Components of a Computer System Class 6 MCQs
Components of a Computer System – Class 6 MCQs with Answers & Explanations
Class: 6
Subject: Computer Science
Section: Computer System Components
Topic: Components of a Computer System
Board: CBSE (Based on NCERT Syllabus)
Subject: Computer Science
Section: Computer System Components
Topic: Components of a Computer System
Board: CBSE (Based on NCERT Syllabus)
1. A computer system mainly consists of ______ components.
Answer: B. Three
The three main components are Input Unit, Processing Unit (CPU), and Output Unit.
2. The brain of the computer is called ______.
Answer: B. CPU
CPU processes data and controls all operations.
3. CPU stands for ______.
Answer: A. Central Processing Unit
It performs calculations and decision-making tasks.
4. Which unit is used to enter data?
Answer: B. Input Unit
Devices like keyboard and mouse send data into the computer.
5. Monitor is an ______ device.
Answer: B. Output
It displays information visually.
6. Keyboard is an ______ device.
Answer: A. Input
It is used to type data and commands.
7. The device that prints output is ______.
Answer: B. Printer
Printer produces hard copy output.
8. Speakers produce ______ output.
Answer: B. Audio
They convert signals into sound.
9. The processing unit performs ______.
Answer: A. Calculations
CPU processes instructions and data.
10. Which is not an input device?
Answer: C. Monitor
Monitor is an output device.
11. Scanner is used to ______.
Answer: B. Input images
It converts hard copy to digital form.
12. CPU has ______ main parts.
Answer: B. Two
ALU and Control Unit.
13. ALU stands for ______.
Answer: A. Arithmetic Logic Unit
Performs calculations and logic.
14. Control Unit ______ operations.
Answer: A. Controls
Directs all activities.
15. Hard disk is a ______ device.
Answer: B. Storage
Stores data permanently.
16. RAM is ______ memory.
Answer: A. Temporary
Data is lost when power is off.
17. Which shows soft copy?
Answer: B. Monitor
Soft copy appears on screen.
18. Storage unit stores ______.
Answer: A. Data
For future use.
19. Mouse is a ______ device.
Answer: A. Input
Used for pointing and clicking.
20. IPO cycle stands for ______.
Answer: A. Input-Process-Output
It explains how computers work.
