CPU Utilization and Turn-Around Time Calculations
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Questions and Answers

What is the overall turnaround time for the five processes in the single processor computer system with non multi-programming?

  • 60 ms
  • 50 ms (correct)
  • 40 ms
  • 30 ms

    • How much time does each process spend on CPU bursts in the given scenario?

  • 1 ms
  • 4 ms
  • 3 ms
  • 2 ms (correct)

    • What is the CPU Utilization rate for the five processes in the single processor computer system without multi-programming?

  • 10%
  • 40%
  • 30%
  • 20% (correct)

    • If multi-programming is supported, how does the overall turnaround time for the five processes change compared to non multi-programming?

    <p>Remains the same</p> Signup and view all the answers

    What impact does the execution order of the processes have on CPU utilization rate in this scenario?

    <p>No impact</p> Signup and view all the answers

    What is the overall turnaround time for executing processes A, B, and C sequentially in a uniprogramming system?

    <p>32 ms</p> Signup and view all the answers

    If the order of execution of processes A, B, and C is changed from A C B to C A B in a uniprogramming system, how does this impact the CPU utilization rate?

    <p>It remains the same</p> Signup and view all the answers

    What is the CPU utilization rate in the context of executing processes A, B, and C sequentially in a uniprogramming system?

    <p>25%</p> Signup and view all the answers

    If the CPU bursts are reduced to 20% for each process instead of 25% in a uniprogramming system, how does this change affect the overall turnaround time?

    <p>It increases</p> Signup and view all the answers

    If the execution order is changed to B A C in a uniprogramming system, what impact does this have on the total time using the CPU compared to the original order (A C B)?

    <p>It remains the same</p> Signup and view all the answers

    What is the impact of multiprogramming on the overall turnaround time?

    <p>It becomes shorter due to overlapping CPU and IO operations.</p> Signup and view all the answers

    How does the OS handle the CPU utilization rate when executing multiple processes in a multi-programming scenario?

    <p>The OS schedules processes in a way that minimizes CPU idling.</p> Signup and view all the answers

    In the context of process execution, why is CPU burst significant?

    <p>It is the time a process spends executing on the CPU before performing IO.</p> Signup and view all the answers

    How does overlapping CPU and IO operations impact the turnaround time of processes?

    <p>It decreases the turnaround time by saving time during IO operations.</p> Signup and view all the answers

    If a process with a 2ms CPU burst follows a process with a 5ms CPU burst, how much time is saved during their execution?

    <p>$2ms$</p> Signup and view all the answers

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