Operating System (OS)
Scheduling is

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

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Operating System (OS)
Addressing modes

None of these
All of these
performs indicated operations on two fast registers of the machine and leave the result in one of the registers.
are variations in the use of fundamental addressing structures, or some associated actions which are related to addressing.
defines the fundamental method of determining effective operand addresses

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