Basics About Network

By Abhay M. Vachhani

Dec. 13, 2021, 9:33 p.m.

 

What is computer network?

• A network is a collection of a computers, printers, routers, switches, and other devices that are able to communicate with each other over some transmission media.

Types of network:

• LAN - Local Area Network
• MAN - Metropolitan Area Network
• WAN - Wide Area Network

 

Dec. 14, 2021, 9:45 A.M.

 

• LAN (Local Area Network):

  • A LAN is a group of computers and network communication devices within a limited geographical area, such as a building. There is no third party involvement.
  • High data transfer speed.
  • Generally less expensive technology.
  • Limited geographical area.

• MAN (Metropolitan Area Network):

  • Large network that connects different organizations.
  • Shares regional resources.
  • A network provides large level communications.
  • The network provides communication on a large scale.
  • Cost is higher than LAN.

• WAN (Wide Area Network):

  • A wide area network interconnects LANs.
  • It is not restricted to a particular geographic area. And may be inter connect around the world.
  • Third party network is involved.
  • Multiple interconnected LANs.
  • More expensive.
  • More sophisticated to important than LANs.
  • Less error resistance due to transmission travel distance.
    • Example:
      • Phone Lines
      • Satellites

What is networking?

• Networking is a process of communication between two or more remote party, that involves the connection of computers, media and networking devices.

Advantages of networking:

• Easy communication.
• File data and information sharing.
• Resource sharing.
• Increase storage capacity.
• Save time.

 

Connections between computers in a network are made using physical wires and cables.

However some connections are wireless using radio waves or infrared signals.