Solution

The correct answer is 1)(A) and (C) Only

EXPLANATION:

• (A) Program Counter (PC) keeps the track of next instruction executed. -
  • This statement is CORRECT. The Program Counter (PC) is a special-purpose register that holds the address of the next instruction to be executed in the sequence.
• (B) Instruction register holds the address of first instruction to be executed. -
  • This statement is NOT CORRECT. The Instruction Register (IR) holds the current instruction being executed, not the address of the first instruction.
• (C) Accumulator holds the output of ALU. -
  • This statement is CORRECT. The Accumulator is a special-purpose register that holds the intermediate results and the final result of arithmetic and logic operations performed by the ALU (Arithmetic Logic Unit).
• (D) Program Counter (PC) keeps the track of only first instruction of the program. -
  • This statement is NOT CORRECT. The Program Counter (PC) continuously keeps track of the address of the next instruction to be executed, not just the first instruction.