Bluetooth explained: The most important facts at a Glance
Bluetooth is a special method to transfer data by radio. Thus, a cable connection between two devices is unnecessary. Bluetooth can transfer any type of data, including music.
- The first Version of Bluetooth was developed in 1999, since then the Bluetooth will be continually developed by many companies such as HP, Intel and IBM in cooperation. Since 2009, there is Bluetooth Version 4.0, in the year 2016, the Bluetooth 5.0 has been presented.
- There are different types of Bluetooth devices have different ranges of 1 to 100 meters reach. In practice, it may be between the two Bluetooth devices, a distance between 1 to 10 meters, so the connection is.
- The Name Bluetooth derives from the Danish king, Harald blue-tooth. He was at the time, for an Alliance between Norway and Sweden, established a firm connection between the two countries.
- Also the Logo is based on Harald blue-tooth. It is a combination of his initials H and B. But not in the Latin alphabet, but in Germanic runes.

What is Bluetooth?
Bluetooth in practice: Possible areas of use
Bluetooth is not the same as Bluetooth. Depending on the Wishes of the manufacturer of the Bluetooth device has different Profiles. The "A2DP" profile is suitable for the Transmission of music, the profile, "HSP", however, only for the Transmission of voice via headset.
- Bluetooth and mobile phones are no longer separate. Every smart phone and cell phone for the last 10 years is equipped with Bluetooth. The rule is there, use Bluetooth to transfer music wirelessly to headphones or music systems.
- Also, many computers and Laptops are equipped with Bluetooth. This is not the case, you can retrofit Bluetooth with a small USB Adapter. On the PC connected, in most cases, wireless keyboards and mice over Bluetooth.
- Free systems in the car work always via Bluetooth. The connection between car and phone is made using Bluetooth in a few seconds.
- Mobile speakers and music systems, therefore, in many cases, also with Bluetooth. Also, the controllers of games consoles such as the Wii, PlayStation or Xbox connect via Bluetooth.
- Potentially any electronic device, can that data be equipped sends or receives, with Bluetooth. So, Bluetooth is also used in the industry or in hearing AIDS, in order to read data.

Wireless Bluetooth Mouse
Advantages and disadvantages of Bluetooth
- Before there was Bluetooth was infrared the medium of choice to transfer data wirelessly from point A to point B. Infrared came, among other things, in the case of old Nokia phones and GameBoys to use. The two devices had to be directly next to each other and the transfer speed was very slow.
- Bluetooth has done for this remedy and is today developed. This has increased in recent years, especially the transfer rate, the safety is improved and the power consumption is reduced.
- Meanwhile, more and more devices use Wi-Fi instead of Bluetooth to Transfer data. Especially in the case of music equipment, this Trend is observed. In the case of large amounts of data and vast distances, Bluetooth is lagging behind till today.
- Bluetooth transmits on a frequency between 2.402 GHz and 2.480 GHz. As a result, it can quickly lead to malfunctions and reduced if other operators, such as routers or DECT phones are in the vicinity.
- Conclusion: For quick and easy Transfers between two devices, Bluetooth has become the Standard. Only in the case of large amounts of data and long distances, the weakness of Bluetooth is clearly.
Read also, how harmful is Bluetooth really is , and how to protect yourself from a hacker attack over Bluetooth Connections protect.
