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Wireless Fidelity     In the last few geezerhood the world has undergone a tremendous and unprecedented technological change with the advance of the Information Technology revolution. Earlier it was e-mail that changed the way people communicate, and hence online shopping became the order of the day, gradu in ally online banking caught up and the list goes on and on. The mod trend, Wi-Fi, or Wireless Fidelity, allows you to connect to the Internet from your couch at family line, a bed in a hotel room or at tutor, all without wires. As author Harold Davis nicely puts, Wi-Fi is a wireless technology only when like a mobile phone and Wi-Fi enabled computers send and receive selective information indoors and out anywhere within the range of a trading floor station. Wi-Fi certification means that you will be able to connect anywhere there are other Wi-Fi CERTIFIED products whether you are at home, the office, school and other public areas equipped with a Wi- Fi Access Point kink (35). Customers with the capability to tap into wireless Internet interlocks at certain universities and Starbucks cocoa shops in US will soon be able to snitch the Web in a very inexpensive way apply the wireless internet technology     Wi-Fi WLAN use radio technologies called IEEE 802.11b or 802.11a to provide secure, reliable, fast wireless connectivity. Michael Galagher notes that, A Wi-Fi WLAN can be utilize to connect computers to each other, to the Internet, and to wired net earns (which use IEEE 802.3 or Ethernet) (120). Wi-Fi WLANs lease in the unlicensed 2.4 and 5 GHz radio bands, with an 11 Mbps (802.11b) or 54 Mbps (802.11a) data rate or with products that contain both bands (dual band), so they can provide real-world performance convertible to the basic 10BaseT wired Ethernet networks used in many networked environments.     Competition has already driven down the cost of deploying 802.11b networks whi ch can now be deployed by businesses to give their employees mobility within the business. radical users can buy 802.11b kit to extend their DSL or bank line broadband Internet access wirelessly to the entire house. James LaRocca points out that, In universities and schools a wireless network can allow computers to be structured more effectively into teaching as classes no longer learn to be held in computer lab (48).     In ... ...The master nominate also serves as a password by which users can be authenticated and granted network access. WPA was designed to be a bundle upgrade to WEP, so most existing wireless devices should be upgradeable to WPA via a firmware (define) update. In order to foreshorten advantage of WPA, all network devices like access points and clients must be upgraded.      The first WPA-enabled products are pass judgment in the early Spring of 2003, and upgrades for existing products should be available at around the same time or shortly thereafter. For Wi-Fi to really take off in homes, its needs to capture the public imagination and ca-ca the initial equipment costs seem even more trivial similar to when TV sets were drastically reduced in price . "Wi-Fi is a cardinal step for home networking, but it still doesnt solve issues of developing home entertainment," agrees Roland Bergers Kintz. Thats probably true. But coming up with an attention grabber doesnt seem so impossible with Intel and Microsoft already pouring millions of dollars into Wi-Fi technologies and major carriers such as VoiceStream and AT&T figuring out how to make the technology work for them.