Frae Wikipedia, the free beuk o knawledge
Wi-Fi
or
WiFi
is a technology for
wireless local aurie networkin
wi devices based on the
IEEE 802.11
staundarts.
Wi-Fi
is a tredmerk o the
Wi-Fi Alliance
, that restricts the uise o the term
Wi-Fi Certified
tae products that successfully complete
interoperability
certification testin.
[1]
Devices that can uise Wi-Fi technology include personal computers, video-gemme consoles,
phones
an
taiblets
, deegital cameras,
smairt TVs
, deegital audio players an modren prenters. Wi-Fi compatible devices can connect tae the Internet via a WLAN and a
wireless access pynt
. Sic an access pynt (or
hotspot
) haes a range o aboot 20 meter (66 feet) indoors an a greater range ootdoors. Hotspot coverage can be as smaw as a single ruim wi waws that block radio waves, or as lairge as mony square kilometres achieved bi uisin multiple owerlappin access pynts.
Wi-Fi maist commonly uises the 2.4 gigahertz (12 cm)
UHF
an 5.8 gigahertz (5 cm)
SHF
ISM
radio baunds. Onyane within range wi a
wireless modem
can attempt tae access the network; acause o this, Wi-Fi is mair vulnerable tae attack nor wired networks. Wi-Fi Protected Access is a faimily o technologies creatit tae pertect information muiving athort Wi-Fi networks an includes solutions for personal an enterprise networks. Siccarity featurs o Wi-Fi Protected Access constantly evolve tae include stranger pertections an new siccarity practices as the siccarity laundscape chynges.
