The term Wi-Fi, commercially used at least as early as August 2000,[17] was coined by a brand-consulting firm called Interbrand Corporation. The Wi-Fi Alliance had hired Interbrand to determine a name that was "a little catchier than 'IEEE 802.11b Direct Sequence'".[18][19][20] Phil Belanger, a founding member of the Wi-Fi Alliance who presided over the selection of the name "Wi-Fi," also stated that Interbrand invented Wi-Fi as a play on words with Hi-Fi (high fidelity), and also created the Wi-Fi logo.
The Wi-Fi Alliance initially used the advertising slogan, "The Standard for Wireless Fidelity",[18] for Wi-Fi but later removed the phrase from their marketing. Despite this, some documents from the Alliance dated 2003 and 2004 still contain the term Wireless Fidelity.[21][22] There was no official statement related to the dropping of the term.
The yin-yang Wi-Fi logo indicates the certification of a product for interoperability.[21]
Non-Wi-Fi technologies intended for fixed points such as Motorola Canopy are usually described as fixed wireless. Alternative wireless technologies include mobile phone standards such as 2G, 3G or 4G.
http://en.wikipedia.org/wiki/Wi-Fi