Bluetooth? ??what is it??why blue- tooth ??what is the first time have been used and for what???
Bluetooth is a wireless technology standard for exchanging data over short distances (using short-wavelength UHF radio waves in the ISM band from 2.4 to 2.485 GHz) from fixed and mobile devices, and building personal area networks (PANs).
Bluetooth is a standard for wireless communication over short distance. Technically called IEEE802.15.1. it uses the UHF radio waves in the ISM band from 2.4 to 2.485 GHz. It was launched for the first time in 1989 to develop wireless headsets. for more information you can consult google
Definition: Bluetooth is a wireless technology that allows devices to communicate, or transmit data or voice, wirelessly over a short distance. Although the Bluetooth SIG doesn't offer a concise definition of Bluetooth, they describe it as "a short-range communications technology intended to replace the cables connecting portable and/or fixed devices while maintaining high levels of security."
Source: https://www.lifewire.com/what-is-bluetooth-2377412
Bluetooth is a wireless technology standard for exchanging data over short distances (using short-wavelength UHF radio waves in the ISM band from 2.4 to 2.485 GHz) from fixed and mobile devices, and building personal area networks (PANs).
Bluetooth is a wireless technology standard for exchanging data over short distances from fixed and mobile devices developed by the Bluetooth Special Interest Group.
Source: Wikipedia
It is indeed interesting question, Al Timimi Zahra,
Blue tooth is a portable device and uses wireless communication protocol. It is a short range data communication platform. Initially it came up for consumer as connecting remote headset to mobile. Now this has many more applications. In Feb 1998, five companies (Ericsson, Nokia, IBM, Toshiba and Intel) formed the Bluetooth SIG - Special Interest Group.
The first and foremost version was published in July,1999 (Version-1.0a), 1.0b in Dec 1999, 1.0c Nov 2000. However usable version 1.1 was released in Feb 2001 which was first used by IEEE to unite personal computing and telecommunications devices.
Blue tooth technology is now developing 5G and Internet of things IoT and it is expected to see many more innovations this year.
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Dear Colleagues, Good Day,
Bluetooth Technology
What are the Applications? (Major Portion of Content Provided by Puneet Gupta - a MobileInfo.Com Technology Writer)
Bluetooth has a tremendous potential in moving and synchronizing information in a localized setting. Potential for Bluetooth applications is huge, because we transact business and communicate more with people who are close by than with those who are far away - a natural phenomenon of human interaction. The following list represents only a small set of potential applications - in future many more imaginative applications will come along:
- By installing a Bluetooth network in your office you can do away with the complex and tedious taskof networking between the computing devices, yet have the power of connected devices. No longer would you be bound to fixed locations where you can connect to the network. Each Bluetooth device could be connected to 200 other devices making the connection of every device with every other possible. Since it supports both point to point and point to multipoint it will virtually make the maximum number of simultaneously linked devices unlimited.
- The Bluetooth technology connects all your office peripherals wirelessly. Connect your PC or notebook to printers, scanners and faxes without the ugly and trouble some cable attachments. You can increase your freedom by connecting your mouse or the keyboard wirelessly to your computer.
- If your digital cameras in Bluetooth enabled, you can send still or video images from any location to any location without the hassle of connecting your camera to the mobile phone on the wireline phone.
- Bluetooth allows us to have three way phones. At home, your phone functions as a portable phone (fixed line charge). When you're on the move, it functions as a mobile phone (cellular charge). And when your phone comes within range of another mobile phone with built-in Bluetooth wireless technology it functions as a walkie-talkie (no telephony charge).
- In meetings and conferences you can transfer selected documents instantly with selected participants, and exchange electronic business cards automatically, without any wired connections.
- Connect your wireless headset to your mobile phone, mobile computer or any wired connection to keep your hands free for more important tasks when you're at the office or in your car.
- Have automatic synchronization of your desktop, mobile computer, notebook (PC-PDA and PC-HPC) and your mobile phone. For instance, as soon as you enter your office the address list and calendar in your notebook will automatically be updated to agree with the one in your desktop, or vice versa.
- Automatic Message Delivery: Compose e-mails on your portable PC while you're on an airplane. As soon as you've landed and switched on your mobile phone, all messages are immediately sent.
- Upon arriving at your home, the door automatically unlocks for you, the entry way lights come on, and the heat is adjusted to your pre-set preferences.
- IBM researchers are working on a number of personal devices like a WatchPad that could be connected with other devices through Bluetooth. The Watch Pad is very thin and contains 8MB of RAM. They are also working on a version of CyberPhone called CyberPhone - that can project data onto a small mirror. The CyberPhone can show as much information as a small PDA because of high resolution VGA screen.
You enter the airport-waiting lounge, equipped with Bluetooth-enabled Internet ports. Via the ports, you and other guests use Bluetooth-enabled laptops, PDAs, and other devices to access your office or home-based servers via the airline server. Using voice-over IP, you also make "free" Internet voice calls courtesy of your airline."
See the source, please:
http://www.mobileinfo.com/Bluetooth/applic.htm
The name "Bluetooth" is an Anglicised version of the Scandinavian Blåtand/Blåtann (Old Norse blátǫnn), the epithet of the tenth-century king Harald Bluetoothwho united dissonant Danish tribes into a single kingdom and, according to legend, also introduced Christianity. The idea of this name was proposed in 1997 by Jim Kardach of Intel who developed a system that would allow mobile phones to communicate with computers.At the time of this proposal he was reading Frans G. Bengtsson's historical novel The Long Ships about Vikings and King Harald Bluetooth The implication is that Bluetooth does the same with communications protocols, uniting them into one universal standard.
Dr K N Sheth, Hazim and Jackson 's answers are quite satisfactory. I go with them
تحية طيبة مباركة عليكم، اظن ان مصطلح بلوتوث هو مختصر لتقنية تبادل الملفات بأنواعها بين الاجهزة التي يتظمنها وغالباً ما يعبرون عن هذه التقنيات باسماء الالوان او النبات او الحيوان كجانب الدعاية الاعلانية الملفتة للنظر نحو شعبية تلك التقنية، وشكراً لكم
Dear Colleagues, Good Day,
"Introduction to Bluetooth
By William Stallings
Bluetooth is an always-on, short-range radio hookup that resides on a microchip. It was initially developed by Swedish mobile phone maker Ericsson in 1994 as a way to let laptop computers make calls over a mobile phone. Since then, several thousand companies have signed on to make Bluetooth the low-power short-range wireless standard for a wide range of devices. Industry observers expect Bluetooth to be installed in billions of devices by 2005 (Business Week, 18 September 2000).
The Bluetooth standards are published by an industry consortium known as the Bluetooth SIG (special interest group).
The concept behind Bluetooth is to provide a universal short-range wireless capability. Using the 2.4 GHz band, available globally for unlicensed low-power uses, two Bluetooth devices within 10 m of each other can share up to 720 Kbps of capacity. Bluetooth is intended to support an open-ended list of applications, including data (such as schedules and telephone numbers), audio, graphics, and even video. For example, audio devices can include headsets, cordless and standard phones, home stereos, and digital MP3 players. Following are some examples of the capabilities that Bluetooth can provide consumers:
- Make calls from a wireless headset connected remotely to a cell phone.
- Eliminate cables linking computers to printers, keyboards, and the mouse.
- Hook up MP3 players wirelessly to other machines to download music.
- Set up home networks so that a couch potato can remotely monitor air conditioning, the oven, and children's Internet surfing.
- Call home from a remote location to turn appliances on and off, set the alarm, and monitor activity.
Bluetooth Applications
Bluetooth is designed to operate in an environment of many users. Up to eight devices can communicate in a small network called a piconet. Ten of these piconets can coexist in the same coverage range of the Bluetooth radio. To provide security, each link is encoded and protected against eavesdropping and interference.
Bluetooth provides support for three general application areas using short-range wireless connectivity:
- Data and voice access points. Bluetooth facilitates real-time voice and data transmissions by providing effortless wireless connection of portable and stationary communications devices.
- Cable replacement. Bluetooth eliminates the need for numerous, often proprietary cable attachments for connection of practically any kind of communications device. Connections are instant and are maintained even when devices are not within line of sight. The range of each radio is approximately 10 m, but can be extended to 100 m with an optional amplifier.
- Ad hoc networking. A device equipped with a Bluetooth radio can establish instant connection to another Bluetooth radio as soon as it comes into range."
Please, see the source:
http://www.informit.com/articles/article.aspx?p=23760
Dear Colleagues, Good Day,
"How does Bluetooth work?
Definition
A Bluetooth technology is a high speed low powered wireless technology link that is designed to connect phones or other portable equipment together. It is a specification (IEEE 802.15.1) for the use of low power radio communications to link phones, computers and other network devices over short distance without wires. Wireless signals transmitted with Bluetooth cover short distances, typically up to 30 feet (10 meters).
It is achieved by embedded low cost transceivers into the devices. It supports on the frequency band of 2.45GHz and can support upto 721KBps along with three voice channels. This frequency band has been set aside by international agreement for the use of industrial, scientific and medical devices (ISM).rd-compatible with 1.0 devices.
Bluetooth can connect up to “eight devices” simultaneously and each device offers a unique 48 bit address from the IEEE 802 standard with the connections being made point to point or multipoint.
History Of Bluetooth:
Bluetooth wireless technology was named after a Danish Viking and King, Harald Blatand; his last name means “Bluetooth” in English. He is credited with uniting Denmark and Norway, just as Bluetooth wireless technology is credited with uniting two disparate devices.
The Bluetooth technology emerged from the task undertaken by Ericsson Mobile Communications in 1994 to find alternative to the use of cables for communication between mobile phones and other devices. In 1998, the companies Ericsson, IBM, Nokia and Toshiba formed the Bluetooth Special Interest Group (SIG) which published the 1st version in 1999.
The first version was 1.2 standard with a data rate speed of 1Mbps. The second version was 2.0+EDR with a data rate speed of 3Mbps. The third was 3.0+HS with speed of 24 Mbps. The latest version is 4.0.",...
Please, see the website link for more detail:
https://www.elprocus.com/how-does-bluetooth-work/
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