Operating System (OS)
Which type of command requires additional files to perform specific operations?

Primary commands
Valuable commands
External commands
Internal commands

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Operating System (OS)
Object code

must be rewritten before execution
is ready to execute
is the output of compilers, but not assemblers
must be "loaded" before execution
None of these

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Operating System (OS)
The instruction 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 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.
None of these
contains the address of the memory location that is to be read from or stored into.

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