What is a local area network, is there any difference between a local area network and the Internet?

LAN is a network that uses multiple routes and network cables to connect computers in the same area, even if it is not linked to broadband, it can realize the sharing of resources in the network, but it cannot go to the Internet, chat QQ and the like. The Internet is a wide area network, that is, it must be connected to the outside world through broadband to share resources, things, movies, and so on.

To put it simply. A LAN is a simultaneous connection between several computers in your home.

The internet is a network where you can browse and so on.

A local area network (LAN) is a group of computers that are interconnected by multiple computers in a certain area. Generally, it is within a radius of several thousand meters. LAN enables functions such as file management, application software sharing, printer sharing, scheduling within workgroups, e-mail and fax communication services, and more.

A LAN is closed and can consist of two computers in an office or thousands of computers in a company.

A LAN is composed of network hardware (including network servers, network workstations, network printers, network cards, network interconnection devices, etc.) and network transmission media, as well as network software.

The Internet is a carrier of public information and a kind of mass media. It is fast and popular, and it is one of the most popular and popular media today. This mass media is faster than any previous kind of communication**.

LAN is a concept in the Internet, LAN refers to a computer group interconnected by multiple computers in a certain area, generally within a radius of several kilometers.

The Internet refers to the huge network of networks connected with each other at the beginning of the 21st century. These networks are connected by a number of standard network protocols, connecting billions of devices around the world, forming a logically single giant international network. Unlike the World Wide Web (www), the Internet comes with a wide range of information resources and services, peer-to-peer networking, file sharing, and IP** services.

The Internet (Internet), also known as the Internet, is an international computer network composed of wide area networks, metropolitan area networks, local area networks and stand-alone computers in accordance with certain communication protocols. The Internet refers to the result of linking two computers or two or more computer terminals, clients, and servers through the means of computer information technology, so that people can send emails to each other with friends who are thousands of miles away, complete a job together, and have fun together. At the same time, the Internet is also an important part of the Internet of Things, according to the definition of the China Internet of Things School-Enterprise Alliance, the Internet of Things is a combination of almost all current technologies and computer Internet technology, so that information can be collected, transmitted, processed and executed faster and more accurately.

Categories: Computer Networking.

Problem description: What kind of metaphor does the theory of unbelief and attack on the Min Theory, as long as it makes me understand clearly. It would be better to say more about its definition.

Analysis: LAN is a computer local area network, which is a computer communication network composed of various computers, peripherals, databases, etc. connected to each other within a local geographical range. LAN is an important part of the computer communication network, in addition to completing the communication of one station to another station, but also through the shared communication ** such as data communication network or dedicated data circuit, connected with the remote local area network, database or processing center, constituting a large-scale information processing system, its purpose is mainly in data communication and resource sharing.

LAN has the following characteristics:

1) The coverage area is generally within a few kilometers;

2) the use of a dedicated transmission medium to form a network, with transmission rates between 1 megabit second and 100 megabits second or higher;

3) multiple (generally between dozens and hundreds) devices share a transmission medium;

4) The layout of the network is relatively regular, and there are generally no switching nodes and routing problems in a single LAN;

5) The topology is mainly bus type and ring type.

LAN is currently widely used in office automation, production automation, and information processing systems.