A wide area network is basically a data network that is commonly used in connecting computers, it spans over a wide, global area. A wide area network is a complex system that connects 2 or more countries, states or cities or even continents and it is mostly used by big corporations or industries to exchange tons of data between them in a fast and very efficient way.
The communication capabilities of the wide area network offers even the smallest businesses an increase. The wide area network is not to be confused with the LAN networks, even though they serve the same purpose the wide area network is structured and operates in another way.
There are a lot of advantages of a wide area network, you can send a lot of documents including attachments, pictures and even audio under the form of messages. One of the biggest advantage of the wide area network is that you can share any device on it, like expensive printers and even phone lines, without having to buy different peripherals for each computer.