Wireless broadband is wifi, which is a wireless communication technology that provides high-speed wireless Internet access or computer network access in a wide area. Wireless broadband is connected to the Internet through radio waves. A common wireless router is a wireless router. The Wi-Fi connection can be used to connect to the Internet within the effective range of the radio wave coverage of the wireless router. If the wireless router is connected to an ADSL line or other Internet access Lines are also called hot spots.
The operating environment of this tutorial: Windows 7 system, Dell G3 computer.
Wireless broadband is wifi, a wireless communication technology that provides high-speed wireless Internet access or computer network access in a wide area.
Wi-Fi hotspots are created by installing an access point on your Internet connection, which transmits wireless signals over a short distance - typically 300 feet. When a Wi-Fi-enabled device (such as a Pocket PC) encounters a hotspot, the device can connect to that network wirelessly.
Wi-Fi (pronounced: /ˈwaɪfaɪ/, French pronunciation: /wifi/), also known as "mobile hotspot" in Chinese, is manufactured by the Wi-Fi Alliance The company's trademark serves as brand certification for the product and is a wireless LAN technology created in the IEEE 802.11 standard. Based on the close relationship between the two systems, some people often regard Wi-Fi as a synonymous term for the IEEE 802.11 standard. "Wi-Fi" is often written as "WiFi" or "Wifi", but these are not recognized by the Wi-Fi Alliance.
Not every product that matches IEEE 802.11 applies for Wi-Fi Alliance certification. The relative lack of Wi-Fi certified products does not necessarily mean that it is not compatible with Wi-Fi devices.
IEEE 802.11 equipment has been installed in many products on the market, such as: personal computers, game consoles, MP3 players, smartphones, tablets, printers, laptops and other peripheral devices that can access wireless Internet.
Technical Principle
Wireless network refers to "wireless compatibility certification" in the category of wireless LAN, which is essentially a commercial certification and a wireless Networking technology used to connect computers through network cables, while Wi-Fi connected to the Internet through radio waves; a common wireless router is a wireless router, and the Wi-Fi connection method can be used to connect to the Internet within the effective range of the radio wave coverage of the wireless router. , if the wireless router is connected to an ADSL line or other Internet line, it is also called a hotspot.
Main functions
Wireless Internet access can be simply understood as wireless Internet access, almost all smart phones, tablets and laptops All support Wi-Fi Internet access, which is the most widely used wireless network transmission technology today. In fact, it is to convert the wired network signal into a wireless signal. As introduced at the beginning, a wireless router is used for reception by related computers, mobile phones, tablets, etc. that support its technology. If your mobile phone has a Wi-Fi function, you can surf the Internet without going through China Unicom's network when there is a Wi-Fi wireless signal, thus saving on traffic charges.
Wireless network Wireless Internet access is commonly used in big cities. Although the quality of wireless communication transmitted by Wi-Fi technology is not very good, the data security performance is worse than Bluetooth, and the transmission quality needs to be improved, the transmission speed is very fast. , can reach 54Mbps, meeting the needs of personal and social informatization. The main advantage of Wi-Fi is that it does not require wiring and is not restricted by wiring conditions, so it is very suitable for the needs of mobile office users. And because the transmit signal power is less than 100mw, which is lower than the transmit power of mobile phones, Wi-Fi Internet access is relatively It is also relatively safe.
But Wi-Fi signals are also provided by wired networks, such as ADSL at home, residential broadband, etc. As long as you connect a wireless router, the wired signals can be converted into Wi-Fi signals. In many foreign developed countries, cities are covered with Wi-Fi signals provided by the government or large companies for residents to use. There are also many places in our country that have implemented "wireless city" projects to promote this technology. In pilot cities where 4G licenses have not been issued, many places use 4G to Wi-Fi for citizens to try out.
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