By L. E. S. Green
Communications of the ACM,
Vol. 7 No. 11, Pages 678-681
The Toronto traffic-signal control system consists of a variety of logically distinct computer programs, all competing for machine time. To satisfy these demands, a time-sharing program has been written whose purpose is to execute, in the order of a predefined priority, the various subprograms within the real-time system. In this paper the more interesting aspects of the time-sharing program are outlined.
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