For the following set of processes, calculate (including the calculation steps) the average turnaround, average waiting time, and throughput (for the 1st 20 time units) for FCFS, Round-robin, SPN, SRT, and Feedback (q= 2i ). Present the Gantt chart for each of the defined schedules and assume that the time quantum is 2 units of time for the scheduling policies that are preemptive. Table 1 contains the arrival and service times of each process. [8] Table 1: Arrival and processing times of five processes