27 Facts About Bluetooth


Bluetooth is a short-range wireless technology standard that is used for exchanging data between fixed and mobile devices over short distances and building personal area networks.

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Bluetooth is managed by the Bluetooth Special Interest Group, which has more than 35,000 member companies in the areas of telecommunication, computing, networking, and consumer electronics.

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The Bluetooth SIG oversees development of the specification, manages the qualification program, and protects the trademarks.

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Name "Bluetooth" was proposed in 1997 by Jim Kardach of Intel, one of the founders of the Bluetooth SIG.

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Bluetooth was only intended as a placeholder until marketing could come up with something really cool.

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Development of the "short-link" radio technology, later named Bluetooth, was initiated in 1989 by Nils Rydbeck, CTO at Ericsson Mobile in Lund, Sweden.

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In May 1998, the Bluetooth SIG was launched with IBM and Ericsson as the founding signatories and a total of five members: Ericsson, Intel, Nokia, Toshiba and IBM.

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Bluetooth was chosen, since Wi-Fi was not yet readily available or supported in the public market.

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Bluetooth divides transmitted data into packets, and transmits each packet on one of 79 designated Bluetooth channels.

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Bluetooth is a standard wire-replacement communications protocol primarily designed for low power consumption, with a short range based on low-cost transceiver microchips in each device.

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Historically, the Bluetooth range was defined by the radio class, with a lower class having larger range.

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Wi-Fi and Bluetooth are to some extent complementary in their applications and usage.

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Bluetooth serves well in simple applications where two devices need to connect with a minimal configuration like a button press, as in headsets and speakers.

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Bluetooth exists in numerous products such as telephones, speakers, tablets, media players, robotics systems, laptops, and game console equipment as well as some high definition headsets, modems, hearing aids and even watches.

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Nonetheless, Bluetooth is useful when transferring information between two or more devices that are near each other in low-bandwidth situations.

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Unlike its predecessor, IrDA, which requires a separate adapter for each device, Bluetooth lets multiple devices communicate with a computer over a single adapter.

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Microsoft's own Bluetooth dongles have no external drivers and thus require at least Windows XP Service Pack 2.

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Bluetooth Low Energy, previously known as Wibree, is a subset of Bluetooth v4.

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The provisional names Wibree and Bluetooth ULP were abandoned and the BLE name was used for a while.

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Bluetooth 5 provides, for BLE, options that can double the speed at the expense of range, or provide up to four times the range at the expense of data rate.

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Bluetooth devices are fabricated on RF CMOS integrated circuit chips.

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Bluetooth is defined as a layer protocol architecture consisting of core protocols, cable replacement protocols, telephony control protocols, and adopted protocols.

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RFCOMM provides for binary data transport and emulates EIA-232 control signals over the Bluetooth baseband layer, i e, it is a serial port emulation.

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Many services offered over Bluetooth can expose private data or let a connecting party control the Bluetooth device.

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In 2001, Jakobsson and Wetzel from Bell Laboratories discovered flaws in the Bluetooth pairing protocol and pointed to vulnerabilities in the encryption scheme.

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In 2004 the first purported virus using Bluetooth to spread itself among mobile phones appeared on the Symbian OS.

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The worm began targeting mobile phones using Symbian OS using Bluetooth enabled devices to replicate itself and spread to other devices.

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