| If you already have a wireless network
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| | Bluetooth?Mobile phones with Bluetooth
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| for your computers, you may be very
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| | are very popular, and so are PDAs -- the
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| interested in what's coming next. Would
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| | instant synchronisation of addresses and
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| you like it if your PDA, your mobile
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| | calendars to a computer is a useful
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| phone, your mp3 player and almost
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| | feature. Other than that, almost anything
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| everything else you connect to your
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| | that would usually use USB can be done
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| computer could be wireless too? It's
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| | using Bluetooth, including digital
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| already a reality...Personal Area
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| | cameras, mp3 players, printers, and even
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| Network.Using wireless networking with
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| | mice and keyboards. If you take a look
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| your personal gadgets is often called
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| | through the comprehensive list of
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| PAN, which stands for Personal Area
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| | Bluetooth 'profiles' (kinds of devices
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| Network. The idea is that, in the future,
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| | that could, in theory, be Bluetooth
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| we'll all have laptop computers with
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| | enabled), it includes cordless phones,
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| their batteries charged and no more need
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| | faxes, headsets, and even
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| to connect any wires to them at all --
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| | video.Basically, more than anything,
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| you just place your Bluetooth device near
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| | Bluetooth is a replacement for USB: some
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| the computer, and the computer sees it
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| | say that while 802.11 wireless networking
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| and can use it straightaway.Bluetooth has
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| | is wireless Ethernet, Bluetooth is
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| been around and in-use since 1999, and
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| | wireless USB.Not Just for Computers.Part
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| it's only getting more popular. It was
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| | of the power of Bluetooth is that it
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| designed to be secure, low cost, and easy
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| | isn't just used to connect things to
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| to use from day one.There are two classes
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| | computers -- it can be used to connect
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| of Bluetooth that are in popular use:
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| | almost anything to anything else, if both
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| class 1 and class 2. Class 2 is the most
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| | things are Bluetooth-enabled and
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| common and cheaper standard, allowing you
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| | recognise each other.Mobile phones, in
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| to use a device that is up to 10 metres
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| | particular, take advantage of this.
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| (32 feet) away. Class 1 is rarer, but you
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| | Hands-free headsets often use Bluetooth
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| can still find devices that use it easily
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| | to communicate with the phone. Some cars,
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| enough, and it has ten times the range:
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| | for example, now have on-board computers
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| 100 metres or 320 feet.How Does It
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| | that will connect with a Bluetooth phone
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| Work?Bluetooth is more flexible than
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| | and allow you to make hands-free calls,
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| 802.11 wireless networking, in exchange
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| | regardless of where the phone is in the
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| for the shorter range. Essentially, a
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| | car (even if you've left it in your bag
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| Bluetooth-enabled computer has one
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| | in the trunk!)On top of that, of course,
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| Bluetooth receiver installed in it, and
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| | Bluetooth devices can communicate with
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| this receiver can then be used with up to
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| | each other. This has led to some people
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| 7 nearby Bluetooth devices. On the other
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| | sending messages from their Bluetooth
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| end, wireless devices do not need to have
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| | PDAs to others in close range -- not an
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| Bluetooth installed if they support it --
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| | especially useful feature, but quite fun.
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| it is already integrated.Like 802.11,
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| | This is called 'bluejacking', and the
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| Bluetooth works by using radio signals to
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| | first recorded instance of it was a man
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| create bandwidth. It is not, though, the
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| | who sent a Bluetooth message to another
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| same thing as an old-style wireless mouse
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| | man's Nokia phone while they were in a
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| or keyboard, which required a receiver to
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| | bank together. What did the message say?
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| be plugged into one of your computers'
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| | 'Buy Ericsson'.Since then, it has become
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| ports, and didn't have range or stability
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| | possible to send images by bluejacking,
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| anywhere near that of Bluetooth.Many
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| | and it is widely believed to be the
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| computers now come with built in
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| | newest advertising medium -- yes, it lets
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| Bluetooth, especially Apple Macs. If you
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| | billboards send messages to your phone, a
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| want to add Bluetooth to a computer that
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| | practice known as 'bluecasting'. Whether
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| doesn't come with it pre-installed, you
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| | you think that's cool or annoying, of
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| should probably use a USB to Bluetooth
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| | course, is your choice.Joe Byrne is a
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| adapter, although internal Bluetooth
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| | computer specialist specializing in
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| devices to install in your computer are
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| | network communications and Voice over
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| available. If you have a laptop and a
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| | Internet Protocol. Click on Voice over
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| spare PCMCIA slot, you can get Bluetooth
| |
| | Internet Protocol for more information on
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| cards for that too.What Can You Do With
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| | VoIP.
|
