Wi-Fi is quickly gaining in popularity with access points across the United States increasing by approximately 100% in 2003. Wi-Fi refers to a set of wireless networking technologies more specifically referred to as 802.11a 802.11b and 802.11g. These standards are universally in use around the globe, and allow users that have a Wi-Fi capable device, like a laptop or PDA, to connect anywhere there is a Wi-Fi access point that is available. The three standards that are referred to signify the speed of the connection they are capable of producing. 802.11b (which transmits at 11 Megabits per Second) is the most common, although it is quickly getting replaced by the faster Wi-Fi standards. Both 802.11a and 802.11g are capable of 54 MBPS, with 802.11a adding additional capabilities. Across the board, all of these Wi-Fi standards are fast enough to generally allow a broadband connection. Wi-Fi is an emerging technology that will likely be as common as electrical outlets and phone lines within a few years. Wi-Fi adds tremendous levels of convenience and increased productivity for workers whose offices are equipped with Wi-Fi, as well as travelers that can increasingly access Wi-Fi in airports, coffee shops, and hotels around the world.
,不过还是要的技巧的.