Bluetooth is a wireless technology standard that is used for exchanging data between fixed and mobile devices over short distances. It employs UHF radio waves in the ISM bands, from 2.402 GHz to 2.48 GHz. Bluetooth is mainly used as an alternative to wire connections, to exchange files between nearby portable devices and connect cell phones and music players with wireless headphones. In the most widely used mode, transmission power is limited to 2.5 milliwatts, giving it a very short range of up to 10 meters (33 ft).
Invented By : Dr. Jaap Haartsen and Sven Mattisson
A Fact
Bluetooth was borrowed from the 10th-century, second king of Denmark, King Harald Bluetooth, who was famous for uniting Scandinavia just as we intended to unite the PC and cellular industries with a short-range wireless link.
EE Times
How is it a revolutionized intention
Let’s talk about modern day Bluetooth. Do you remember how the space behind the equipment on your office desk used to look? It has become even more ubiquitous than the USB cable in your home office and throughout your daily activities of teleworking life is Bluetooth.
Many people have never wondered why our favourite wireless technology that used to be a life saver even 10 years ago is called ‘Bluetooth’. It revolutionised phones forever and when we speak about wireless technology, this was the pioneer. The technology looks nothing like a blue tooth, does it? Actually, the naming of this technology carries in it a tale from medieval Scandinavia about a king who connected people.
On the other hand, Bluetooth was meant for portable equipment and related applications. It’s great when you need to connect two devices with minimal configuration (often just pressing a button). Also, because Bluetooth uses weak signals, there’s limited interference and devices can communicate in “noisy” environments.
THE CHRONICLES UNKNOWN 