WHAT IS BLUETOOTH?????

 Hello freinds, now a days everyone use " BLUETOOTH ".

So, I am posting some information about it, Hope u all like it!!!!!!!!!

• WHAT IS BLUETOOTH?????

Bluetooth is a proprietary open wireless technology standard for exchanging data over short distances using short wavelength radio transmissions from fixed and mobile devices, creating personal area network (PANs) with high levels of security. It is created by telecoms vendor Ericsson in 1994. It can connect several devices, overcoming problems of synchronization.

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, and is designed to be a secure and inexpensive way of connecting and exchanging information between devices without wires.

Bluetooth is the name for a short-range radio frequency (RF) technology.

It is operated at 2.4 GHz and is capable of transmitting voice and data.

The effective range of Bluetooth devices is 32 feet (10 meters).

Bluetooth transfers data at the rate of 1 Mbps, which is from three to eight times the average speed of parallel and serial ports, respectively.

Why is the technology called Bluetooth????????

The heart of the Bluetooth brand identity is the name, which refers to the 10th century Danish king Harald "Bluetooth" Blaatand who unified Denmark and Norway

In the beginning of the Bluetooth wireless technology era, Bluetooth was aimed at unifying the telecom and computing industries.

Bluetooth can be used to wirelessly synchronize and transfer data among devices.

Bluetooth can be thought of as a cable replacement technology.

Typical uses include automatically synchronizing contact and calendar information among desktop, notebook and palmtop computers without connecting cables.

Bluetooth can also be used to access a network or the Internet with a notebook computer by connecting wirelessly to a cellular phone.

Where Did the Logo Come From?????????

A Scandinavian firm originally designed the logo at the time the SIG was formally introduced to the public. Keeping to the same origin as the Bluetooth name, the logo unites the Runic alphabetic characters "H", which looks similar to an asterisk, and a "B", which are the initials for Harald Bluetooth. If you look close enough you can see both embodied in the logo.

Bluetooth Advantages -

 Why Use Bluetooth?

Main Reasons to Use a Bluetooth Device:

1. Bluetooth Devices are Wireless

2.  Bluetooth Technology is Inexpensive

Bluetooth technology is cheap for companies to implement, which results in lower over-all manufacturing Costs. These savings are then passed on to you, the consumer. The end result: Bluetooth devices are relatively inexpensive.

3.  Bluetooth is Automatic

Bluetooth doesn't require you to think about setting up a connection or to push any buttons. When two or more Bluetooth devices enter a range (Up to 30 feet) of one another, they automatically begin to communicate without you having to do anything. Once the communicating begins, Bluetooth devices will setup Personal Area Networks or Piconets.The best part is: The devices take care of the entire setup process, and you can go about your business. 

4. Standardized Protocol = Interoperability

Since Bluetooth is a standardized wireless specification, a high level of compatibility among devices is guaranteed. The Bluetooth specification uses and defines various profiles. Every Bluetooth profile is specific to a particular function. For instance, when a Bluetooth enabled cell phone and a Bluetooth headset (Both with the same profile) are communicating with one another, both will understand each other without the user having to do anything, even if the devices are of different models/makes.

5. Low Energy Consumption

Bluetooth uses low power signals. As a result, the technology requires little energy and will therefore use less battery or electrical power. Obviously, this is a great benefit for mobile devices because Bluetooth won't drain the life of your device's battery.

7. Share Voice and Data

The Bluetooth standard allows compatible devices to share both voice and data communications. For example, it is probably no surprise that a Bluetooth enabled cell phone is capable of sharing voice communications with a compatible Bluetooth headset, however, the same cell phone may also be capable of establishing a GPRS connection to the Internet. Then, using Bluetooth, the phone can connect to a laptop. The result: The laptop is capable of surfing the web or sending and receiving email.

8. Instant Personal Area Network (PAN)

Up to seven compatible Bluetooth devices can connect to one another within a proximity of up to 30 feet, forming a PAN or piconet. Multiple piconets can be automatically setup for a single room.

Bluetooth Security

Today, all communication technologies are facing the issue of privacy and identity theft. Bluetooth technology is no exception. The information and data we share through these communication technologies is both private and in many cases, critically important to us.

Everyone knows that email services, company networks, and home networks all require security measures. What Bluetooth users need to realize, is: Bluetooth requires similar security measures.

According to the Bluetooth Special Interest Group (SIG), in order to break into a Bluetooth device, a hacker must:

• Force two paired Bluetooth devices to break their connection
• Steal the packets used to resend the PIN, then
• Decode the PIN

Bluetooth Versions

There are different versions of Bluetooth as follows:

Bluetooth Specification Version 1.1 and Earlier

Bluetooth Version 1.2

Bluetooth Version 2.0 + EDR (Enhanced Data Rate)

Bluetooth Version 2.1 + EDR (Enhanced Data Rate)

Bluetooth Version 3.0 + HS (High Speed).

Today Bluetooth is managed by the Bluetooth Special Interest Group.