Which of the following CPU registers is used to store values for ALU operations?
2016
Which of the following CPU registers is used to store values for ALU operations?
- A.
Accumulator
- B.
Program counter
- C.
Index register
- D.
Instruction register
Attempted by 174 students.
Show answer & explanation
Correct answer: A
The correct option is A (Accumulator). The Accumulator (AC) is a primary register inside the CPU's ALU. It acts as a temporary holding buffer to store data operands before an ALU operation and instantly captures the resulting output generated by arithmetic or logical execution.