Software:Cromemco DOS

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Not to be confused with Concurrent DOS.
Short description: 1977 microcomputer operating system
Cromemco DOS
DeveloperCromemco
OS familyCP/M-like[1]
Working stateDiscontinued
Source modelClosed source
Initial releaseJune 1977; 46 years ago (1977-06)
PlatformsZilog Z80
Default user interfaceCommand-line interface (CONPROC.COM)[2]
LicenseProprietary

Cromemco DOS or CDOS (an abbreviation for Cromemco Disk Operating System) is a CP/M-like[1] operating system by Cromemco[3] designed to allow users of Cromemco microcomputer systems to create and manipulate disk files using symbolic names.[4]

Overview

Cromemco Z-2 CPU unit and terminal

CDOS was written in Zilog Z80 machine code. Due to the number of available programs available to run under Digital Research CP/M at that time, CDOS was designed to be upwards CP/M-compatible. Many programs written for CP/M versions up to and including version 1.33 run without modification under CDOS. However, programs written for CDOS generally do not run under CP/M.[5]

The Cromemco Z-2 had the ability to run Cromemco DOS.[1][6] Besides CP/M 2.2 and Cromix, the Cromemco System One can also run Cromemco DOS.[7] The Cromemco C-10 personal computer, introduced in 1982, also ran CDOS.[8]

An emulator for a Cromemco CDOS system exists.[9]

Commands

The following list of commands are supported by Cromemco DOS.[4]

Intrinsic commands

  • BYE
  • DIR
  • ERA
  • REN
  • SAVE
  • TYPE


Later versions also support the ATTR command.[10][11]

Extrinsic command programs

  • @ (Batch)
  • DUMP
  • EDIT
  • INIT (Initialize)
  • STAT (Disk Status)
  • WRTSYS (Write System)
  • XFER (Transfer)


Later versions also support the MEMTEST command.[10][12]

See also

  • Harry Garland
  • Roger Melen

References

  1. ↑ 1.0 1.1 1.2 "Cromemco - System I/II/III". 2010-11-21. https://www.old-computers.com/museum/computer.asp?c=113&st=1. "CDOS is a CP/M like operating system." 
  2. ↑ "CP/M 2.2 GEN 2". Canberra, Australia. 2018-09-29. http://www.sydneysmith.com/wordpress/2229/cpm22-gen-2/. 
  3. ↑ "Cromemco History". S100 Computers. 2018-08-11. http://www.s100computers.com/Hardware%20Folder/Cromemco/History/History.htm. 
  4. ↑ 4.0 4.1 CDOS User's Manual (1 ed.). Mountain View, California, USA: Cromemco Incorporated. 1977. http://www.hartetechnologies.com/manuals/Cromemco/CDOSv1.PDF. Retrieved 2020-03-15.  (i+32 pages)
  5. ↑ "New CDOS". Cromemco Users Bulletin (Mountain View, California, USA: Cromemco, Inc.) 1 (1). December 1978. https://amaus.org/static/S100/cromemco/user%20groups/197812%20Cromemco%20Users%20Bulletin%20Issue%201.pdf.  (9 pages)
  6. ↑ "Cromemco Z-1". The History of Personal Computing. 2014-10-31. http://historyofpersonalcomputing.com/wordpress/cromemco-z-1/. 
  7. ↑ "Cromemco System One". Harte Technologies: Computer History. http://www.cpm80.com/s100/cromemco.html. 
  8. ↑ "Cromemco C10". 2011. https://www.old-computers.com/museum/computer.asp?c=638&st=1. 
  9. ↑ "Run CDOS". Canberra, Australia. 2019. http://www.sydneysmith.com/wordpress/run-cdos/. 
  10. ↑ 10.0 10.1 Cromemco Disk Operating System (CDOS) - User's Manual. Mountain View, California, USA: Cromemco, Inc.. November 1978. Part No. 023-0036. http://maben.homeip.net/static/S100/cromemco/CDOS/Cromemco%20CDOS%200203%20023-0036%20197811.pdf. Retrieved 2014-04-23.  (110+iv pages)
  11. ↑ Cromemco CDOS Operating System - Instruction Manual. Mountain View, California, USA: Cromemco, Inc.. June 1981. Part No. 023-0036. http://maben.homeip.net/static/S100/cromemco/CDOS/Cromemco%20CDOS%200236%20023-0036%20198106.pdf. Retrieved 2014-05-19.  (viii+243+iii pages)
  12. ↑ Cromemco Disk Operating System Series-2 CDOS - Instruction Manual - User's Manual. Mountain View, California, USA: Cromemco, Inc.. February 1980. Part No. 023-0036. http://maben.homeip.net/static/S100/cromemco/CDOS/Cromemco%20CDOS%2002xx%20023-0036%20198002.PDF. Retrieved 2015-03-06.  (144 pages)

External links



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