Question: 1- What is the difference between Multiprogramming and Multicore, and how do they relate to each other? 2- Each process is represented in the operating

1- What is the difference between Multiprogramming and Multicore, and how do they relate to each other?
2- Each process is represented in the operating system by a process control block (PCB). What pieces of information does it contain? Why is it important?
3- Considering (FCFS) scheduling. Suppose that the processes arrive in the order: P2,P3,P1,PO PO PI P2 P3

4 -Illustrate the Critical section problem? And why it is problematic? What are the requirements for solving the critical section problem?

Considering (FCFS) scheduling. Suppose that the processes arrive in the order: P2,P3,P1,PO PO PI P2 P3 Process 25 17 5 10 Burst time What is the Gantt chart for the schedule? What is the awaiting time for each process P0.P1, P2,P3? What is the average time?

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