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Internet and Web — Revision Notes

CBSE · Class 12 · Informatics Practices

Internet and Web revision notes for CBSE Class 12 Informatics Practices: 4 topics in quick points. Includes Computer Networks and Types of Networks.

60 questions80 flashcards5 concepts

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Key Topics to Revise

1

Computer Networks and Types of Networks

  • A network is a group of two or more similar things or people interconnected with each other.
  • A computer network is an interconnection among two or more computers or computing devices.
  • A network allows sharing of data and resources among connected devices.
2

Network Devices

  • Networking devices such as modem, hub, switch, repeater, router, and gateway are used to connect devices and manage communication.
  • Modem stands for MOdulator DEMolulator.
  • A modem converts digital data into analog signals at the sender end and analog signals into digital data at the receiver end.
3

Networking Topologies

  • The arrangement of computers and peripherals in a network is called topology.
  • Common network topologies are mesh, ring, bus, star, and tree or hybrid.
  • In mesh topology, each communicating device is connected with every other device.
4

Internet and World Wide Web

  • The Internet is a huge global network of interconnected computers that may or may not have any file or webpage to share.
  • The World Wide Web or web is a collection of interlinked web pages and web resources accessible over the Internet.
  • Many people confuse the web with the Internet.

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Full Notes

Key Concepts

A network is a groupLAN covers a small geographical areaModem stands for MOdulator DEMolulatorAn Ethernet cardA repeater is an analog device

Frequently Asked Questions

What are the important topics in Internet and Web for CBSE Class 12 Informatics Practices?
Key topics in Internet and Web include Computer Networks and Types of Networks, Network Devices, Networking Topologies, Internet and World Wide Web. Study these first, then practise questions on each for the CBSE Class 12 board exam.
How should I revise Internet and Web for the CBSE Class 12 board exam?
Learn the core ideas first, then work through the 60 practice questions on Internet and Web. Revise definitions regularly and use flashcards for quick recall before the exam.

Sources & Official References

Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.

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