• Thumbnail for CP/M
    CP/M, originally standing for Control Program/Monitor and later Control Program for Microcomputers, is a mass-market operating system created in 1974 for...
    103 KB (10,919 words) - 06:14, 27 July 2025
  • Thumbnail for CP/M-86
    CP/M-86 is a discontinued version of the CP/M operating system that Digital Research (DR) made for the Intel 8086 and Intel 8088. The system commands...
    31 KB (2,569 words) - 17:24, 22 July 2025
  • MP/M (Multi-Programming Monitor Control Program) is a discontinued multi-user version of the CP/M operating system, created by Digital Research developer...
    30 KB (2,375 words) - 16:05, 19 July 2025
  • of the CP/M disk operating system. Eight-bit computers running CP/M 80 were built around an Intel 8080/8085, Zilog Z80, or compatible CPU. CP/M 86 ran...
    16 KB (1,952 words) - 06:45, 30 March 2025
  • In CP/M-86, Concurrent CP/M-86, Personal CP/M-86, S5-DOS, DOS Plus, Concurrent DOS, FlexOS, Multiuser DOS, System Manager and REAL/32 as well as by SCP1700...
    4 KB (453 words) - 20:31, 15 October 2024
  • Thumbnail for 86-DOS
    86-DOS (redirect from X86 CP/M clone)
    OS/8 and CP/M, which made it easy to port programs from the latter. Its application programming interface was very similar to that of CP/M. The system...
    57 KB (3,963 words) - 07:23, 18 June 2025
  • Thumbnail for Commodore 128
    Commodore 128 (section CP/M)
    Z80 CPU which allows the C128 to run CP/M, as an alternative to the usual Commodore BASIC environment. The huge CP/M software library, coupled with the...
    52 KB (7,039 words) - 06:43, 13 July 2025
  • Thumbnail for Box-drawing characters
    characters defined by default as block and line drawing characters. The CP/M Plus character set used on various Amstrad computers of the CPC, PCW and...
    21 KB (1,322 words) - 03:00, 26 June 2025
  • text) This isn't a problem for CP/M-86 style executables under CP/M-86, CP/M-86 Plus, Personal CP/M-86, S5-DOS, Concurrent CP/M-86, Concurrent DOS, Concurrent...
    92 KB (9,313 words) - 11:15, 27 July 2025
  • Thumbnail for GEM (desktop environment)
    (charting, etc.) for any of the 8-bit and 16-bit platforms CP/M-80, Concurrent CP/M, CP/M-86 and MS-DOS (NEC APC-III) would run on, a task that otherwise...
    55 KB (5,092 words) - 20:34, 28 July 2025
  • Thumbnail for Digital Research
    Gary Kildall to market and develop his CP/M operating system and related 8-bit, 16-bit and 32-bit systems like MP/M, Concurrent DOS, FlexOS, Multiuser DOS...
    27 KB (2,159 words) - 08:29, 19 July 2025
  • Thumbnail for COM file
    COM file (redirect from CP/M COM executable)
    executable format used in CP/M (including SCP and MSX-DOS) as well as DOS. It is very simple; it has no header (with the exception of CP/M 3 files), and contains...
    15 KB (1,900 words) - 10:47, 23 July 2025
  • architectures. In the 1970s and 1980s Digital Research implemented PIP on CP/M and MP/M. It is said that during development it was named ATLATL, which is an...
    7 KB (727 words) - 19:08, 18 June 2025
  • Thumbnail for Spreadsheet
    part of the CP/M software package included with the Osborne 1 portable computer. It quickly became the de facto standard spreadsheet for CP/M. The introduction...
    80 KB (9,711 words) - 09:21, 24 June 2025
  • System CP/M CP/M CP/M for Intel 8080/8085 and Zilog Z80 Personal CP/M, a refinement of CP/M CP/M Plus with BDOS 3.0 CP/M-68K CP/M for Motorola 68000 CP/M-8000...
    73 KB (8,384 words) - 16:49, 4 June 2025
  • Thumbnail for Zilog Z80
    the CP/M operating system, a combination that dominated the market at the time. Four well-known examples of Z80 business computers running CP/M are the...
    118 KB (12,641 words) - 17:10, 15 June 2025
  • conventions (CP/M-80 BDOS calls were mapped into BDOS calls for CP/M-86), so that CP/M-80 and MP/M-80 programs could be ported to the CP/M-86 and MP/M-86 platforms...
    98 KB (9,272 words) - 13:52, 6 June 2025
  • Thumbnail for MS-DOS
    Digital Research's CP/M (for 8080/Z80 processors), ported to run on 8086 processors and with two notable differences compared to CP/M: an improved disk...
    93 KB (9,753 words) - 21:13, 19 July 2025
  • Thumbnail for DOS
    Digital Research's CP/M—the dominant disk operating system for 8-bit Intel 8080 and Zilog Z80 microcomputers—in order to simplify porting CP/M applications...
    56 KB (6,507 words) - 14:45, 10 June 2025
  • operating system that allowed a floppy disk to be used. This was the basis of CP/M. Kildall was working at the Naval Postgraduate School in Monterey, California...
    16 KB (1,707 words) - 18:57, 22 July 2025
  • Thumbnail for Commodore 64
    poor compared to other CP/M implementations. C64 CP/M and C128 CP/M both suffer a lack of software; although most commercial CP/M software can run on these...
    118 KB (13,272 words) - 19:29, 31 July 2025
  • Thumbnail for History of personal computers
    Kildall developed CP/M in 1974 as an O/S for the Intel Intellec and established his company, Digital Research, in the same year. CP/M originally stood...
    157 KB (20,600 words) - 18:39, 25 July 2025
  • Brown (2000). "Int 0x1A, AH=0x04". Ralf Brown's Interrupt List. "CP/M Plus (CP/M Version 3.0) Operating System Guide" (PDF). "BDOS system calls". Ralf...
    30 KB (1,630 words) - 01:06, 30 July 2025
  • Thumbnail for Osborne 1
    Computer Corporation. It weighs 24.5 lb (11.1 kg), cost US$1,795, and runs the CP/M 2.2 operating system. It is powered from a wall socket, as it has no on-board...
    29 KB (3,110 words) - 22:57, 6 July 2025
  • board system (BBS) software packages. Citadel – originally written for the CP/M operating system, had many forks for different systems under different names...
    5 KB (467 words) - 14:13, 26 June 2025
  • Thumbnail for Zorba (computer)
    The Zorba was a portable computer running the CP/M operating system manufactured in 1983 and 1984. It was originally manufactured by Telcon Industries...
    5 KB (519 words) - 22:44, 25 July 2025
  • Thumbnail for Multiuser DOS
    Digital Research 8-bit operating systems CP/M and MP/M, and the 16-bit single-tasking CP/M-86 which evolved from CP/M. When Novell abandoned Multiuser DOS...
    63 KB (6,013 words) - 17:25, 13 July 2025
  • Thumbnail for Gary Kildall
    Gary Kildall (redirect from Father of CP/M)
    microcomputer entrepreneur. During the 1970s, Kildall created the operating system CP/M among other operating systems and programming tools, and subsequently founded...
    51 KB (4,664 words) - 16:03, 18 July 2025
  • Thumbnail for ASCII
    compatibility necessitated continuing to follow it. When Gary Kildall created CP/M, he was inspired by some of the command line interface conventions used in...
    108 KB (8,017 words) - 04:50, 30 July 2025
  • timeline of events in the history of the 8-bit 8080-based and 16-bit x86-based CP/M operating systems from 1974 to 2014, as well as the hardware and software...
    235 KB (7,270 words) - 09:03, 27 May 2025