Real-time systems

  • Authors:
  • John A. Stankovic

  • Affiliations:
  • -

  • Venue:
  • Encyclopedia of Computer Science
  • Year:
  • 2003

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Abstract

Real-time systems are those systems in which the correctness of the system depends not only on the logical result of computation, but also on the time at which the results are produced (Stankovic, 1988). Real-time systems span a broad spectrum of complexity from very simple microcontrollers (such as a microprocessor controlling an automobile engine) to highly sophisticated, complex and distributed systems (such as air traffic control for continental USA). Other examples of real-time systems include command and control systems, process control systems, flight control systems, flexible manufacturing applications, intensive care monitoring, intelligent highway systems, and multimedia and high-speed communication systems (Buttazzo, 1997; Kopetz, 1997; Stankovic and Ramamritham, 1988, 1994).