Bluetooth is a low cost, low power, short range radio technology, originally developed as a cable
replacement to connect devices such as mobile phone, handsets and portable computers.
This link offers a Direct , secure , fast & reliable digital transmission of both voice & data.(cable
replacement )
By enabling a standardized wireless communication between any electrical device, Bluetooth has
created the notion of a personal area network, a kind of close range wireless network that looks set
to revolutionize the way people interact with information technology landscapes around them.
No longer do people need to connect, Plug into, install, enable, or configure anything to anything
else. Through an ubiquitous standardized communication subsystem, devices will communicate
seamlessly. One does not need to know where's one's cellular phone is, or even if it is switched on.
As soon as the web browser appears on the laptop computer screen, a link is established with the
phone the internet service provider is connected to, and the user is surfing the web.
The Bluetooth specifications is open, global specification defining the complete system from radio
right up to the application level. The protocol stack is usually implemented partly in hardware and
partly as software running on a microprocessor, with different implementations partitioning the
functionality between hardware and software in different ways