Operating system fundamentals UE Past Papers Questions.


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(896) Question Category: Short answers

Consider the following set of processes , with the length of the CPU burst given in milliseconds:

process burst time priority
p1 10 3
p2 1 1
p3 2 3
p4 1 4
p5 5 2

The processes are assumed to have arrived in the order p1, p2, p3, p4, p5 all at time 0.

  • Draw the Gantt charts that illustrate the execution of these processes using the following algorithms: FCFS (First come first served), Priority (a smaller priority number implies a higher priority)
  • Calculating average time of completion by using FCFS.

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(1211) Question Category: Short answers

What is context switching with respect to process states?

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(1212) Question Category: Short answers

What is the differnce between multiprocessing and multiprogramming ?

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(1215) Question Category: Short answers

What is the difference between real time and timesharing system?

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(1321) Question Category: Short answers

What is UNIX operating system?

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