Parts of a Computer Chapter Notes - Computer Studies Class 1 ICSE PDF Download

Introduction

This chapter introduces young learners to the exciting world of computers! You will discover the main parts of a computer, understand what each part does, and learn about additional devices that can be connected to it. The chapter also explores how these parts work together and includes fun activities to help you remember the concepts.

Parts of a Computer

A computer has four main parts: monitor, CPU, keyboard, and mouse.

Monitor

• Resembles a television screen.
• Displays the work we do on a computer.
• Allows us to watch cartoons and movies.

Central Processing Unit (CPU)

• Known as the brain of the computer.
• Located inside the CPU box.
• Manages and controls other parts of the computer.

Keyboard

• Has many buttons called keys.
• Used to type letters, words, and numbers.
• Typing means pressing keys to write on a computer.
• Devices like mobile phones, calculators, and Casio also have keyboards with keys.

Did You Know?

• Typing refers to the pressing of keys on a keyboard to write on a computer.
• Devices like mobile phone, calculator and casio also have keyboard with many keys.

Mouse

• Shaped like a real mouse with a cable connecting it to the CPU.
• Has two or more buttons.
• Helps point at objects on the monitor using a pointer.
• Assists in drawing pictures and playing games on a computer.
• The first mouse was created by Douglas Engelbart.

Did You Know?

• The first mouse was made by Douglas Engelbart.
• Uninterruptible Power Supply (UPS) is used to keep a computer ON when the electricity goes off.

Additional Devices Connected to a Computer

There are some more devices which we find connected to a computer. Let's learn about these devices.

Printer

• Prints work done on a computer onto paper.
• The printed paper is called a printout or hard copy.

Scanner

• Reads text, images, and hand-drawn pictures from paper.
• Stores the scanned content in the computer.

Speakers

• Play music and sounds from the computer.
• Usually, two speakers are connected to a computer.
• Headphones can be used to listen to sounds privately.

Microphone

• Records our voice into the computer.
• Captures different sounds.
• Helps us talk to people through the computer.

Glossary

• Monitor: The screen that shows the work done on a computer.
• CPU: The main part that controls all other parts of a computer.
• Keyboard: A set of keys used to operate a computer.
• Mouse: A small device moved by hand to work on a computer.
• Printer: A machine that prints work done on a computer.
• Scanner: A device that copies text and pictures to store on a computer.
• Speaker: The part that produces sound from a computer.
• Microphone: A device used to record sounds.