CPU and Its Functions Class 6 MCQs
CPU and Its Functions – Class 6 MCQs
Class: 6 |
Subject: Computer Science |
Section: Computer System Components |
Topic: CPU and Its Functions
Based on: CBSE Board Examination Pattern (NCERT Syllabus)
Based on: CBSE Board Examination Pattern (NCERT Syllabus)
1. CPU stands for:
Answer: b) Central Processing Unit
Explanation: CPU is the main part of the computer that processes instructions and controls all operations.
Explanation: CPU is the main part of the computer that processes instructions and controls all operations.
2. CPU is known as the ______ of the computer.
Answer: b) Brain
Explanation: Like the human brain, CPU controls and processes all activities of the computer.
Explanation: Like the human brain, CPU controls and processes all activities of the computer.
3. CPU is located inside the:
Answer: c) CPU Cabinet
Explanation: The CPU chip is placed on the motherboard inside the computer cabinet.
Explanation: The CPU chip is placed on the motherboard inside the computer cabinet.
4. Which unit performs calculations?
Answer: a) ALU
Explanation: Arithmetic Logic Unit performs mathematical calculations and logical comparisons.
Explanation: Arithmetic Logic Unit performs mathematical calculations and logical comparisons.
5. CU stands for:
Answer: a) Control Unit
Explanation: Control Unit directs and manages all operations of the computer.
Explanation: Control Unit directs and manages all operations of the computer.
6. ALU performs:
Answer: b) Calculations
Explanation: It handles arithmetic and logical operations.
Explanation: It handles arithmetic and logical operations.
7. Control Unit controls:
Answer: b) Entire computer
Explanation: CU manages all hardware and software activities.
Explanation: CU manages all hardware and software activities.
8. CPU works with:
Answer: c) Both hardware & software
Explanation: CPU processes instructions from software using hardware.
Explanation: CPU processes instructions from software using hardware.
9. Which is part of CPU?
Answer: d) All of these
Explanation: CPU includes ALU, CU, and registers.
Explanation: CPU includes ALU, CU, and registers.
10. CPU processes:
Answer: d) All
Explanation: CPU converts data into useful information.
Explanation: CPU converts data into useful information.
11. Speed of CPU measured in:
Answer: b) Hertz
Explanation: It shows how many instructions CPU processes per second.
Explanation: It shows how many instructions CPU processes per second.
12. CPU controls:
Answer: d) All
Explanation: CPU manages entire system operations.
Explanation: CPU manages entire system operations.
13. Temporary storage in CPU:
Answer: a) Registers
Explanation: Registers store small amounts of data temporarily.
Explanation: Registers store small amounts of data temporarily.
14. CPU is mounted on:
Answer: a) Motherboard
Explanation: Motherboard connects all components including CPU.
Explanation: Motherboard connects all components including CPU.
15. Logical operations include:
Answer: b) Comparison
Explanation: Logic operations compare values (>, <, =).
Explanation: Logic operations compare values (>, <, =).
16. CPU fetches instructions from:
Answer: a) Memory
Explanation: Instructions are stored in memory before processing.
Explanation: Instructions are stored in memory before processing.
17. Which controls data flow?
Answer: b) CU
Explanation: Control Unit directs data movement.
Explanation: Control Unit directs data movement.
18. CPU performs operations in:
Answer: c) Microseconds
Explanation: CPU works extremely fast.
Explanation: CPU works extremely fast.
19. CPU requires ______ to work.
Answer: a) Instructions
Explanation: Programs provide instructions to CPU.
Explanation: Programs provide instructions to CPU.
20. Main function of CPU:
Answer: a) Processing data
Explanation: CPU converts raw data into meaningful information.
Explanation: CPU converts raw data into meaningful information.
