Operating System (OS)
Operating system is

All of these
None of these
A collection of software routines
A collection of input-output devices
A collection of hardware components

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Operating System (OS)
Addressing structure

performs indicated operations on two fast registers of the machine and leave the result in one of the registers.
defines the fundamental method of determining effective operand addresses
None of these
All of these
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)
A relocate program form is one which

consists of a program and relevant information for its relocation.
can itself performs the relocation of its address-sensitive portions.
cannot be made to execute in any area of storage other than the one designated for it at the time of its coding or translation.
All of these
None of these

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Operating System (OS)
Scheduling is

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

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