LAN
Local Area Network (abbreviation: LAN)
The coverage of a local area network is generally within a few kilometers, and its features such as convenient installation, cost saving, and convenient expansion make it widely used in various offices. The local area network can realize file management, application software sharing, printer sharing and other functions. During the use process, by maintaining the network security of the local area network, it can effectively protect the data security and ensure the normal and stable operation of the local area network.
VAN
Wide Area Network (English: Wide Area Network, abbreviated as WAN)
Also known as wide area network, external network, and public network. It is a long-distance network that connects local area networks or metropolitan area network computers in different areas. It usually bridges a large physical area, covering a range from tens of kilometers to thousands of kilometers. It can connect multiple regions, cities and countries, or span several continents and provide long-distance communications, forming an international Remote network. The WAN is not the same as the Internet.
Wi-Fi
WIFI generally refers to Wi-Fi (wireless communication technology)
Wi-Fi, also known as "mobile hotspot" in Chinese, is a trademark of the manufacturer of the Wi-Fi Alliance as a product brand certification. It is a wireless local area network technology created in the IEEE 802.11 standard. Based on the close correlation between the two systems, Wi-Fi is often used as a synonymous term for the IEEE 802.11 standard. "Wi-Fi" is often written as "WiFi" or "Wifi", but they are not recognized by the Wi-Fi Alliance.
WLAN
WLAN generally refers to wireless local area network
WLAN is the abbreviation of Wireless Local Area Network
WLAN is the abbreviation of Wireless Local Area Network, which refers to the application of wireless communication technology to interconnect computer equipment to form a network system that can communicate with each other and realize resource sharing. The essential feature of a wireless local area network is that it no longer uses a communication cable to connect the computer to the network, but connects it wirelessly, which makes the construction of the network and the movement of the terminal more flexible.