Which of the following statements are correct? Principal components of a CPU…
2022
Which of the following statements are correct?
Principal components of a CPU in a computer include:
(A) The Solid State Drive (SSD) that stores data persistently, typically using flash memory.
(B) The Arithmetic-Logic Unit (ALU) that performs arithmetic and logic operations.
(C) Processor registers that supply operands to the ALU and store the results of ALU operation.
(D) The Control Unit (CU) that orchestrates the fetching (from memory), decoding and execution of instructions.
Choose the correct answer from the options given below:
Answer: B. B, C and D Only — ConceptA CPU is the part of a computer that executes instructions. Its core organization combines a data path—an arithmetic-logic unit and processor…
- A.
A, B and C Only
- B.
B, C and D Only
- C.
B and C Only
- D.
A and D Only
Attempted by 29 students.
Show answer & explanation
Correct answer: B
Concept
A CPU is the part of a computer that executes instructions. Its core organization combines a data path—an arithmetic-logic unit and processor registers—with control circuitry that sequences the fetch, decode, and execute cycle. Persistent secondary storage, such as an SSD, belongs to the wider computer system rather than to the CPU itself.
Application
Statement | Role in the system | Classification |
|---|---|---|
B | The arithmetic-logic unit performs arithmetic and logical operations. | Internal CPU computation unit |
C | Processor registers hold operands and intermediate or final results close to the arithmetic-logic unit. | Internal CPU storage |
D | The control unit directs instruction fetching, decoding, and execution. | Internal CPU control unit |
A | A solid-state drive retains files and data even when power is removed. | Persistent secondary storage outside the CPU core |
Cross-check
The standard processor block model consists of the arithmetic-logic unit, a register set, and the control unit. This independently selects statements B, C, and D, while excluding statement A.
Therefore, the correct combination is B, C and D only.