Wi-Fi (wireless fidelity), also known as "action hotspot", is a wireless LAN technology created in IEEE 802. 1 1 standard. Based on the close relationship between the two systems, some people regard Wi-Fi as a synonym for IEEE 802. 1 1 standard.
Main functions:
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, as introduced at the beginning, using wireless routers to receive related computers, mobile phones, tablets and so on that support its technology.
If the mobile phone has Wi-Fi function, it can surf the Internet without using the mobile Unicom network when there is Wi-Fi wireless signal, thus saving the traffic fee.
Wireless Internet access is widely used in big cities. Although the wireless communication quality transmitted by Wi-Fi technology is not very good, the data security performance is worse than that of Bluetooth, and the transmission quality needs to be improved, but the transmission speed is very fast, reaching 54Mbps, which meets the needs of personal and social informatization.
The main advantage of Wi-Fi is that it does not need wiring and is not limited by wiring conditions, which is very suitable for the needs of mobile office users. Moreover, because the transmitted signal power is lower than 100mw, which is lower than the transmitted power of mobile phones, Wi-Fi surfing the Internet is relatively the safest and healthiest.