Wi-Fi

Wi-Fi is an acronym for wireless fidelity, commonly seen as IEEE
802.11b. The term comes from WECA. Wi-Fi is synonymous with
802.11b in much the same way as Ethernet is used in place of IEEE
802.3. Products certified as Wi-Fi by WECA are interoperable regardless
of manufacturer. A user with a Wi-Fi product can use any brand of
access point with any other brand of client hardware that is built to use
Wi-Fi.