Bluetooth Software
"Bluetooth" now commonly refers to the Bluetooth wireless specification designed by Ericsson, the major Swedish telecommunications organization, to enable cable-free connections between computers, mobile phones, PDAs, printers, etc. The Bluetooth communications protocol in these devices is named after this king, ostensibly due to his abilities to make diverse factions communicate with each other. The Bluetooth logo consists of the Nordic runes for his initials, H and B (Long-branch runes version).
Read more about this topic: Harald Bluetooth