Operating System (OS)
The function(s) of the Storage Assignment is (are)

to assign storage to all variables referenced in the source program.
to assign storage to all temporary locations that are necessary for intermediate results.
None of these
to assign storage to literals, and to ensure that the storage is allocate and appropriate locations are initialized.
All of these

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Operating System (OS)
Swapping

None of these
allows many programs to use memory simultaneously
allows each program in turn to use the memory
does not work with overlaying
works best with many small partitions

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Operating System (OS)
The Memory Address Register

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 group of electrical circuits (hardware), that performs the intent of instructions fetched from memory.
is a hardware memory device which denotes the location of the current instruction being executed.
None of these
contains the address of the memory location that is to be read from or stored into.

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Operating System (OS)
A real time operating system is most likely to be used for which of the following task?

Ensuring that system clock works correctly on server
Managing the access to system files in a laptop computers
Controlling access to a shared printer in a network
Controlling the fuel injection system of an automobile engines

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