What is Internet?
https://www.computersprofessor.com/2016/05/what-is-internet.html
Connecting the computer together with
some communication, medium is called computer network. The need for computer
networking is
1) Communication
2) Data sharing
3) Sharing of hardware
4) Sharing of software
There are mainly 3 types of networks:
1) Local area network (LAN)
2) Wide area network (WAN)
3) Metropolitan area network (MAN) or
campus area network (CAW).
Local area network: - Connecting the computers together
that area located with in a small geographical area within the kilometers is
called local area network.
Ex:- The network used in offices and university computers
etc.
Wide area network: - Connecting the computers which are of
remote distance (1000 of kilometers) through tele communication system or
satellite is called WAN.
Ex: Public networks
WAN connects two or more Lan’s
together that is a company may have its head office in one city its branch
office is located at different locations of the country connect through WAN.
Metropolitan area network:- Metropolitan area network is a
network is smaller than wide area network is greater than local area network.
It usually covers one or two cities (less than 50 kms).
Ex: City cable network.