Question

_______ register in a PC holds the address of the location to be accessed.
1. Memory address
2. Memory program
3. Memory execution
4. Memory data

Answer 1

Correct Answer - Option 1 : Memory address

Explanation:

Memory Address Register

• The MAR is a special type of register that contains the memory address of the data and instruction.
• The main task of the MAR is to access instruction and data from memory in the execution phase

Index Register 

• The Index Register is the hardware element that holds the number.
• The number adds to the computer instruction's address to create an effective address.

​Program Counter

• Program Counter (PC) holds the address of the memory location of the next instruction, which is to be fetched after the current instruction is completed.