Bluetooth is a wireless technology standard that defines a short-range radio connection that may be used to transfer data between devices such as personal computers, mobile phones, personal digital assistants, and other electronics. Bluetooth allows you to do things like print wirelessly, chat on a hands-free phone, and synchronize your PDA’s calendar with your laptop’s. It’s a substitute for cables much as infrared, but with numerous improvements.

The Bluetooth standard prioritizes efficiency in terms of both power and size. Its low energy needs make it suitable for use in portable gadgets that run on batteries. There are no line-of-sight requirements with Bluetooth, and the data transfer speeds are far higher than those of infrared. Because it uses the universally compatible 2.4 GHz wireless band, you can use it anywhere in the globe.

History

Harald Blatand (Harld Bluetooth), king of Denmark in the 10th century, was honored for his ability to bring peace to the countries that are now known as Norway, Sweden, and Denmark. The Bluetooth Special Interest Group is responsible for it presently, although Ericsson was responsible for its creation (SIG).

The Bluetooth Special Interest Group (SIG) is an industry consortium composed of companies from the telecommunications, computer, and semiconductor manufacturing sectors. There are now approximately 2000 participating businesses. The Bluetooth Special Interest Group (SIG) manages a certification scheme to guarantee that all Bluetooth devices are up to par and can communicate with one another. In order to get the Bluetooth logo, a product must pass stringent compatibility tests.

Specifics for the Technically Mindful

The maximum throughput that may be sent with Bluetooth is 1 Mbps. The full-duplex and asymmetric transmission data speeds are 432 and 721 kbps, respectively.

Bluetooth operates at 2.4 GHz, which is part of the unlicensed ISM (Industrial, Scientific, and Medical) band. This frequency range is widely accessible across the world. Some nations have set aside this frequency range for military use, but even those nations are working to open it up to civilians. Because Bluetooth and 802.11b WLAN devices utilize the same frequency spectrum, coexistence between the two is difficult.

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