Cs3331 Concurrent Computing Exam 1 Solutions – Spring 2016 Cs3331 Concurrent Computing Exam 1 Solutions Spring 2016

@inproceedings{Cs3331CC,
  title={Cs3331 Concurrent Computing Exam 1 Solutions – Spring 2016 Cs3331 Concurrent Computing Exam 1 Solutions Spring 2016},
  author={}
}
    1. Basic Concepts (a) [10 points] Explain what are CPU modes. Explain their uses. How does the CPU know what mode it is in? There are three questions. Answer: The following has the answers. • CPU modes are operating modes of the CPU. Modern CPUs have two execution modes: the user mode and the supervisor (or system, kernel, privileged) mode, controlled by a mode bit. • The OS runs in the supervisor mode and all user programs run in the user mode. Some instructions that may do harm to the OS (e.g… CONTINUE READING
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