ICT Class 5 - Computer Networks Notes
Comprehensive study notes for Class 5 - Computer Networks olympiad preparation
Computer Networks
Welcome to the chapter on Computer Networks for Class 5. In this chapter, you will learn what computer networks are, why they are important, and how computers connect and share information. By the end of this chapter, you will understand the basics of networks and how they help us communicate and work together!
Introduction
A computer network is a group of computers connected together so they can share information and resources. Networks help computers talk to each other and work faster.
Types of Computer Networks
- LAN (Local Area Network): Connects computers in a small area like a school or office.
- WAN (Wide Area Network): Connects computers over large distances, like between cities or countries.
- Internet: The biggest network in the world, connecting millions of computers everywhere.
Why Do We Use Computer Networks?
- To share files and information quickly.
- To use printers and other devices together.
- To send emails and messages.
- To play games and learn with friends.
How Do Computers Connect?
- Using wires (cables) or wireless signals (Wi-Fi).
- Through devices like routers and switches.
Fun Activity: Draw a Network!
Draw a picture showing computers connected in a network. Show how they share a printer or send messages to each other!
Summary
- Computer networks connect computers together.
- LAN is for small areas, WAN is for large areas, and the Internet connects the whole world.
- Networks help us share, learn, and communicate easily.
Practice Questions
- What is a computer network?
- Name two types of computer networks.
- How do computers connect in a network?
- Why do we use computer networks?
- What is the Internet?
Challenge Yourself
- List three things you can do using a computer network.
- Draw and label a simple LAN in your school.
Did You Know?
- The Internet started as a small network for scientists!
- Wi-Fi lets us connect to networks without wires.
Glossary
- Network: A group of computers connected together.
- LAN: Local Area Network.
- WAN: Wide Area Network.
- Internet: The largest network in the world.
- Router: A device that connects computers in a network.
Answers to Practice Questions
- A group of computers connected together to share information.
- LAN and WAN.
- Using wires or wireless signals (Wi-Fi).
- To share files, use devices, and communicate.
- The biggest network that connects computers all over the world.
Computer networks help us stay connected and share with others!