Operating System (OS)
Object code

is ready to execute
must be rewritten before execution
is the output of compilers, but not assemblers
None of these
must be "loaded" before execution

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Operating System (OS)
Addressing modes

None of these
defines the fundamental method of determining effective operand addresses
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.

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Operating System (OS)
Scheduling is

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

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