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ICT Class 3 - Parts Of-Computer Notes

Comprehensive study notes for Class 3 - Parts Of-Computer olympiad preparation

Parts of Computer

Welcome to the chapter on Parts of Computer for Class 3. In this chapter, you will learn about the different parts that make up a computer. By the end of this chapter, you will be able to name and describe the main parts of a computer and understand how they work together!

Introduction

A computer is made up of many parts. Each part has a special job. When all the parts work together, the computer helps us do many things.

Main Parts of a Computer

  • Monitor: Looks like a TV. It shows pictures, words, and videos.
  • CPU (Central Processing Unit): The brain of the computer. It does all the thinking and work.
  • Keyboard: Has many keys. We use it to type letters, numbers, and symbols.
  • Mouse: A small device that helps us point, click, and select things on the screen.

Other Parts of a Computer

  • Speakers: Make sound and play music.
  • Printer: Prints pictures and words on paper.
  • Scanner: Copies pictures or words from paper into the computer.
  • Webcam: Takes photos and videos.

How Do These Parts Work Together?

  • We type on the keyboard and use the mouse to give instructions.
  • The CPU understands and works on these instructions.
  • The monitor shows us the result.
  • Speakers let us hear sounds and music.

Fun Activity: Draw and Label

Draw a computer and label its parts: monitor, CPU, keyboard, mouse, and speakers.

Summary

  • A computer has many parts.
  • Each part has a special job.
  • All parts work together to help us use the computer.

Practice Questions

  1. Name two main parts of a computer.
  2. What does the CPU do?
  3. Which part helps you type?
  4. What do speakers do?
  5. Which part shows pictures and videos?

Challenge Yourself

  • List three things you can do with a mouse.
  • Find out what a printer and a scanner do.

Did You Know?

  • The CPU is sometimes called the "brain" of the computer!
  • You can use a webcam to talk to friends far away.

Glossary

  • Monitor: The screen of the computer.
  • CPU: The main part that does all the work.
  • Keyboard: Used for typing.
  • Mouse: Used for pointing and clicking.

Answers to Practice Questions

  1. Monitor, CPU (any two: keyboard, mouse, etc.).
  2. It does all the thinking and work.
  3. Keyboard.
  4. Speakers make sound and play music.
  5. Monitor.

Computers have many parts. Learn their names and how they help you every day!

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