Networking through a computer perspective is a group of two or more computer systems that are linked together. Such as these are as follows:

LANs (Local Area Network)- The computers are geologically close together(that is, in the same building)
WAN(Wide Area Network)- The computers are farther apart and are connected by telephone lines or radio waves.
MANs(Metropolitan Area Network)- A data network designed in town or city.
CANs(Campus Area Network)- A network based inside the campus.
HANs(Home Area Network)- A network contained in a users home.