28-03-2008, 10:58 AM
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 | | | Join Date: Sep 2007 Location: near Govt College of Science Multan Pakistan
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 What is Bluetooth?
What is Bluetooth?
Bluetooth is an open specification for wireless short range communications of data and voice between both mobile and stationary devices. It was developed by Ericsson Inc., Intel Corp., Nokia Corp. and Toshiba. It was designed to set a standard for cable free connectivity between mobile phones, mobile PCs, handheld computers and other peripherals. It offers better signal range than standard wireless devices.
Bluetooth offers a range of 10 meters (32 feet) and a low speed (up to 1Mbps) wireless transmission of digital voice and data in the unlicensed 2.4GHz band. Bluetooth technology is an ad hoc technology that requires no fixed infrastructure and is simple to install and set up. Bluetooth wireless technology is the most widely supported, versatile, and secure wireless standard on the market today.
Bluetooth is used on many devices such as keyboards and mice, cell phone headsets, GPS systems for your car and Ipod transmitters
The Bluetooth core system consists of an RF transceiver, baseband, and protocol stack. The system offers services that enable the connection of devices and the exchange of a variety of data classes between these devices.
The manufacturer of each product determines the security mode of their product. Devices and services also have different security levels. For devices, there are two levels of security: trusted device and untrusted devices. A trusted device, having been paired with one's other device, has unrestricted access to all services. With regard to services, three security levels are defined: services that require authorization and authentication, services that require authentication only and services that are open to all devices.
PRESENTATION on BLUE TOOTH by Shery and fellows..
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