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Anonymous users2024-02-071. Local area network.
A local area network (LAN) is a group of computers that are interconnected by multiple computers in a certain area. "An area" refers to the same office, the same building, the same company, the same school, etc., generally within a radius of several kilometers. LAN enables functions such as file management, application software sharing, printer sharing, scanner 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.
2. Wide Area Network.
A wide area network (WAN) is a collection of computer networks that span large and geographically specific areas. Often across provinces, cities, or even a country. A WAN consists of subnets of different sizes, which can be either LAN or small WAN.
3. The difference between a local area network and a wide area network.
The LAN is in a certain area, and the WAN spans a large area, so how to define this area? For example, if the head office of a large company is located in Beijing and its branches are spread all over the country, if the company connects all its branches together through the network, then one branch is a local area network, and the entire head office network is a wide area network.
Resources.
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Anonymous users2024-02-06A local area network is a local geographic area (e.g., a school, factory, or office) that connects all kinds of computers. A computer communication network consisting of external devices and databases that are connected to each other, referred to as a LAN. It can be connected with a remote local area network, database or processing center through a data communication network or a dedicated data circuit to form a large-scale information processing system.
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.
Virtual LAN: A network segment that connects many organizations.
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.
The concept of local area network:
There are many ways to communicate in the computer field. Some communication methods are used locally, such as SCSI equipment, and have a distance limit (5 meters). Other communication methods, such as two systems talking to each other over a network, can reach greater distances. >>>More
Yes, it's just that your machine can't be turned off.
The characteristics of the LAN are as follows:
The geographical area covered is smaller, generally 10m 10km (such as an office building, an enterprise, etc.), usually owned by a single unit. >>>More