Operating System (OS)
Scheduling is

None of these
allowing jobs to use the processor
not required in uniprocessor systems
the same regard-less of the purpose of the system
unrelated to performance consideration

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Operating System (OS)
The main function of the dispatcher (the portion of the process scheduler) is

assigning ready process to the CPU
suspending some of the processes when the CPU load is high
bring processes from the disk to the main memory
swapping a process to the disk
None of these

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