Which of the following are principal components of the CPU of a computer system?

1.ALU (Arithmetic-Logic Unit)

2.CU (Control Unit)

3.Processor registers

4.SSD (Solid-State Drive)

5.VRAM (Video RAM)

A1, 2 & 4 only

B1, 2 & 3 only ✓ Correct

C3, 4 & 5 only

D2, 3 & 4 only

Correct answer: (B) 1, 2 & 3 only

Explanation

The principal components of a CPU are the ALU, the control unit and the processor registers.

Statement 1, the arithmetic-logic unit, performs calculations and logic operations inside the CPU.

Statement 2, the control unit, directs the flow of instructions within the CPU.

Statement 3, processor registers, are small fast stores inside the CPU.

An SSD is external storage, not a part of the CPU.

VRAM is memory on the graphics card, not a CPU component.

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