Bluetooth is a wireless technology that allows short-range connectivity between devices like laptops, phones, and headsets. It was introduced in 1998 and has since evolved through several specifications that have increased speed and connection capabilities. Bluetooth uses short-range radio waves to automatically connect devices in a fast and simple way, either in point-to-point or point-to-multipoint configurations called piconets and scatternets. While convenient for transfers over short distances, Bluetooth has limitations on file size, distance, and some security issues.

1. Bluetooth Technology

2. Introduction
• What is Bluetooth?
• Why is it useful?

3. History
• 1998 - Bluetooth technology is officially introduced and the BLUETOOTH
SIG is formed. Bluetooth technology's intended basic purpose is to be a
wire replacement technology in order to rapidly transfer voice and data.
• 1999 - Bluetooth 1.0 Specification is introduced.
• 2003 - The BLUETOOTH SIG overhauls the Bluetooth Core Specification
with the announcement of Version 2.1.
• 2004 - Bluetooth Version 2.0 + EDR (Enhanced Data Rate) is introduced.
• 2005 - Devices using Version 2.0 + EDR begin to hit the market in late
2005.
• 2007 - Bluetooth Core Specification Version 2.1 + EDR is adopted by the
BLUETOOTH SIG.
• 2009 - Bluetooth Core Specification Version 3.0 + HS (High Speed) is
adopted by the BLUETOOTH SIG.

4. How it works?
• Short range wireless connectivity.
• Low power consumption
• Automatic recognition.

5. Bluretooth Stack

6. Bluetooth Network Topology
• capable of point to point & point to multi-point connections
• Piconet:
° a master device
° one to seven active slave units
° a piconet channel
• Scatternet:
° a group of piconets, up to maximum of ten
° a way of connecting a device to multiple masters
° Full-duplex rate of more than 6Mb/s.

7. Privacy/Security
• Very Important.
• Don’t want data to be shared.
• Security not great.
– Pairing security.

8. Reliability
• What it really means?
• Which device are you connecting to?
• How large is the file?
• Which version are you using?
• Have the two devices been connected before?

9. Support of Community

10. Devices
• Laptops
• Gaming Consoles
• Headsets
• Cell Phones
• Printers

11. Ease of Use
• Very easy to use.
• Connection is fast and simple.
• More devices are Bluetooth capable.
• Auto recognition.

12. Future
• Diverse applications with Bluetooth.
• Faster transfer rate.
• Stronger connection.
• Longer distance.

13. Conclusion
• Few flaws
– Security
• Good for short transfers
– Limitations on file size
– Limitations on distance
• Convenient
– Faster
– More simple than flash drive

14. References
• 1.
http://www.bluetooth.com/English/Experience/Pages/On_The_Cutting_• 2. http://electronics.howstuffworks.com/bluetooth2.htm
• 3.http://www.bluetomorrow.com/about-bluetooth-technology/
history-of-bluetooth/bluetooth-history.html
• 4.http://www.bluetooth.com/English/SIG/Pages/default.as
px
• 5. http://en.wikipedia.org/wiki/Bluetooth
• 6. http://www.allbusiness.com/technology/678266-1.html

15. Thank You