Data General RDOS

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RDOS
Closed source
Initial release1972; 52 years ago (1972)
Latest releaseRDOS 7.5 / 1986; 38 years ago (1986)
PlatformsNOVA, microNOVA, Eclipse
Kernel typeMonolithic
Default
user interface		Command-line interface
Licenserestricted, per machine

The Data General RDOS (Real-time Disk Operating System) is a real-time operating system released in 1970.[1] The software was bundled with the company's popular Nova and Eclipse minicomputers.[2]

Overview

RDOS is capable of

16-bit Eclipse minicomputer line.[3]

A cut-down version of RDOS, without real-time background and foreground capability but still capable of running multiple threads and multi-user Data General Business Basic, is called Data General Diskette Operating System[4] (DG-DOS or now—somewhat confusingly—simply DOS); another related operating system is RTOS, a Real-Time Operating System for diskless environments. RDOS on microNOVA-based "Micro Products" micro-minicomputers is sometimes called DG/RDOS.[5]

RDOS was superseded in the early 1980s by Data General's AOS family of operating systems, including AOS/VS and MP/AOS (MP/OS on smaller systems).

Commands

The following list of commands are supported by the RDOS/DOS CLI.[6]

  • ALGOL
  • APPEND
  • ASM
  • BASIC
  • BATCH
  • BOOT
  • BPUNCH
  • BUILD
  • CCONT
  • CDIR
  • CHAIN
  • CHATR
  • CHLAT
  • CLEAR
  • CLG
  • COPY
  • CPART
  • CRAND
  • CREATE
  • DEB
  • DELETE
  • DIR
  • DISK
  • DUMP
  • EDIT
  • ENDLOG
  • ENPAT
  • EQUIV
  • EXFG
  • FDUMP
  • FGND
  • FILCOM
  • FLOAD
  • FORT
  • FORTRAN
  • FPRINT
  • GDIR
  • GMEM
  • GSYS
  • GTOD
  • INIT
  • LDIR
  • LFE
  • LINK
  • LIST
  • LOAD
  • LOG
  • MAC
  • MCABOOT
  • MDIR
  • MEDIT
  • MESSAGE
  • MKABS
  • MKSAVE
  • MOVE
  • NSPEED
  • OEDIT
  • OVLDR
  • PATCH
  • POP
  • PRINT
  • PUNCH
  • RDOSSORT
  • RELEASE
  • RENAME
  • REPLACE
  • REV
  • RLDR
  • SAVE
  • SDAY
  • SEDIT
  • SMEM
  • SPDIS
  • SPEBL
  • SPEED
  • SPKILL
  • STOD
  • SYSGEN
  • TPRINT
  • TUOFF
  • TUON
  • TYPE
  • VFU
  • XFER

Antitrust lawsuit

In the late 1970s, Data General was sued (under the Sherman and Clayton antitrust acts)

Justices White and Blackmun would have heard it. The precedent set by the lower courts eventually forced Data General to license the operating system because restricting the software to only Data General's hardware was an illegal tying arrangement.[9]

In 1999, Data General was taken over by

EMC Corporation.[10]

References

  1. ^ The Electronic Engineer: EE. Chilton Company. 1969.
  2. ^ Computer Law Reporter. Computer Law Reporter Incorporated. 1986.
  3. ^ Sidney W. Frost; James C. Dunlap (1983). Automated law office systems: a survey of today's tools and techniques. West Pub. Co.
  4. ISSN 0010-4841
    .
  5. ^ Trade Cases. Commerce Clearing House. 1987.
  6. ^ RDOS/DOS Command Line Interpreter User's Manual
  7. ^ Santa Clara computer and high-technology law journal. 1986.
  8. ^ "In Re Data General Corp. Antitrust Litigation, 529 F. Supp. 801 (N.D. Cal. 1981)". Justia. Retrieved 26 December 2016.
  9. JSTOR 1372482
    .
  10. ISSN 0199-6649
    .

External links
Retrieved from "https://en.wikipedia.org/w/index.php?title=Data_General_RDOS&oldid=1175263653"