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WAN network

 Another option for theorists. WAN stands for Wide Area Network. A network that combines several other networks. Some theory can be taken from the following video:




For a brief understanding. There are usually 2 types of networks, but sometimes they try to add a third to them:


WAN - we read "VAN" - Wide Area Network - a global network - means the same all-encompassing Internet. Single world network.

LAN - read "LAN" - Local Area Network - local area network. The key here is closed. It could be home, it could be a huge enterprise with tens of thousands of computers and distribution all over the world. But not everyone has access here from the outside.

MAN - we read "MAN" - something intermediate and average - Metro Area Network - city network. The concept of "urban" is also blurred, I would think more about the provider's networks to understand it - when everyone does not completely see each other, but at the same time, when downloading from the provider's local file sharing services, the speed between the members of this non-global network is still higher, because in fact, it is the same large local area network, but with built-in filters.

Sometimes these networks are still classified by radius (sort of like MAN - 5-50 km), but nowadays this is already outdated nonsense - networks are different. It is necessary to classify them according to the understanding FOR WHAT they are created.


For students, the differences between WAN and LAN are relevant in this segment as well. Under the record:

Computer networks are the basis of communication in IT. They are used in a huge variety of ways and can include many different types of network.

The size of the network - the global one is not even limited by space, the local one is limited by its architect. In theory, it can also go into space, but it does not belong to the whole world and will always be smaller than the global one.

The number of machines is everyone who is connected to the Internet, members of the global network. Local networks are scattered, and in a single network there are always fewer of them.

Services. In a local network, folders and printers are rummaging around. In the global, everything is built on a client-server architecture - global routing, WWW, etc.

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