PEARL Operating System

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PEARL Operating System ( POS ) is a real-time operating system for industrial applications, which was developed and sold between 1975 and 1995 by Brown, Boveri & Cie (BBC).

use

The system was used on PDP-11 computers from Digital Equipment Corporation and was completely coded in MACRO-11 assembler . The BBC control system BECOS28 (or also called B28) for the control and monitoring of electrical, gas, district heating or water processes ran on this operating system .

literature

  • Wilfried Gerth, Karl-Heinz Niemann: A real-time operating system for PEARL . In: VMEbus . tape 3 , no. 5 , 1989, pp. 81-83 .
  • Karl-Heinz Niemann: A uniform PEARL programming system from PC to multiprocessor . In: Personal Realtime Computing '88 (=  Personal Realtime Computing: Lectures at the symposium ). Markt & Technik, Haar 1988, p. 57-69 .