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Wi-Fi - Wireless Fidelity

By Bradley Mitchell, About.com

Definition: Wi-Fi is the industry name for wireless LAN (WLAN) communication technology related to the IEEE 802.11 family of wireless networking standards. To some, the term Wi-Fi is synonymous with 802.11b, as 802.11b was the first standard in that family to enjoy widespread popularity. Today, however, Wi-Fi can refer to any of the established standards: 802.11a, 802.11b, 802.11g and 802.11n.

The Wi-Fi Alliance (see sidebar) certifies vendor products to ensure 802.11 products on the market follow the various 802.11 specifications. Unfortunately, 802.11a technology is not compatible with 802.11b/g/n, so Wi-Fi product lines have been somewhat fragmented.

See also - Wi-Fi - The Technology Formerly Known as Wireless Fidelity

Also Known As: (incorrectly) wireless fidelity
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