Bluetooth is really an amazing creation in the field of technology. It is used to transfer any kind of data like voice, images and multimedia files (audio, video, mp3, mp4 etc.) over a short distance. It is known as an open wireless technology which is now commonly in uses with most of the technology giants being a necessary part of their accessories in which mobile companies are most common.
Bluetooth actually uses radio transmissions of short wavelength to transmit date from one device to another device and thus a PAN is being created between these two devices. PAN stands for personal area networks. One best feature of this technology is that it transmits data with high level of security. Ericsson is known as the creator of this open wireless technology form.
Bluetooth was created in year 1994. Originally it was designed as a replacement of RS-232 which is widely known as data cable. It can make a connection with more than one device simultaneously which really solved a lot of connection problems. “Bluetooth Special Interest Group” is the organization which is currently responsible to handle this unique open wireless technology.
A radio technology which is known as “frequency-hopping spread spectrum” is being used by Bluetooth to transmit data between devices and data can be transmitted up to maximum of 1 MHz’s 79 bands. Approximately seven devices can be connected through the master Bluetooth device within one user group of wireless. This type of user group is named as “piconet”. The roles of these devices can be changed at anytime within the same user group.
Bluetooth is widely available in several products around the globe in which most common are Lego Mindstorms NXT, PSP Go, iPod Touch, PlayStation 3 and Wii. It is also made available in headsets, moderns and watches.
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