Operating System (OS)
The dispatcher

is always small and simple
puts tasks in I/O wait
actually schedules the tasks into the processor
never changes task priorities
None of these

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Operating System (OS)
Round-robin scheduling

None of these
gives each task the same chance at the processor
allows interactive tasks quicker access to the processor
is quite complex to implement
allows processor-bound tasks more time in the processor

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Operating System (OS)
Scheduling is

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

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