Bluetooth, on the other hand, is aimed not just at PCs, but at a whole range of electronic devices, from your PalmPilot to your mobile phone, and pretty much any device you might ever want to share bits with.
It not only created the hand-held computer category and the first workable handwriting-recognition system, it also pioneered thewhole idea of doing digital tasks -- including e-mail and Internet browsing -- on a device other than the PC.