Computer Networks

1. What is a Computer Network?

- It is a set of computers connected together for sharing resources as the main purpose.
The Internet itself can be considered as a Computer Network.

                               http://cdn.yourarticlelibrary.com/wp-content/uploads/2013/12/b846.jpg


2. Kinds of Computer Network
-  Computer Network is mainly of four types: 

• LAN(Local Area Network) ex: Building, Office
  
• http://www.am7s.com/wp-content/uploads/2019/04/lan.jpg

• PAN(Personal Area Network) ex: arranged within an individual person( range of up to 10 meters), Small Home Office
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• https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEitUT3Je60_KbXcjVTiQeMfbLLJrx95ZYB-JvzkeuS94BBEOmybgjxwheS80EfeSzpYqIJOjE056zLtrwPLYazH1Ik891G8VM7IaN_QZAQ2KewRFdngtf4i3j6WjbphWb5ysv5ZewEPleBl/s640/image4.png

• MAN(Metropolitan Area Network) ex: Government agencies, Airline Reservation
  
  
  
  https://static.javatpoint.com/tutorial/computer-network/images/metropolitan-area-network.png

• WAN(Wide Area Network) ex: Internet, states or countries, Mobile Broadband
  
• https://i2.wp.com/computernetworktopology.com/wp-content/uploads/2019/05/Slide5.jpg?resize=688%2C610&ssl=1

3. An example of a Computer Network

INTERNET