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Presentation/ Notes of Unit 3 Introduction to Computer Networks (XII Informatics Practices)

Unit 3: Introduction to Computer Networks

Gist of Lesson/Unit
  • Computer Networks
  • Types of Network – LAN, MAN, WAN
  • Network Devices – Hub, switch, repeater, router, gateway
  • Network Topologies – Star, Bus, Tree, Mesh
  • Introduction to Internet, URL, WWW and its application – Web, email, Chat, VoIP
  • Website: Introduction, difference between a website and webpage, static vs dynamic web page, web server and hosting of a website.
  • Web Browsers: Introduction, commonly used browsers, browser settings, add-ons and plug-ins, cookies.

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