Operating System (OS)
The function(s) performed by the paging software is (are)

All of these
Management of the physical address space
Sharing and protection
Implementation of the access environment for all programs in the system
None of these

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Operating System (OS)
The instruction register

None of these
contains the address of the memory location that is to be read from or stored into.
contains a copy of the designated memory location specified by the MAR after a "read" or the new contents of the memory prior to a "write".
is a hardware memory device which denotes the location of the current instruction being executed.
is a group of electrical circuits (hardware), that performs the intent of instructions fetched from memory.

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Operating System (OS)
Fork is

the creation of a new job
None of these
increasing the priority of a task
the creation of a new process
the dispatching of a task

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