It is defined as two or more computers connected to share resources. It refers to any interconnected group or system that shares information.
PAN
PersonalAreNetwork
Personal Are Network
composed of personal devices like a cellphone and notebook computer, communicating at close range at least about 20-30 feet
LAN
Local Are Network
LocalAreaNetwork
It is used for workstations, servers, printers, and other devices to communicate and share resources and covers a small local area such as office, home, other building, or small group of building.
WLAN
WirelessLocalAreaNetwork
WirelessLAN
covers a limited geographical are and other places where networking cables are difficult to install, such as outdoors, in public places, and in homes that are not wired for networks.
CAN
CampusAreaNetwork
CampusAreaNetwork
A network made up of an interconnection of local area network within a limited geographical area. It is also a form of a metropolitan area network, specific to an academic setting.
MAN
MetropolitanAreaNetwork
MetropolitanAreaNetwork
A network that can cover a large campus or city.
WAN
WideAreaNetwork
Wide Area Network
It is made up of many smaller networks and covers a large geographical area.
GAN
Global Area Network
Global Area Network
It is no common definition and its specification is in development by several groups.
VPN
Virtual Private Network
Virtual Private Network
A computer network in which some of the links between nodes are carried by open conncetions or virtual circuits in some larger network instead of by phisical wires.