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Connecting with Bluetooth

Like Wi-Fi, Bluetooth technology is also a radio-based, wireless technology. It was designed to replace the cables that many devices use to communicate with each other, but it actually wasn't meant to be used for the Internet because it operates at a much slower speed than Wi-Fi—0.721 megabits per second (Mbps) for Bluetooth versus 11 Mbps for 802.11b Wi-Fi—and it has a much shorter range: only 30 feet versus 150 feet for 802.11b.

Bluetooth replaces low-speed data cables the most effectively. For instance, some cell phones have replaced the wire connecting their headsets with wireless Bluetooth headsets. This way your phone can remain in your purse, briefcase, or pocket while you walk down the street seemingly having a conversation with your invisible friend. Bluetooth also works well with keyboards and mice because it easily handles the relatively small amount of data transferred between these input devices and a computer.


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