Three CPU bound jobs A through C and one I/O bound job D arrive at a computer center at the times shown in the table below. All times in the table are in ms. lgnore context switches. The system follows the following rules: a. In the priority column higher numbers indicate higher priorities b. The I/0 bound job runs for 3ms of CPU time then prints a value, this pair of actions repeat until the job 3. finishes. The print hardware takes 2ms to print one value. d. c. The quanta for an I/O bound jobs is cumulative. Therefore: i. When an I/O bound job leaves the CPU the remaining time in its quanta is recorded ii. When an I/O bound job reenters the CPU after completing a write the length of the quanta given to it is the remaining time in the quanta recorded before the job left the CPU to enter the print queue When a job leaves the print queue it is placed in the ready queue e. i.lf the job is starting a new quanta it is placed at the end of the ready queue f. g. ii.If it is continuing an unfinished quanta it is placed at the front of the ready queue When a preempted job leaves the CPU it is placed at the front of the ready queue If two actions take place at the "same" time the order they are completed is i. place a newly arrived process in the queue i check the queues to see which process is loaded into the CPU next ii. place a process leaving the CPU into the ready queue or the print queue iv. place a process leaving the print queue into the ready queue h. Each process is allowed a quantum of 6 ms of CPU. At the end of the quantum the process will be placed at the end of the appropriate ready queue For CPU bound jobs this quantum will be used in one visit to the CPU II. For l/O bound jobs this quantum may be distributed over several visits to the CPU. Arrival time (msRunning Time (ms) 12 19 Process Priority 28 34 36 4 4 Determine the turnaround time for each process and the average turnaround time for all processes for each of the following scheduling algorithms. Explain how you arrived at your answers. In particular, your explanation should include a COMPLETE list of steps showing the order in which the processes execute. The duration of each step, and the elapsed time at the end of each step should be shown. The description may be presented as a bulleted list of steps OR a table, with one column per process and an entry for each step. b) 13 points] round-robin scheduling (with preemptive priorities). When a job arrives in the high priority queue, the running job is checked to see if it has a lower priority. If the running job has a lower priority it will be immediately replaced with the higher priority job