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What is the degree of multiprogramming?(a) the number of processes executed per unit time(b) the number of processes in the ready queue(c) the number of processes in the I/O queue(d) the number of processes in memoryI got this question at a job interview.This interesting question is from Process Control Block topic in division Processes of Operating System

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Correct ANSWER is (d) the number of processes in memory

Best explanation: Multiprogramming means the number of processes are in the ready states. To increase utilization of CPU, Multiprogramming is ONE of the most important abilities of OS. Generally, a single process cannot use CPU or I/O at all TIME, whenever CPU or I/O is AVAILABLE ANOTHER process can use it. By doing this CPU utilization is increased.



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