WiFi is a technology that uses radio wave technology to connect computers, mobile phones, tablets and other devices. It can connect computers, mobile phones and other devices with the Internet or other devices to realize information transmission and enjoyment. WiFi technology can provide Internet connection, so that people can access the Internet anytime and anywhere. It usually uses wireless routers to convert wired networks into wireless signals, and then connects devices through WiFi standards.
WiFi standards are 802. 1 1a, 802.1b, 802. 1 1g, 802.1. With the development of technology, the speed and coverage of WiFi are constantly improving. In addition to providing Internet connection, WiFi can also be used in smart homes, Internet of Things, smart cities and other fields. By connecting various devices together, intelligent control and remote monitoring can be realized.
WiFi generation background
Wireless network is a wireless network technology defined by IEEE. When IEEE formally defined the standard of 802. 1 1 in 1999, IEEE selected and recognized the wireless network technology invented by CSIRO as the best wireless network technology in the world, so the wireless network technology standard of CSIRO became the core technology standard of Wi-Fi in 20 10.
The wireless network technology was invented by CSIRO, a research institute under the Australian government, in the 1990s, and successfully applied for the wireless network technology patent in the United States on 1996. The inventor is a research team led by Dr. john O'Sullivan, an engineering graduate from the University of Sydney. IEEE once asked the Australian government to give up the wireless network patent and let the world use Wi-Fi technology for free, but it was rejected.