Discussion
In case of multiprogramming the degree is defined as :
Answer: D
The degree of multiprogramming is the number of processes in memory.
Multiprogramming keeps several processes in main memory at once so that the CPU can switch to another when one waits for I/O. The degree of multiprogramming is the number of processes resident in memory, and it is controlled by the long-term scheduler, which decides how many jobs to admit.
The number in the ready queue or in an I/O queue is only part of the processes in memory at any moment, and the number of processes executed per unit time is throughput, not the degree of multiprogramming.
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