COMPUTER NETWORKS

We use computer networks all the time without realizing it. Every time we use the internet,
we are actually using the world’s largest network. So what is a network? a computer network is
simply two or more computers that are connected via software and hardware so that they can
communicate with each other. Communication network are formed form the interconnection of a
number of different locations through communication facilities. Devices connected to a network
are called nodes. A node can be a computer, a peripheral (printer), or a communication device
(modem).
Some of the common computer networks are Local Area Network (LAN), Wide Area
Network (WAN), Metropolitan Area Network (MAN), Virtual Private Network (VPN), Intranet
and Internet.
The main function for most networks is to facilitate information sharing, but networks also
allow users to share peripherals, broadband internet connection etc.