Discussion :: Operating System
- The instruction register
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A.
is a hardware memory device which denotes the location of the current instruction being executed. |
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B.
is a group of electrical circuits (hardware), that performs the intent of instructions fetched from memory. |
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C.
contains the address of the memory location that is to be read from or stored into. |
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D.
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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E.
None of the above |
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Answer : Option B
Explanation :
The instruction register is a group of electrical circuits (hardware), that performs the intent of instructions fetched from memory.
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