2 Science and Technology · 2.2.1 Computers, communication and Digital India

2.2.1.1 Computer and internet basics: hardware, software, WWW and protocols

A computer has hardware (CPU, memory, storage) run by software; the Internet is a network of networks using TCP/IP, and the World Wide Web, invented by Tim Berners-Lee, is a service on top of it.

  • APPSC Group 1
  • Advanced level
  • 5 min read
  • Full course

Key terms

  • CPU
  • RAM
  • ROM
  • operating system
  • generations of computers
  • Internet
  • WWW
  • Tim Berners-Lee
  • HTTP
  • TCP/IP
  • IP address
  • DNS
  • ARPANET
  • Linux

What this note covers

  1. Core factsFoundation
  2. ExplainedStandard
  3. DeeperAdvanced
  4. Mains writingMains writing
  5. Common trapsFoundation
  6. Quick revisionFoundation

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