What LAN, Metropolitan Area Network, WAN, World Wide Web, Internet, Internet, Global Network,?

1 Wide Area Network (WAN [1]).

Also known as long-range network, the wide area network covers a large geographical range, which can range from tens of kilometers to tens of thousands of kilometers, across countries and continents, forming a global computer network.

2 Metropolitan Area Network (MAN[2]).

A metro network is a type of network that sits between a wide area network and a local area network. The geographical area covered is about a few tens of kilometers.

3 Local Area Network (LAN[3]).

The geographical scope of the LAN is generally less than 10 kilometers, and the computer network is formed by a department, a school, and a company.

There are many classification methods of computer networks, such as according to the transmission medium used by the network, which can be divided into twisted pair network, optical fiber network, wireless network, etc.; According to the network data transmission rate, it can be divided into bandwidth network and narrowband network; According to the topology of the network, it can be divided into bus network, star network, ring network, etc.

Let's put it this way, the network composed of various computers in a company is the local area network, if all the computers in a building are connected to a network, it is also a local area network, all the network connections in a city are called metropolitan area networks, and the distances are very long, even across continents and seas are called wide area networks, and the world wide Web, the Internet, the Internet, and the global network all refer to a wide range of remote connection networks, that is, these can be local area networks, metropolitan area networks, or wide area networks. But they are not necessarily connected.

The local area network (LAN) is the smallest, and its resources need to be within the network to be accessible, such as the FTP site of the campus network;

The Metropolitan Area Network (MAN) is in the center, and resources need to be authenticated online before they can be accessed.

Wide Area Networks (WANs) are the largest, open and connected;

The World Wide Web, the Internet, the Internet, and the Global Web all mean the same thing, which is the network interconnection system around the world.

The Internet is a wide area network.

The relationship between the three is as follows:

The Internet (a.k.a.: Internet) and the World Wide Web are both wide area networks, and the World Wide Web is built on the basis of the Internet (a.k.a. Internet).

The World Wide Web (www) is a service of the Internet (Internet), and the Internet is a type of wide area network (WLAN).

4 people in your dormitory play Dota 2v2, this is called LAN, you open a black store together to fight classmates in another city 4v4, this is WAN, if you find 10 people from all over the world to play 5v5, this is the Internet.

Metro: It is a network within a city. LAN: A network in the same place.

Ethernet Internet and the Internet are the same level of designation, Ethernet was the first LAN system designed by Xerox in 1973 at the Palo Alto Research Center (PARC) of Xerox Corporation. The name ethernet is a combination of the words ether and network.

According to the length of the communication distance between computers in the network, it can be divided into local area network, metropolitan area network and wide area network. The communication distance between computers in the network is generally called a local area network (LAN), and the distance beyond this distance is called a wide area network (WAN). A metropolitan area network (MAN) refers to a city-wide computer network.

The size of the territory spanned is the scale of this classification, but more importantly, the linking technology used varies with the distance.

Today's world-famous Internet is formed by the interconnection of various computer networks distributed around the world.

Ethernet refers to a kind of network technology, the Internet is the global network Internet wide area network is a kind of remote computer network used to realize the interconnection of local area network or metropolitan area network in different regions, and can provide computer communication between different regions, cities and countries. A metropolitan area network is a network between one city and another.