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 ?
Business and consumer demand for new, advanced wireless services--including 3G and Local Area Networks (LANs), such as those using Wi-Fi (wireless fidelity)--is considered by many to be an engine for future growth in American and global economies.
Titles include "Corporate Logo," "EndoNurse," "Wireless Fidelity," "Today's SurgiCenter," "Phone+" and "New Telephony."
If you own a laptop and access the Internet via a high-speed broadband or DSL connection, install a Wi-Fi (wireless fidelity) system in your home and you'll be able to roam your home or yard at will.
Our machine easily connected to the Internet via a number of Wi-Fi (Wireless Fidelity) hotspots in our city environment, and in each case the software told you whether or not the connecting service was secure--a feature that we find commendable in today's poor wireless security environment.
The first small mobile to have Wi-Fi (wireless fidelity) technology.
Wi-Fi: Wireless Fidelity. Generally denoted by a logo from the Wi-Fi Alliance that certifies that Ethernet devices comply with the IEEE 802.11 wireless standard.
Wi-Fi, short for wireless fidelity, is a high-speed wireless system that transports Internet service to a person's laptop, home PC or other device via high frequency radio signals.
By harnessing the standard called wi-fi, or wireless fidelity, supermarkets are in a position to meet both goals.
Another challenge is competition from existing technologies such as Wireless Fidelity (Wi-Fi), cable, and DSL in which customers have invested heavily.
Malone explained that Audiovox intends to ultimately create a family of portable DVD products under the Shuttle brand, with Wi-Fi (wireless fidelity)-ready models expected "down the road" as well as a model offering satellite radio capabilities.
THE RISE OF AFFORDABLE WIRELESS FIDELITY (WiFi) routers and access points is removing long-standing barriers to wireless access at jobsites, sales offices, and model homes and opening up new possibilities for wireless communities.

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