Special Real Time Operating System (SRTOS) is a discontinued
IBM real time operating system, originally designed for use in the
electricity industry, but later also applied in other areas of industrial
process control
An industrial process control in continuous production processes is a discipline that uses industrial control systems to achieve a production level of consistency, economy and safety which could not be achieved purely by human manual control. I ...
.
[Advances in Instrumentation: Proceedings of the ISA International Conference and Exhibit, Volume 43, Parts 1-4, Instrument Society of America, 1988, p. 104] It formed part of the Realtime Plant Management System (RPMS) and Advanced Control System (ACS).
[ IBM]
ADVANCED CONTROL SYSTEM VERSION 2 AND REALTIME PLANT MANAGEMENT SYSTEM
ZP86-0320, September 2, 1986 Rather than a standalone operating system, it was designed as an extension to the
OS/VS1 and
OS/VS2 (later
MVS) operating systems.
It was also used in the paper industry.
[TAPPI Journal (Technical Association of the Pulp and Paper Industry), 1991, p. 270] SRTOS was originally released in 1976,
and though no longer supported as a program product, it is currently used as part of several ACS and RPMS installations worldwide.
References
{{IBM operating systems
IBM mainframe operating systems