Bluetooth technology


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Bluetooth technology

  1. 1.  Bluetooth is a wireless technology used to transfer data between different electronic devices. The distance of data transmission is small in comparison to other modes of wireless communication. This technology eradicates the use of cords, cables, adapters and permits the electronic devices to communicate wirelessly among each other.  Bluetooth is a high-speed, low-power microwave wireless link technology, designed to connect phones, laptops, PDAs and other portable equipment together with little or no work by the user.
  2. 2.  Invented in 1994, by a Swedish company  The name "Bluetooth" comes from the 10th century Danish King Harald Blåtand or Harold Bluetooth in English.  In 1998, it was promoted by Ericsson, Intel, Nokia, Toshiba and IBM.  Came together to form the Bluetooth Special Interest Group (SIG)  Further SIG member improved the device to interconnect the world.
  3. 3. 1. Head Set 2. In-Car Bluetooth System 3. Bluetooth Equipped Printer 4. Bluetooth Equipped Web Cam 5. Bluetooth GPS System 6. Bluetooth Key Board
  4. 4.  To set a wireless connection, two Bluetooth enabled devices are required  Both device’s visibility should be on.  Both devices should mutually allow the connection during the optional security check.  This is called pairing of devices  Now any of the device can transfer files, videos, audios etc. to another device.  Also can browse file of counter device.
  5. 5.  Can handle simultaneously data and voice transmission.  Hands-free headset for voice calls and music.  Printing and fax capabilities  Synchronization for PCs and mobile phones  Internet connection can also be set up on one device using another device internet support.  In-vehicle systems give the ability to make phone calls, send texts, and even make dinner reservations
  6. 6.  Bluetooth technology uses radio waves.  It transmits them over a shorter distance.  Earlier it operated only upto 1 m but now it can work upto 100 m.  Bluetooth technology operates in the unlicensed industrial, scientific and medical (ISM) band at 2.4 to 2.485 GHz, using a spread spectrum.  The most commonly used radio is Class 2 and uses 2.5 mW of power
  7. 7.  These have Replaced cables for transferring Information from one Electronic Device to another one.  These have decreased Strain like carrying phones while talking, making hands free to do another work.  This is cheaply Available.  Data sent between two Bluetooth devices is very slow compared with Wi-Fi transfer Rate.  Range Of a Bluetooth Device is 15-30 feet depending upon the Device. DISADVANTAGES
  8. 8.  It’s Mobility is also very Important as it doesn’t need any power outlet or Internet connection or any other items  Bluetooth technology are robustness, low power, and low cost  Bluetooth technology is designed to have very low power consumption  Security is Biggest Disadvantage as transfer takes place through radio waves and a hacker can easily hack it.  Battery usage is also a problem, it will make device out of power before it would have if Bluetooth was not powered on.