Question:

The sequence of events that happen during a typical fetch operation is:
(A) MAR
(B) IR
(C) MDR
(D) Memory
(E) PC
Choose the correct answer from the options given below:

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The sequence can be remembered as PC → MAR → Memory → MDR → IR.
Updated On: Dec 29, 2024
  • (E), (A), (C), (B), (D)
  • (E), (A), (D), (C), (B)
  • (A), (E), (C), (B), (D)
  • (E), (A), (C), (D), (B)
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The Correct Option is D

Solution and Explanation

During a typical fetch operation: 1. PC (Program Counter): Holds the address of the instruction to be fetched. 2. MAR (Memory Address Register): Receives the address from the PC. 3. Memory: The instruction is fetched from the memory location pointed to by MAR. 4. MDR (Memory Data Register): Holds the fetched instruction. 5. IR (Instruction Register): Stores the instruction for execution.
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