Wi-fi

Wi-fi

Wi-Fi is a standard for wireless transmission. Generally, products with this logo indicate that you can use them to easily form a wireless LAN. What is the benefit of wireless LAN? Obviously - no need to route and use relative freedom.

Wi-Fi represents "wireless fidelity", refers to the IEEE802.11b subset of 802.11 standards. Wi-Fi supports data transfer rate up to 11MB / s, which is the most common standard so far. Wi-Fi is not a specification. It itself is an industry alliance, also a certification mark of wireless network equipment, with this logo product, basically can be interoperable. The specification used by Wi-Fi is the specifications set by the IEEE 802.11a / b / g project group. It corresponds to Wi-Fi that WiMAX, WiMAX is certified to broadband wireless network devices.

Wi-Fi is a wireless network technology based on 802.11b, 802.11a, and has not been finally formed, which enables users to implement wireless access and sharing network resources. The advantage of erecting wireless networks is the trouble of exempting the wiring, and it is more likely to access network data. Under the new standard, Wi-Fi's wireless distance expands from 300 feet to a few miles, and the signal encounters that it will rebound, and it can also penetrate the wall. In addition, this standard can repair security vulnerabilities and can transmit high quality calls. High frequency Wi-Fi can contact between two antennas of several miles, exchange data. Its short-distance wireless data transmission speed is 200 times the dial mode, but the price is not more than dial. Compared with 3G, Wi-Fi's advantage is that the terminal is in advance, and the laptop that has long been deeply rooted will make each user feel convenient, and Intel "Current" markers have deepened this promotion. In a sense, 3G terminal brands seem to have been shaped first by Wi - Fi. So, some people think that Wi-Fi is likely to exceed 3G in the next period.