Objectives and functions of operating system


Question 1: Define the necessary properties of the given types of OS:

a) Batch
b) Interactive
c) Time sharing
d) Distributed
e) Real time

Question 2: Explain the Objectives and functions of Operating System. Also describe the different services given by the operating system.

Question 3: Describe various types of scheduling for uniprocessor system.

Question 4: Suppose the given are the jobs to execute with one processor:

1339_job priority.jpg

The jobs are supposed to have arrived in the order 1, 2, 3, 4, 5.

a) Give Gantt chart illustrating the execution of these jobs by using First-Come-First-Serve, Round-Robin (quantum = 1), Shortest process next, Shortest remaining time.

b) What is the turnaround time, waiting time of each job for each of the above scheduling algorithms? 

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Operating System: Objectives and functions of operating system
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