What are some of the problems the operating system scheduler has to solve? i wit

Question

What are some of the problems the operating system scheduler has to solve? i with mainframes, the scheduler has to decide whether a batch job or an interactive user at a terminal should go next, and manage scarce CPU resource ii with personal computers, which run many programs at the same time, the scheduler needs to manage the scarce CPU with a more clever and efficient algorithm iii a key issue related to scheduling is when to make scheduling decisions, for example: when a process creates a new process should we run the parent or the child next, when a process blocks waiting on I/O, another process has to be selected to run, and so on iv giving each process a fair share of the CPU O i and ii O i, ii, and iv ii andiv

Explanation / Answer

Option "4" is the answer.(i.e, both iii and iv )

Explanation:

"Batch applications are processed on the mainframe without user interaction." So option "1" is false.

So it shouldn't be present in any of the options. So the answer is option "4" because there is no user interaction in the mainframes.

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