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Suppose two processes enter the ready queue with the following properties:

Suppose two processes enter the ready queue with the following properties:
Process 1 has a total of 8 units of work to perform, but after every 2 units
of work, it must perform 1 unit of I/O (So the completion time of this process is 12
units. Assume that there is no work to be done following the last I/O operation.
Process 2 has a total of 20 units of work to perform. This process arrives just
behind P1.
Show the resulting schedule for the shortest-job-first (preemptive) and the roundrobin
algorithms. Assume a time slice of 4 units for RR. What is the completion
time of each process under each algorithm?

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