Technology Sharing

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WAN (Wide Area Network) and LAN (Local Area Network) are two different types of computer networks, which differ in coverage, purpose and technical implementation.

1. Coverage：

   • LAN: Usually covers a small geographic area, such as a home, office, or campus. Its range is usually between a few hundred meters to several kilometers.
   • WAN: Covers a large geographic area, which can span a city, country, or even the globe.

2. use：

   • LAN: Mainly used to connect computers and other devices in the same location so that resources (such as printers, file servers) and data can be shared.
   • WAN: Used to connect LANs in different locations, allowing users in remote locations to communicate and share resources.

3. Technical realization：

   • LAN: Usually uses Ethernet or Wi-Fi technology, with faster transmission speed and lower latency.
   • WAN: Uses a variety of technologies such as DSL, fiber optics, satellite communications, etc., with relatively slow transmission speeds and high latency.

4. Management and Ownership：

   • LAN: Usually owned and managed by a single organization or individual.
   • WAN: May be jointly owned and managed by multiple organizations, or provided and managed by a service provider.

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