Wi-Fi

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Related to wireless fidelity: WiMAX

Wi-Fi

Computing a system of accessing the internet from remote machines such as laptop computers that have wireless connections

wi-fi

(networking)
Either of two different incompatible radio-based LAN protocols, namely 802.11b (which speaks DSSS at 2.4GHz) and 802.11a (which speaks OFDM at 5GHz).

The term was invented by the marketing departments of wi-fi equipment manufacturers. It is, notionally, short for "wireless fidelity", on the analogy of hi-fi for "high fidelity" audio.

Wi-Fi

The standard wireless local area network (WLAN) technology for connecting computers and myriad electronic devices to each other and to the Internet. Wi-Fi is the wireless version of a wired Ethernet network, and it is commonly deployed alongside it (see Ethernet).

Every laptop, tablet and smartphone comes with Wi-Fi, as well as most security cameras and home theater devices. Printers and scanners may also support Wi-Fi, and home appliances increasingly use it for control and notifications. Although it must have been inspired by "high fidelity" (hi-fi), the name does not mean "wireless fidelity." To learn how Wi-Fi fits into the home and office, see wireless LAN, wireless router and Wi-Fi hotspot.

Wi-Fi Is Officially IEEE 802.11
Wi-Fi is the common name for the IEEE 802.11 standard. For details and history of Wi-Fi, see 802.11 and 802.11 versions. The Wi-Fi Alliance certifies that network devices comply with the IEEE 802.11 standards. See Wi-Fi hotspot, Wi-Fi Direct, Passive Wi-Fi, Muni Wi-Fi, wireless mesh network, Wi-Fi vs. Ethernet and cellular vs. Wi-Fi.


Wi-Fi-Enabled Washing Machine
This Miele washing machine sends alerts to the user and to Miele via Wi-Fi. If it reports a problem, the company may notify the dealer.







Wireless and Wired Together
With a wireless router, Wi-Fi and Ethernet co-exist in the home. See wireless router.







Ceiling-Mounted and Desktop Access Points
Access points (APs) are the Wi-Fi base stations, and the circuitry in these stand-alone units is also built into a wireless router.







Wi-Fi Adapters
The adapter (top) adds Wi-Fi to any computer via USB, while the card on the bottom plugs into a PCI slot inside a desktop computer. (Images courtesy of D-Link Corporation and TP-LINK Technologies Co., Ltd.)
References in periodicals archive ?
Virgo Publishing (VPI; Phoenix, AZ), the publisher of Phone+ and XChange magazines among others, has begun the publication of Wireless Fidelity magazine with an issue this month.
The added mobility and farther range that WiMAX offers over its predecessor, wireless fidelity (Wi-Fi), and its ability to provide greater bandwidth over third-generation (3G) networks further strengthen its appeal.
ATLANTA -- Wandering WiFi, a wireless technology solutions provider, announced today that Caribou Coffee has had phenomenal success implementing its wireless fidelity (Wi-Fi) service as a free amenity to customers nationwide.
Wireless Village is involved with construction of next-generation wireless broadband networks based on MESH technology, and the installation, maintenance and marketing of wireless fidelity ("WiFi") networks utilizing various promulgations of the 802.

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