Wi-Fi, also known as "mobile hotspot" in Chinese, is the trademark of the manufacturer of the Wi-Fi alliance as a product brand certification, and it is a wireless LAN technology created in the IEEE 802. 1 1 standard. Based on the close relationship between the two systems, Wi-Fi is often regarded as synonymous with IEEE 802. 1 1 standard.
Wi-Fi can connect devices to the Internet or other devices, and realize the enjoyment and transmission of network resources. Wi-Fi technology is a standard based on IEEE 802. 1 1 protocol, which can provide high-speed data transmission services in a certain range. Wi-Fi technology has been widely used in families, enterprises, public places and other fields, and has become an indispensable part of modern network life.
Wireless network refers to the "wireless compatibility certification" in the field of wireless local area network, which is essentially a commercial certification and a wireless networking technology. In the past, computers were connected by network cables, while Wi-Fi was connected by radio waves.
Wireless router is common, so within the effective range of radio wave coverage of this wireless router, Wi-Fi connection can be used for networking. If a wireless router is connected to an ADSL line or other Internet access line, it is also called a hotspot.
Wireless Internet access can be simply understood as wireless Internet access. Almost all smartphones, tablets and laptops support Wi-Fi access, which is the most widely used wireless network transmission technology today. In fact, it is to convert wired network signals into wireless signals and use wireless routers to receive them from related computers, mobile phones and tablet computers that support its technology.
The main functions of Wi-Fi technology include:
1, high-speed transmission: Wi-Fi technology can provide high-speed data transmission service, and the highest transmission rate can reach 600Mbps, which is much higher than the traditional wired LAN.
2. Flexibility: Wi-Fi technology does not need wiring, and can connect to the network anytime and anywhere, which is very suitable for mobile devices.
3. Wide coverage: Wi-Fi signal coverage can reach hundreds of meters, which can meet the needs of families and enterprises.
4. Security: Wi-Fi technology provides a variety of security measures, such as WPA2 encryption and MAC address filtering, which can protect the security of network data.