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RSX-11

This article is about the operating system family. For other uses of RSX, see RSX (disambiguation).
RSX-11
RSX-11M-Plus 4.6 running on the SIMH emulator.
DeveloperDigital Equipment Corporation
Written inMACRO-11, BLISS
Working stateDiscontinued
Source modelClosed source; kernel source code included
Initial release1972 (1972)
PlatformsPDP-11
InfluencedOpenVMS
Influenced byRSX-15
Default
user interface		DCL and MCR Command-line interface
LicenseProprietary

RSX-11 is a discontinued family of multi-user real-time operating systems for PDP-11 computers created by Digital Equipment Corporation. In widespread use through the late 1970s and early 1980s, RSX-11 was influential in the development of later operating systems such as VMS and Windows NT.

As the original Real-Time System Executive[1][2] name suggests, RSX was designed (and commonly used) for real time use, with process control a major use.[3][4] It was also popular for program development[5] and general computing.

  1. ^ "Real Time System Executive".
  2. ^ "User's Handbook Vol.1 Processor" (PDF). BitSavers.
  3. ^ William Y. Young; Donald P. Svrcek; Brent R. Mahoney (2014). "1: A Brief History of Control and Simulation". A Real Time Approach to Process Control (3 ed.). Chichester, West Sussex, United Kingdom: John Wiley & Sons Inc. pp. 1–2. ISBN 978-1-1199-9387-2.
  4. ^ "COMPAQ Software Product Description".
  5. ^ "AA-J302B-TC_Introduction_to_FEP_and_FRP_Aug82.pdf" (PDF). RSX-11 M/FEP and the FRP (FORTRAN Real-Time Package) ...

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