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Which of the following is an example of a real time operating system?

  • A.Lynx
  • B.MS DOS
  • C.Windows XP
  • D.Process Control

Answer: D

Correct answer: Process Control

A process control system is real-time: it must respond to sensor readings within a deadline set by the plant it controls, since a late correction is useless. MS-DOS, Windows XP and Lynx’s desktop products aim at convenience and throughput, with no guaranteed response time.

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