Question: One reason for using a quantum to interrupt a running process after a reasonable period is to allow the operating system to regain the processor

One reason for using a quantum to interrupt a running process after a reasonable period is to allow the operating system to regain the processor and dispatch the next process. Suppose that a system does not have an interrupting clock and the only way a process can lose the processor is to relinquish it voluntarily. Suppose also that no dispatching mechanism is provided in the operating system.

a. Describe how a group of user processes could cooperate among themselves to effect a user-controlled dispatching mechanism.

b. What potential dangers are inherent in this scheme?

c. What are the advantages to the users over a system-controlled dispatching mechanism?

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