Computer Network

Simply speaking, a computer network is a set of connected devices.

Types of computer networks by scope

This is the smallest and most basic network that you'll find. It's meant to cover a very small area.

A PAN is most commonly used for one individual and to connect just a handful of devices such as a computer, smart phone, and printer.

PANs typically do not include Routers, since the network scope is very small, with a small device count.

Common examples include:

a LAN connects a group of computers or devices together across a local area.

This type of network can be utilized to connect devices throughout one building or even 2-3 buildings depending on the proximity to each other.

Common examples include:

Note

The wireless counterpart of a LAN is called WLAN (Wireless Local Area Network)

MAN connects multiple LANs together and spans an entire geographical area.

Ownership and management can be handled by a single person, but it's more likely done by a larger company or organization.

Common examples include:

WAN connects multiple devices across an even larger area, up until the whole globe.

WAN is so wide, it requires multiple organizations to manage and handle the network.

A common example of WAN is the Internet.