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DR-DOS

DR-DOS is a disk operating system for IBM PC compatibles, originally developed by Gary A. Kildall's Digital Research and derived from Concurrent PC DOS 6.0, which was an advanced successor of CP/M-86. Upon its introduction in 1988, it was the first operating system that attempted to be compatible with IBM PC DOS and MS-DOS.

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Available in
English, older versions also in German, French, Italian, Spanish, Japanese
Default user interface
Command-line interface (COMMAND.COM)
Developer
Digital Research · Novell · Caldera · DeviceLogics · Whitehorn Ltd. Co.
Initial release
May 28, 1988; 38 years ago (1988-05-28)
Kernel type
Monolithic kernel
Latest release
9.0.648 / May 2, 2026; 3 months ago (2026-05-02)

Topics to explore

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Overview

History

Controversies

Commands

  • TRUENAME
  • Internal Shell builtin
  • Commands Command (computing)
  • APPEND APPEND (DOS command)
  • BREAK BREAK (DOS command)
  • CD CD (DOS command)
  • CHCP CHCP (DOS command)
  • CHDIR CHDIR (DOS command)
  • CLS CLS (DOS command)
  • COPY COPY (DOS command)
  • CTTY CTTY (DOS command)
  • DATE DATE (DOS command)
  • DEL DEL (DOS command)
  • DELQ DELQ (DOS command)
  • DIR DIR (DOS command)
  • ERA ERA (DOS command)
  • ERAQ ERAQ (DOS command)
  • ERASE ERASE (DOS command)
  • EXIT EXIT (DOS command)
  • HILOAD HILOAD (DOS command)
  • IDLE IDLE (DOS command)
  • MD MD (DOS command)
  • MKDIR MKDIR (DOS command)
  • MORE MORE (DOS command)
  • PATH PATH (DOS command)
  • PROMPT PROMPT (DOS command)
  • RD RD (DOS command)
  • REN REN (DOS command)
  • RENAME RENAME (DOS command)
  • RMDIR RMDIR (DOS command)

Advanced semantic analysis

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Map overview Semantic statistics

DR-DOS

Nodes316
Edges315
Triples96
Avg. degree1.99
Density0.006329
Components1

How this topic connects Entity context

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DR-DOS

Top relations

related to After Novell · 18
DR-DOS → Between, Caldera, Caldera-owned DR-DOS, Canopy Group, Claimed, DOS, IBM's PC DOS, Immediately, January, July, Microsoft, Novell, November, OpenLinux, Salt Lake City, This, When Caldera, Windows
related to Later versions · 17
DR-DOS → Controversies, DeviceLogics, DPMI, DRDOS, FAT32, Flash, GPL, In, Inc, Lineo, Lineo's, March, OpenDOS, ROM, The, They, This
related to DR DOS 9.0 · 14
DR-DOS → April, Caldera, Co, DR DOS, EDR-DOS, FreeDOS, In January, In March, Intel, NASM, Registration, The, Whitehorn, Whitehorn Ltd
related to Controversies · 8
DR-DOS → After, DR DOS, Enhanced DR-DOS, FreeDOS, GNU General Public License, GPL, In October, Inc
Developer · 5
DR-DOS → Caldera, DeviceLogics, Digital Research, Novell, Whitehorn Ltd. Co.
related to External links · 3
DR-DOS → DOS Wiki, Enhanced DR-DOS/OpenDOS ProjectDR-DOS, Official
Available in · 1
DR-DOS → English, older versions also in German, French, Italian, Spanish, Japanese
Default user interface · 1
DR-DOS → Command-line interface (COMMAND.COM)
Initial release · 1
DR-DOS → May 28, 1988; 38 years ago (1988-05-28)
Kernel type · 1
DR-DOS → Monolithic kernel

Important terminology Word statistics

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Important terminology

dos dr novell digital version system research ms-dos pc support also caldera inc operating bdos new memory kernel internal versions

Entity relationships Subject–Predicate–Object triples

SubjectPredicateObjectConfidenceSrc
DR-DOSAvailable inEnglish, older versions also in German, French, Italian, Spanish, Japanese1.00infobox
DR-DOSDefault user interfaceCommand-line interface (COMMAND.COM)1.00infobox
DR-DOSDeveloperDigital Research1.00infobox
DR-DOSDeveloperNovell1.00infobox
DR-DOSDeveloperCaldera1.00infobox
DR-DOSDeveloperDeviceLogics1.00infobox
DR-DOSDeveloperWhitehorn Ltd. Co.1.00infobox
DR-DOSInitial releaseMay 28, 1988; 38 years ago (1988-05-28)1.00infobox
DR-DOSKernel typeMonolithic kernel1.00infobox
DR-DOSLatest release9.0.648 / May 2, 2026; 3 months ago (2026-05-02)1.00infobox
DR-DOSLicenseProprietary1.00infobox
DR-DOSOfficial websitedr-dos.com1.00infobox
DR-DOSOS familyDOS1.00infobox
DR-DOSSource modelMixed; primarily closed-source, some versions open-source1.00infobox
DR-DOSSupported platformsx861.00infobox
DR-DOSWorking stateIn active development1.00infobox
DR-DOSis adisk operating system for IBM PC compatibles0.90text

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    Min side: 3
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