original on 2019 04 03 retrieved 2019 04 04 a b digital research july 1981 1979 mp m multi programming monitor control program user s guide pdf 4 ed pacific grove ca usa digital research archived from the original pdf on 2017 01 04 retrieved 2017 01 04 a b c digital research 1979 08 09 mp m 1 0 a multi programming monitor control program for microcomputer system development functional specification pdf internal specification archived pdf from the original on 2017 01 04 retrieved 2017 01 04 evans harold buckland gail lefer david 2004 they made america from the steam engine to the search engine two centuries of innovators little brown and co isbn 978 0 316 27766 2 a b c d e digital research january 1982 mp m ii operating system release 2 1 release notes pacific grove ca usa digital research retrieved 2017 01 04 1 2 a b digital research august 1981 mp m ii operating system user s guide pdf 1 ed pacific grove ca usa digital research archived pdf from the original on 2017 01 04 retrieved 2017 01 04 a b digital research 1981 mp m ii operating system programmer s guide pdf 1 ed pacific grove ca usa digital research archived pdf from the original on 2017 01 04 retrieved 2017 01 04 digital research march 1981 1979 mp m multi programming monitor control program user s guide pdf 3 ed digital research archived pdf from the original on 2017 01 04 retrieved 2017 01 04 digital research october 1981 september 1981 mp m 86 operating system system guide pdf corrected 1st ed pacific grove ca usa digital research archived pdf from the original on 2017 01 04 retrieved 2017 01 04 digital research 1981 09 25 mp m 86 operating system user s guide pdf 1 ed pacific grove ca usa digital research archived from the original pdf on 2017 01 04 retrieved 2017 01 04 digital research september 1981 mp m 86 operating system programmer s guide pdf 1 ed pacific grove ca usa digital research archived pdf from the original on 2017 01 04 retrieved 2017 01 04 mp m 86 2 1 disk contents retrieved 2020 01 07 a b c d kildall gary arlen 1982 09 16 running 8 bit software on dual processor computers pdf electronic design 157 archived pdf from the original on 2017 08 19 retrieved 2017 08 19 digital research 1984 pc mode bridges cp m and pc dos digital dialogue employee newsletter of digital research inc 3 1 3 archived pdf from the original on 2017 01 04 retrieved 2017 01 03 digital research 1984 concurrent cp m ships early in response to team effort digital dialogue employee newsletter of digital research inc 3 1 1 archived pdf from the original on 2017 01 04 retrieved 2017 01 04 digital research may 1984 concurrent dos bridges pc dos cp m digital research news for digital research users everywhere 4 2 3 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 compupro 8 16 oldcomputers com archived from the original on 2016 01 03 retrieved 2011 07 13 swaine michael 1982 04 05 homebrew computer club views intel s superchip infoworld palo alto ca usa 4 13 4 archived from the original on 2020 01 07 retrieved 2020 01 07 digital research is producing an operating system for the 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 8086 processor intel is supplying digital research with the hardware to develop and test mp m 286 a b bidmead christopher h 2006 05 09 1985 03 25 surviving big blue doctor who which computer archived from the original on 2020 01 07 retrieved 2020 01 07 paul bailey of digital research keenly promotes this approach it is his company that is supplying icl and others with concurrent dos 286 this chameleon operating system allows icl and other 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 act will be offering a 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 digital research august 1982 mp m ii operating system user s guide pdf 2 ed pacific grove ca usa digital research archived pdf from the original on 2019 10 20 retrieved 2020 01 02 a b c kildall gary arlen june 1981 cp m a family of 8 and 16 bit operating systems byte retrieved 2018 09 09 a b c cp net network operating system reference manual 5 ed digital research november 1982 1980 archived from the original on 2016 11 24 retrieved 2016 11 25 olmstead tim 1997 08 10 cp m web site needs a host newsgroup comp os cpm archived from the original on 2017 09 01 retrieved 2018 09 09 olmstead tim 1997 08 29 announce caldera cp m site is now up newsgroup comp os cpm archived from the original on 2017 09 01 retrieved 2018 09 09 3 license agreement caldera inc 1997 08 28 archived from the original on 2018 09 08 retrieved 2018 09 09 cite web cs1 maint bot original url status unknown link 4 5 allison 2001 09 12 tim olmstead newsgroup comp os cpm sparks bryan wayne 2001 10 19 chaudry gabriele gaby ed license agreement for the cp m material presented on this site lineo inc archived from the original on 2018 09 08 retrieved 2018 09 09 let this email represent a right to use distribute modify enhance and otherwise make available in a nonexclusive manner the cp m technology as part of the unofficial cp m web site with its maintainers developers and community i further state that as chairman and ceo of lineo inc that i have the right to do offer such a license bryan sparks cite web cs1 maint bot original url status unknown link chaudry gabriele gaby ed the unofficial cp m web site archived from the original on 2016 02 03 gasperson tina 2001 11 26 cp m collection is back online with an open source licence walk down memory lane the register archived from the original on 2017 09 01 swaine michael 2004 06 01 cp m and drm dr dobb s journal cmp media llc 29 6 71 73 361 archived from the original on 2018 09 09 retrieved 2018 09 09 6 v t e digital research people gary kildall dorothy mcewen kildall gordon eubanks tom rolander kathryn strutynski edward r mccracken products programming languages pl m cbasic dr logo dr scheme atari pascal pascal mt software technology batterymax cmd file com file dos protected mode services dynamic debugging tool file control block gem gem character set peripheral interchange program resource construction set viewmax xlt86 zero page operating systems cp m cp m 86 dos plus dr dos flexos imdos mp m multiuser dos related cpmulator star trek project list of computers running cp m category v t e disk operating systems dos ms dos ibm pc dos compatible systems api timeline comparison commands games ms dos multitasking ms dos 4 0 4 1 ms dos 7 ibm pc dos dos v dr dos h dos novell dos rom dos sisne plus pts dos freedos other x86 4680 os 4690 os 86 dos ados concurrent cp m 86 concurrent dos cp m 86 cp k datapac system manager dos plus k8918 os flexos mp m 86 multiuser dos netware palmdos novell dos opendos pc mos 386 real 32 sb 86 scp1700 towns os turbodos other platforms amigados amsdos andos apple dos apple prodos apple sos atari dos atari tos bw dos commodore dos concurrent dos 68k concurrent dos v60 cp m cromemco dos csi dos dec batch 11 dos 11 dip dos dos 360 dos xl edos...