What are preemptive scheduling and time slicing and what is
the difference between them?
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Preemptive Scheduling is where one thread continues to
execute till such time its execution has completed or until
a thread of a higher priority comes into existence or the
priority of one of the waiting threads is increased.
Time Slicing is where each thread that is waiting to
execute will share the CPU time equally. One thread will
exeucte for n seconds or milliseconds, then go to the
waiting state again. the CPU scheduler will then determine
which of the other waiting threads will execute next.
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