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ICT Class 10 - Networking Notes

Comprehensive study notes for Class 10 - Networking olympiad preparation

Networking

Welcome to the chapter on Networking for Class 10. In this chapter, you will learn what computer networks are, why they are important, the different types of networks, and how data is shared between computers. By the end of this chapter, you will understand the basics of networking and its applications in the real world.

Introduction to Networking

Networking means connecting two or more computers so that they can share information and resources. Networks help us communicate, share files, and use devices like printers together.

Types of Networks

  • LAN (Local Area Network): Connects computers in a small area like a school, office, or home.
  • WAN (Wide Area Network): Connects computers over large distances, like cities or countries. The Internet is the biggest WAN.
  • MAN (Metropolitan Area Network): Covers a city or a large campus.
  • Wireless Networks: Use Wi-Fi or Bluetooth to connect devices without wires.

Network Devices

  • Router: Connects different networks and directs data.
  • Switch: Connects devices in a network and sends data to the correct device.
  • Hub: Connects multiple computers in a network but sends data to all devices.
  • Modem: Connects a network to the Internet.

How Data Travels in a Network

  • Data is broken into small pieces called packets.
  • Packets travel through cables or wirelessly to reach the correct computer.
  • Protocols like TCP/IP help computers understand and send data.

Advantages of Networking

  • Share files, folders, and software easily.
  • Share hardware like printers and scanners.
  • Communicate quickly using email and chat.
  • Access the Internet and online resources.

Network Security

  • Use passwords to protect data.
  • Install antivirus software to stop viruses.
  • Firewalls help block unwanted access.
  • Do not share personal information with strangers online.

Practice Questions

  1. What is a computer network?
  2. Name two types of networks and where they are used.
  3. What does a router do?
  4. Why is network security important?
  5. What is the difference between LAN and WAN?

Challenge Yourself

  • Draw a diagram of a simple LAN in your school computer lab.
  • List three ways to keep your network safe.

Did You Know?

  • The Internet connects millions of computers all over the world!
  • Wi-Fi lets you connect to a network without any wires.

Glossary

  • Network: A group of computers connected together.
  • Router: A device that connects networks and directs data.
  • Packet: A small piece of data sent over a network.
  • Protocol: A set of rules for sending data.

Answers to Practice Questions

  1. A computer network is a group of computers connected to share information and resources.
  2. LAN (used in schools, offices), WAN (used to connect cities or countries).
  3. A router connects different networks and directs data to the right place.
  4. Network security keeps our data safe from hackers and viruses.
  5. LAN covers a small area; WAN covers a large area like cities or countries.

Networking connects the world! Learn more to use networks safely and smartly.

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