WiFi Internet is simple to understand that is actually wireless internet, many smartphones and most tablet computers support WiFi, WiFi full name wireless fidelity, is today's most widely used wireless network transmission technology. In fact, the cable network signal into the wireless signal, as in the beginning for everyone to introduce, the use of wireless routers to support its technology related computers, mobile phones, tablets and so on to receive. Mobile phone If there is WiFi function, when there is WiFi wireless signal can not through the mobile Unicom network, cut off the flow fee. But WiFi signal is also provided by the cable network, such as Home ADSL ah, community broadband ah, and so on, as long as a wireless router (wireless router setup graphics and text tutorial), you can convert the wired signal to WiFi signal. Many developed countries in the country are covered with WiFi signals provided by the government or large companies for residents to use, China's current technology has not been promoted.
So WiFi access is still very easy to implement, as long as our traditional routers to switch to a wireless router, a simple setup can be achieved WiFi wireless many people share the Internet, the general Wi-Fi radius can reach about 95 meters, but will be affected by walls, the actual distance will be smaller, but the office from needless to say, It is also available throughout the building because it is not far away.
WiFi wireless internet is commonly used in large cities, although the quality of wireless communication by Wi-Fi technology is not very good, data security performance than Bluetooth, transmission quality is still to be improved, but the transmission speed is very fast, can reach 54mbps, in line with the needs of personal and social information. WiFi's main advantage is that it does not need wiring, can not be limited by the wiring conditions, so it is very suitable for the needs of mobile office users, and because the launch signal power is lower than 100mw, lower than the cell phone transmission power, so WiFi access is the most safe and healthy.