INTRODUCTION TO INTERNET

Definition.......................................

Types............................................

Uses..............................................

Devices.........................................

History...........................................

Important Terms............................

 

Definition of Internet

  • Internet is known as “Interconnection of Computer Networks”

  • Computer Network is known as connection of group of Computers.

  • Globally millions of Computers and Computer Networks connected together to communicate through sharing data and media

     

     

  


Types of Network

LAN

Local Area Network – Computer Network setup within a Campus. eg. Computer lab of colleges 

MAN

Metropolitan Area Network – Network setup between difference Campuses situated within a metropolitan area . Eg – Bank transaction

WAN

Wide Area Network – Interconnection of different types of networks globally. Eg - internet

 

 

 

 

 

 

 Uses of Internet

  • Communication

  • Data Transmission

  • Education

  • Research Works 

     

     

Common Devices used in Networks

  • Hub.

  • Switch.

  • Router.

  • Bridge.

  • Gateway.

  • Modem.

  • Repeater.

  • Access Point.

     

    History 

1950s American defense proposed for world wide communication,effect of world wars

1960s research period invented packet switching
1970s research period development of protocols
1980s universities continued their research on network
1990s culture ,commercial and technology development
2000 almost common to all.

 

Common Terms 

 

Protocol – Set of Rules for Transmission

URL – Uniform Resource Locator (Address of the File)

Email – Electronic Mail

www – World Wide Web

Server – Provides services to Client

Client – Getting Service From the Server

 

 

   

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