Bluetooth

Updated: 08/31/2020 by Computer Hope
Bluetooth logo

Bluetooth is a computing and telecommunications industry specification that describes how devices can communicate with each other. Devices that use Bluetooth include computers, a computer keyboard and mouse, personal digital assistants, and smartphones.

Bluetooth is an RF technology operating at 2.4 GHz, has an effective range of 32-feet (10 meters), varying by power class, a transfer rate of 1 Mbps, and throughput of 721 Kbps.

How is Bluetooth used?

SMC Bluetooth adapter

An example of how Bluetooth could be used is connecting a smartphone to a computer without any wires or special connectors. The picture is an example of a USB Bluetooth adapter from SMC.

Below are some other examples of how Bluetooth is used.

  • Bluetooth headphones - Headphones that connect to any Bluetooth device.
  • Bluetooth keyboard and Bluetooth mouse - Wireless keyboards and mice.
  • Bluetooth speaker - Speakers that connect to any Bluetooth audio device.
  • Bluetooth car - A car with Bluetooth can make hands-free calls in the car.
  • Bluetooth watch or Bluetooth health monitor - Bluetooth wrist devices that transmit data to other devices over Bluetooth.
  • Bluetooth lock - Door lock that allows you to remotely lock and unlock a door.

What is the Bluetooth symbol?

Bluetooth symbol

The Bluetooth symbol resembles two and a half triangles pointing to the right. The symbol is a bind-rune representing "H" and "B," the initials for Harald Bluetooth, a Denmark Viking king (c. 958 - c. 970) that helped unite Denmark and Norway. It is named after Harald Bluetooth because the Bluetooth technology was designed as a universal wireless technology for use by everyone.

Who invented Bluetooth, and when?

The answer to this question varies based on whether you consider the technology or device application to be the invention date. However, the most widely-credited inventor is Jaap Haartsen, who laid the foundations for the technology that later became known as Bluetooth in 1994.

Access point, Cell phone, Cordless, Infrared, NFC, Phone terms, Transceiver, Wibree