Computer Science · Class 3
Input and Output Devices
Learn Input and Output Devices with notes, examples, and practice questions.
3 sections15–25 min read6 MCQs · 2 examples
Chapter Overview
Input and Output Devices introduces essential computer concepts for Class 3 — hardware, software, and practical skills for exams and daily use.
Input
- Keyboard, mouse, scanner, mic
- Touchscreen as dual device
Output
- Monitor, printer, speakers
- Plotter for large drawings
Solved Examples
Step-by-step solutions — read each step before checking the final answer.
Example 1
Classify joystick, projector, webcam.
- 1Identify given information
- 2Apply the concept
- 3State conclusion
Answer
See Input and Output Devices concepts above.
Example 2
Why is touchscreen both input and output?
- 1Identify given information
- 2Apply the concept
- 3State conclusion
Answer
See Input and Output Devices concepts above.
Key Points to Remember
- ✓ Keyboard, mouse, scanner, mic
- ✓ Touchscreen as dual device
- ✓ Monitor, printer, speakers
- ✓ Plotter for large drawings
Exam Tips
- • Revise Input and Output Devices definitions
- • Draw diagrams where applicable
- • Practice MCQs after examples
Practice MCQs — Input and Output Devices
Test your understanding with topic-wise multiple choice questions. Explanations appear after each answer.
Question 1 of 6Score: 0/0
Input and Output Devices mainly teaches: