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Computing a system of accessing the internet from remote machines such as laptop computers that have wireless connections
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005


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.
This article is provided by FOLDOC - Free Online Dictionary of Computing (foldoc.org)


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). However, the term is not always used correctly (see Wi-Fi terminology).

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 the Wi-Fi moniker was inspired by "hi-fi" (high fidelity), 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 an IEEE Standard
Wi-Fi is officially the IEEE 802.11 standard. For details and history, 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, Wi-Fi vs. cellular and Wi-Fi vs. Bluetooth.

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.)
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References in periodicals archive ?
Leading players of Mini WiFi Wireless Camera including:*GoPro *Ion *Sony *Contour *Polaroid *Drift *Garmin *Papago *360 *HP *VDO *Philips *Ring *SkyBell *Zmodo
First class and Suites customers could enjoy 100MB of free wifi
The eight free, unlimited wifi UK airports - just over one-third of British locations surveyed - were AIA, Birmingham, Bournemouth, Exeter, Leeds-Bradford, London Heathrow, Newcastle and Southend.
Meanwhile, the DICT as of end-May has established 2,442 free public WiFi sites covering 17 regions, 73 provinces, and 662 municipalities across the country through the Pipol KonekFree WiFi Internet Access in Public Places project.
The WiFi Modules market was valued at 5460 Million US$ in 2018 and is projected to reach 12800 Million US$ by 2025, at a CAGR of 11.2% during the forecast period
In this context, a WiFi hotspot is a WiFi node that is attached to a fixed network and provides limited mobility access or fixed access.
Singh, Director (Operator & Planning), BBNL spoke about connecting the unconnected via Public WiFi. He said,aACoeIn the first phase we have already connected 1.2 lakh gram panchayats riding on the Bharat Net network, which is a Government of India initiativeaACA[yen].
'We believe in Free WiFi to end users - it attracts people to your premises and enables greatly expanded internet access for more people.
The best solution for High-Density WiFi networks, Edgewater Wireless WiFi3 powered access point products enable innovative service providers to plan, build and deploy reliable, high-capacity services (like VoWiFI) for high- density wireless data demand in any environment.
Since 2002 eWireless has primarily focused on deploying and managing WiFi networks through their proprietary cloud-based management software.
From August 19-23, free WiFi supplied by WiFi UAE will
Higher speed WiFi in the UAE is our way of celebrating the joyous occasion of Eid and thanking our customers for the faith they have in us," said Fahad Al Hassawi, deputy CEO for TelcoServices -- EITC, du's parent company.