Operating System (OS)
Addressing modes

None 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
All of these

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Operating System (OS)
Round-robin scheduling

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

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Operating System (OS)
Scheduling is

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

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