This is a specification, developed by a consortium that includes IBM, Ericsson, Nokia, Intel, and Toshiba, for a radio system that allows electronic devices to communicate with each other over short distances without connecting cables. Some 1,200 companies pledged to support this new format when it was first announced, including giants like Microsoft.
It has been a buzzword in the computer industry since late 1999, and in its early days it seemed certain that the format would become universal, most commonly in portable computing devices and cellphones. One research firm in late 1999 predicted there would be 61 million Bluetooth-equipped appliances by 2003. Typical implementations would be for a hands-free (and wire-free) headset linked via Bluetooth to your mobile phone in your briefcase; immediate password access to your office through automatic sensing between Bluetooth appliances; or automatic data transfer between computers, say in a meeting. However, the slow-down in high-technology fields in 2001 has meant that take-up has been much smaller than originally expected, and other systems, like Wi-Fi, are competing head-to-head with Bluetooth.