" A computer network is a method for communication between different computers. "
Computer Network is a group of computers which are connected with each other in order to share information and resources.
There are many types of networks but they are broadly classifieds in three categories:
- Local Area Network ( LAN )
- Metropolitan Area Network ( MAN )
- Wide Area Network ( WAN )
- Local Area Network ( LAN )
Computer Network which is dedicated to share information and resources among several personal computers in a limited geographical area known as Local Area Networks (LAN). We can find such network at home, school, computer laboratory, office building, or closely positioned group of buildings. Here we have some diagrams of LAN network to understand it easily.
Image Courtesy: Wikipedia
2. Metropolitan Area Network (MAN)
Computer Network that usually spread across a campus or a city ia known as Metropolitan Area Network. Man connecting a campus or a city mostly uses Wireless communication or Fiber optical connections. For example, a university has a MAN that joins together many of their affiliated college’s LANs located cities. Communication in MAN between different LANs is done using microwave, radio, or infra-red communication.
3. Wide Area Network ( WAN )
Wide Area Network (WAN) covers a wide geographic area like state or country. Communication in a WAN is done by telephone line, satellites dishes, and radio waves to span a large geographic area.
