First Bluetooth Wireless Notebook at CeBIT
Hasdi Hashim writes, "NEC Corporation is using the first generation National Semiconductor chipset in the world's first Bluetooth interoperable notebook PCs with a built-in antenna, displayed at CeBit 2000."
802.11 is like a wireless lan. It replaces the built-in ethernet cables of your office with plugged-in base-stations. When you connect, you have to do all the same old configuration you had to do to access your lan. Although of course a smart sysadmin will do more than this, the average 802.11 system relies heavily on up-front security: you're either in or you're out, just like with a lan.
Bluetooth is like a replacement for all the other cables under your desk - the Palm cradle, the keyboard, the doohickey to connect to your digital camera, the printer cable, the cable to your external modem and the 20 foot phone cord out the back of that. It's low-power enough not to need either side plugged in, and the use-model specific interoperability profiles (comm port replacement, input device, ppp, OBEX, printer) mean that (ideally) you'll be able to walk up to an unfamiliar device and actually use it without too much set-up. Each device will enforce its own security.
It's still an open question whether BT will deliver on its promise. However, BT and 802.11 are not direct competitors. You wouldn't dream of using an 802.11 keyboard to type from across the room, just like you wouldn't dream of replacing all the ethernet cables in your office with bluetooth.
Preferential Voting: easy as 1-2-3
Bluetooth specs allow for overlapping piconets, and a member of a piconet (Bluetooth spec's terminology for an ad-hoc Bluetooth network)can also be a member of another piconet. This is called a scatternet and gives you a lot of room to grow. 8 is the maximum number of ACTIVE members in the piconet, some nodes might be parked (up to 255); and it only makes sense that you can have up to 8 active members since the capacity is about 721k anyway.
Please read this good article about Bluetooth to learn more about the technology, I'm sure it will make lots of things clear.
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