Why “blue tooth” is called like that?
Origin of the name The word Bluetooth is an anglicized version of Old Norse Blátönn or Danish Blåtand, the name of the tenth-century king Harald I of Denmark and Norway, who united dissonant Scandinavian tribes into a single kingdom. The implication is that Bluetooth does the same with communications protocols, uniting them into one universal standard.[1][2][3] It is possible that the name may have been inspired less by the historical Harald, than by the loose interpretation of him in The Long Ships by Frans Gunnar Bengtsson, a Swedish Viking-inspired novel.[citation needed] Origin of the Bluetooth logo The Bluetooth logo design merges the Germanic runes analogous to the modern Latin letters H and B: (for Harald Bluetooth) (Hagall) and (Berkanan) merged together, forming a bind rune. Implementation Bluetooth uses a radio technology called frequency-hopping spread spectrum, which chops up the data being sent and transmits chunks of it on up to 79 frequencies. In its basic mode, the modu
