What is a LAN?

A local area network refers to a computer group composed of multiple computers interconnected in a certain area, usually within a radius of several kilometers; a local area network can realize file management, application software sharing, printer sharing, and schedules within a work group Scheduling, e-mail and fax communication services and other functions, and the LAN is closed.

Recommended: " Programming Video"

A local area network refers to a network within a certain area A computer group composed of multiple computers interconnected. Generally within a radius of several thousand meters. LAN can realize functions such as file management, application software sharing, printer sharing, scheduling within work groups, email and fax communication services, etc. A local area network is closed and can consist of two computers in an office or thousands of computers in a company.

A local area network is a computer that interconnects various computers, external devices, and databases within a local geographical scope (such as a school, factory, or institution), usually within a few kilometers. communication network. It can be connected to remote local area networks, databases or processing centers through data communication networks or dedicated data circuits to form a larger-scale information processing system.

Principle of LAN technology:

Wireless LAN is the product of the combination of computer network and wireless communication technology. From a professional perspective, wireless LAN uses an effective method of wireless multiple access channels to support communication between computers and provides the possibility for mobile, personalized and multimedia applications of communication. In layman's terms, wireless LAN provides the functions of Ethernet or token network without using traditional cables.

Usually, the transmission media of computer networking mainly relies on copper cables or optical cables to form a wired LAN. However, wired networks are subject to wiring restrictions in some situations: the amount of wiring and rewiring projects is large; the lines are easily damaged; and each node in the network cannot be moved.

When it is necessary to connect nodes that are far apart, the wiring construction of laying dedicated communication lines is difficult, expensive and time-consuming, forming a serious bottleneck for the rapidly expanding demand for networking. Wireless LAN emerged to solve the above problems of wired networks.

The above is the detailed content of What is a LAN?. For more information, please follow other related articles on the PHP Chinese website!