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Cromemco DOS

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Not to be confused with Concurrent DOS.

Cromemco DOS
DeveloperCromemco
OS familyCP/M-like[1]
Working stateDiscontinued
Source modelClosed source
Initial releaseJune 1977; 47 years ago (1977-06)
PlatformsZilog Z80
Default
user interface		Command-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

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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

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

Intrinsic commands

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

Extrinsic command programs

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

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

See also

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References

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  1. ^ a b c "Cromemco - System I/II/III". old-computers.com (On-line Museum). 2010-11-21 [2002]. Archived from the original on 2010-11-21. Retrieved 2020-03-15. CDOS is a CP/M like operating system.
  2. ^ Sydney-Smith, Greg (2018-09-29). "CP/M 2.2 GEN 2". sydneysmith.com. Articles, CP/M. Canberra, Australia. Archived from the original on 2019-05-13. Retrieved 2020-03-15.
  3. ^ "Cromemco History". S100 Computers. 2018-08-11. Archived from the original on 2020-01-03. Retrieved 2020-03-15.
  4. ^ a b CDOS User's Manual (PDF). 1 (1 ed.). Mountain View, California, USA: Cromemco Incorporated. 1977. Archived (PDF) from the original on 2020-03-15. Retrieved 2020-03-15. (i+32 pages)
  5. ^ "New CDOS" (PDF). Cromemco Users Bulletin. Vol. 1, no. 1. Mountain View, California, USA: Cromemco, Inc. December 1978. Retrieved 2020-03-15. (9 pages)
  6. ^ "Cromemco Z-1". The History of Personal Computing. Blog Archive. 2014-10-31. Archived from the original on 2020-03-15. Retrieved 2020-03-15.
  7. ^ "Cromemco System One". Harte Technologies: Computer History. Archived from the original on 2020-03-15. Retrieved 2020-03-15.
  8. ^ "Cromemco C10". old-computers.com (On-line Museum). 2011 [2002]. Archived from the original on 2020-03-15. Retrieved 2020-03-15.
  9. ^ Sydney-Smith, Greg (2019). "Run CDOS". sydneysmith.com. Canberra, Australia. Archived from the original on 2020-03-15. Retrieved 2020-03-15.
  10. ^ a b Cromemco Disk Operating System (CDOS) - User's Manual (PDF). Mountain View, California, USA: Cromemco, Inc. November 1978. Part No. 023-0036. Archived from the original (PDF) on 2014-04-23. Retrieved 2014-04-23. (110+iv pages)
  11. ^ Cromemco CDOS Operating System - Instruction Manual (PDF). Mountain View, California, USA: Cromemco, Inc. June 1981 [1978]. Part No. 023-0036. Archived from the original (PDF) on 2014-05-19. Retrieved 2014-05-19. (viii+243+iii pages)
  12. ^ Cromemco Disk Operating System Series-2 CDOS - Instruction Manual - User's Manual (PDF). Mountain View, California, USA: Cromemco, Inc. February 1980 [1978]. Part No. 023-0036. Archived from the original (PDF) on 2015-03-06. Retrieved 2015-03-06. (144 pages)
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