Operating System (OS)
Fork is

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

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Operating System (OS)
The Memory Address Register

contains the address of the memory location that is to be read from or stored into.
None of these
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.
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".

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Operating System (OS)
Process is

a program in execution
program in High level language kept on disk
None of these
contents of main memory
a job in secondary memory

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