Unlike the 3G and Edge protocol's bluetooth uses a short-range radio frequency band. Also unlike the other radio protocol's it uses a specially designed technology called frequency-hopping spread spectrum, what this does is chop up the information being sent into smaller chinks - usually in sizes consisting of 1MHz each. Following the introduction of Bluetooth 2.0, data rate speeds lead from 1Mbit/s to 3Mbit/s. One main difference that bluetooth has compared to other radio protocols is that it can connect directly to another bluetooth radio, it uses a packet-based protocol with a master-slave structure that allows the master to set up a piconet (a type of personal area network) and connect to seven slave bluetooth devices.
Since the first release of the bluetooth protocol in 1994 many more uses have become available such as USB bluetooth devices that allow the users to simply plug and play, also printers and head sets are now built with a bluetooth radio inside allowing a user to have hassle free connection to their device.
A great post, Louis. Lots of information and easy to read. Well done.
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