engineering computer science MCQ #249

engineering computer science MCQ #249

1. Question 1

   Q1. What is the purpose of the 'MAR' (Memory Address Register) in a computer system?

   • A) To store data being transferred between memory and CPU
   • B) To store the address of the memory location being accessed
   • C) To store the instruction being executed
   • D) To store the status of the CPU

   Answer: To store the address of the memory location being accessed

   Explanation: MAR holds the memory address of the data being accessed, facilitating data transfer between CPU and memory.