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Sunday, December 29, 2002
A Double Dose Of Wi-Fi - Arik Hesseldahl, Fortune
The current star of the wireless networking world is Wi-Fi. Take your laptop to Starbucks or to the airport and often you'll find a Wi-Fi network available to connect you to the Web or let you check your e-mail. But within the name Wi-Fi are two types of networking technology: one technically known as IEEE 802.11b, the other as 802.11a. The difference between them is in the frequency range they use. Wi-Fi uses the unlicensed 2.4 Gigahertz range, which is the same range that many cordless phones use. 802.11a uses frequencies in the 5 GHz range.
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