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NORD-OPS is a mass storage oriented operating system for the NORD-1, NORD-10 and NORD-5 computer systems. The main design objectives for NORD-OPS has been to make a modular, flexible and reliable operating system, which then should make it easy to use and utilize the NORD computers in their different configurations and environments.[1]

To reach these design objectives, it was for several reasons natural to base the operating system on the SINTRAN Monitor System:

  • SINTRAN is an advanced real-time multi-programming monitor that is especially designed for an easy extension to a general operating system.
  • SINTRAN will presumably make a basis for further development on real-time system for NORD-1, and a duplication of standard software should be avoided.

Thus, NORD-OPS is organized as a set of tasks running under SINTRAN, providing the user with the possibility of batch jobs and / or activities in "conversational mode" while they use SINTRAN for real time applications.


  1. Norsk Data Document ND–60.026.02 NORD-OPS REFERENCE MANUAL printed august 1973