BLUE TOOTH

Blue tooth is named after a Scandinavian King, 10th century Danish King Harald Blatand.   However, the term blue tooth is really a wireless frequency specification at about 2.4 GHz.  Since blue tooth is a wireless specification operating at 2.4 GHz, one might consider it similar to 802.11b and 802.11g, wireless specifications for wireless internet handling.  But there are some important differences.  Blue tooth has a different control and data handling format and is meant for only short distances - unlike 802.11b which might transmit for 1000 feet or so if walls do not block it.

Since blue tooth is only meant for short distances, it is more of a technique to eliminate wires used for interconnecting nearby electronic items.  For example, blue tooth is a great way to eliminate the normal wire used for cellular headsets - leaving the user wireless with not wires to trip over while walking or get in the way while driving.  Blue tooth can also be used for wireless computer keyboards and wireless computer mice.  There is no question that we will see more uses of blue tooth in the future, for short wireless transmission usages and the elimination of wires.