Operating System (OS)
The Memory Address Register

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

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Operating System (OS)
Fork is

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

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Operating System (OS)
Which of the following is not a characteristic of a daisy chaining priority control scheme?

it is relatively easy to add more devices to the chain
the failure of one device may affect other devices on the chain
priority is programmable
the number of control lines is independent of the number of devices on the chain
None of these

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