CP/M-86

Tim Olmstead Memorial Digital Research CP/M Library (cpm.z80.de) Here, in one place, are all the manuals we have for Digital Research software products. These manuals have been produced by scanning, and ocr’ing, the originals. Where possible, the look and feel of the original has been preserved as much as possible. The manuals presented here have been through an extensive clean-up process. OCR is not an exact art, at least not in the affordable software available for the PC, so a separate cleanup process is necessary to produce a pretty manual.

The CP/M 86 and CP/M 80 Museum (cpm8680.com) This website is a Work In Progress dedicated to CP/M (Control Program for Microcomputers) which was (and is) an operating system similar to MS-DOS but which predated MS-DOS, and which is in fact the operating system that MS-DOS descended from. But CP/M is much more than simply an early version of MS-DOS and CP/M is very much alive in online communities of Enthusiasts and Others who still use CP/M in Old (and sometimes newer) Computers and Emulators.

CP/M-86 1.00 for the IBM Personal Computer (pcjs.com) This is the first IBM version of CP/M-86, produced by Digital Research Inc. in 1982.

CP/M-86 1.1B (Eagle Computer) (pcjs.com) This is an OEM version of CP/M-86 by Eagle Computer.

Going on from there, he saw two other brothers, James son of Zebedee and his brother John. They were in a boat with their father Zebedee, preparing their nets. Jesus called them, Matthew 4:21 NIV

CP/M and Digital Research Inc. (DRI) Web pages (retrotechnology.com) Many software and hardware companies of the 1980’s and beyond, began as one or two-person companies offering a CP/M-compatible program, or a 8080 or Z80-based hardware product or system. CP/M was the dominant operating system for the 8080 and Z80 based systems of the microcomputer market in the mid-1970’s through well into the 1980’s. Created by Dr. Gary Kildall before 1975 and sold quietly in that year as CP/M version 1.3 for $70 per disk, it became known as IMSAI’s first diskette operating system IMDOS in 1976. Gary Kildall and his wife formed Digital Research Inc. to sell and support the product. A popular release was CP/M 1.4 in 1978, and later as CP/M 2.0 and 2.2 in 1979. It was popular because it was cheap and non-proprietary, and because it included all the software tools and information necessary to move it to any hardware platform with a terminal and a floppy diskette controller. Proprietary or competing Z80/8080 operating systems of the time were often program-compatible with CP/M. Non-Z80 systems sometimes had a “Z80 card” in order to run CP/M.

Digital Research Source Code (cpm.z80.de) Here you will find all the source code that we have for Digital Research software products. If there is something that you don’t see the source for, and you have it, please drop me a line, and I will provide you an address where to send it. It will then be posted here so everybody can enjoy it.

CP/M-86 (Wikipedia) 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 are the same as in CP/M-80. Executable files used the relocatable .CMD file format.[nb 1] Digital Research also produced a multi-user multitasking operating system compatible with CP/M-86, MP/M-86, which later evolved into Concurrent CP/M-86. When an emulator was added to provide PC DOS compatibility, the system was renamed Concurrent DOS, which later became Multiuser DOS, of which REAL/32 is the latest incarnation. The FlexOS, DOS Plus, and DR DOS families of operating systems started as derivations of Concurrent DOS as well.

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