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Which of the register/s of the processor is/are connected to Memory Bus?

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Which of the register/s of the processor is/are connected to Memory Bus?

(a) PC

(b) MAR

(c) IR

(d) Both PC and MAR

This question was posed to me by my college director while I was bunking the class.

The origin of the question is Basic Operational Concept topic in portion Basic Structures of Computers of Computer Architecture

1 Answer

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The correct choice is (b) MAR

Explanation: MAR is connected to the memory BUS in order to access the memory.

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