Tuesday, March 31, 2015

Introduction of Internet and Network

Internet


A means of connecting a computer to any other computer anywhere in the world via dedicated routers and serversWhen two computers are connected over the Internet, they can send and receive all kinds of information such as text, graphics, voice, video, and computer programs.

Network

A computer network is a group of computer systems and other computing hardware devices that are linked together through communication channels to facilitate communication and resource-sharing among a wide range of users. Networks are commonly categorized based on their characteristics.



Example of Network 



  • Personal area network, or PAN
  • Local area network, or LAN
  • Metropolitan area network, or MAN
  • Wide area network, or WAN

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