Operating System (OS)
What is the name given to the software which can be legally compiled and often used for free?

Firmware program
Shareware program
None of these
Mindware
Public domain program

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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.
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.
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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