ICT Class 3 - General Information-About-Computers Notes
Comprehensive study notes for Class 3 - General Information-About-Computers olympiad preparation
General Information About Computers
Welcome to the chapter on General Information About Computers for Class 3. In this chapter, you will learn what computers are, how they work, and why they are important in our daily life. By the end of this chapter, you will know the basic parts of a computer and how computers help us at home, school, and work!
Introduction
A computer is an electronic machine that helps us do many things quickly and easily. Computers are used all over the world for learning, working, playing, and communicating.
What is a Computer?
- A computer is a smart machine that follows instructions.
- It can store, process, and show information.
- Computers work very fast and do not make mistakes.
Main Parts of a Computer
- Monitor: Looks like a TV and shows pictures, text, and videos.
- Keyboard: Used to type letters, numbers, and symbols.
- Mouse: Helps us point, click, and select things on the screen.
- CPU (Central Processing Unit): The brain of the computer.
- Speakers: Play sounds and music.
- Printer: Prints text and pictures on paper.
Uses of Computers
- Learning new things
- Playing games
- Watching videos and listening to music
- Drawing and coloring pictures
- Typing homework and projects
- Sending and receiving messages
- Solving sums and calculations
Fun Activity: Name the Parts!
Look at a computer in your school or home. Point to each part and say its name. Draw and label the parts of a computer in your notebook.
Summary
- A computer is a smart electronic machine.
- It has many parts like monitor, keyboard, mouse, and CPU.
- Computers help us learn, play, and work.
Practice Questions
- Name two main parts of a computer.
- What does a mouse do?
- Where do you see pictures and videos on a computer?
- What is the CPU called?
- List two uses of computers.
Challenge Yourself
- Draw a computer and label its parts.
- Write three sentences about how computers help you in school.
Did You Know?
- The first computers were very big and slow.
- Today, computers can fit in your hand as smartphones and tablets!
Glossary
- Monitor: The screen of the computer.
- Keyboard: Used to type.
- Mouse: Used to point and click.
- CPU: The brain of the computer.
Answers to Practice Questions
- Monitor, keyboard (any two: mouse, CPU, speakers, printer).
- It helps us point, click, and select things.
- On the monitor.
- The brain of the computer.
- Learning, playing games (any two: watching videos, drawing, typing, sending messages, solving sums).
Computers are amazing! Learn their parts and uses to become a computer expert.