1. Perform the Round-Robin dispatch algorithm, with time quantum equal to 300 milliseconds, on the job queue and calculate:

Job 1 arrives at time 0 and needs 500 milliseconds to complete.

Job 2 arrives at time 300 milliseconds and needs 400 milliseconds to complete.

Job 3 arrives at time 400 milliseconds and needs 200 milliseconds to complete.

Job 4 arrives at time 400 milliseconds and needs 500 milliseconds to complete.

a. The average wait time. (Hint: average the number milliseconds each job was in a wait state)

b. Average turn-around-time. (Hint: for each job, count the number of milliseconds from arrival to completion and average)

2. How many 512 byte blocks are required to store a 1.6MB file?

Please make it clear and earlier.