===== Wireless Fidelity (Wi-Fi) =====
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**Wireless Fidelity (Wi-Fi)** is a type of [[dido:public:ra:xapend:xapend.a_glossary:w:wireless|wireless network]] technology used for connecting to the [[dido:public:ra:xapend:xapend.a_glossary:i:internet|Internet]]. The frequencies wi-fi works at are 2.4Ghz or 5Ghz, ensure no interference with cellphones, broadcast radio, TV antenna and two-way radios are encountered during transmission.

To simplify, Wi-Fi is basically just radio waves broadcast from a Wi-Fi [[dido:public:ra:xapend:xapend.a_glossary:r:router|router]], a device detecting and deciphering the waves, and then sending back data to the router. It works very similarly to an AM/ FM radio but it is two-way communication channel. Wi-Fi works over longer distances than [[dido:public:ra:xapend:xapend.a_glossary:b:bluetooth]] or infrared and is also a low power unobtrusive technology, making it suitable for portable devices such as laptops and palmtops. Wi-Fi is governed by the Wi-Fi Alliance, an association of manufacturers and regulators defining standards and certifying products as Wi-Fi compatible.


Source: [[https://www.techopedia.com/definition/10035/wireless-fidelity-wi-fi | Wireless Fidelity (Wi-Fi) ]]