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BLUTOOTH & WI-FI
Posted Date: 22 Mar 2008 Resource Type: Articles/Knowledge Sharing Category: Computer & Technology
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Posted By: arunkumar Member Level: Gold
Rating:  Points: 5
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BLUETOOTH
System support
The easiest way to enable Bluetooth
support in a system is to
attach Bluetooth USB sticks.
Some motherboards, such as the
MSI KT3 Ultra2-BR, come with
inbuilt Bluetooth support. Once
plugged into the system, you’ll
have to install the drivers for the
device to start using it. The system
will then periodically scan
the surroundings for Bluetooth
devices.
Pros
Currently, Bluetooth offers the
best solution for hassle-free
communication between
portable devices. With low
power consumption and
user friendliness, Bluetooth
has all the requirements of a
personal area network. Those
who need to transfer data on
a regular basis and prefer
portable device should
definitely opt for Bluetooth.
Cons
In spite of promises that
Bluetooth support will be
cheap, consumers avoid it
mainly due to cost. A Bluetooth
USB stick costs about
Rs 2,000, which may be on
the higher side for mainstream
customers. Don’t think of this
technology as a LAN replacement,
though.
Devices using Bluetooth
Bluetooth is slowly beginning to
reach the hands of consumers.
Most premium-range mobiles and
PDAs support Bluetooth; it has
started appearing in the mainstream
range as well. Users buying
mobile phones, or PDAs
should look for Bluetooth enabled
devices. Using Bluetooth, you can
transfer contacts, ring tones,
images, etc., between devices easily
WI-FI
System support
For a system to connect to a
WiFi network, it should have
a WiFi network card, or an
access point connected to it.
WiFi network cards are like
normal network cards that
plug into PCI slots, but have
a protruding antenna. It’s
also possible to plug an
external WiFi adapter into a
USB port. Once the network
cards are installed and configured,
the system can connect
to any WiFi network.
Hardware access points can
be connected to network
equipment such as a bridge,
or it can be connected to a
system that has access to a
wired network. It’s also possible
to install software that
will convert the system into
an access points. Hardware
access points are generally
used in commercial hot
spots, while software access
points are used to share an
Internet connection in
homes and SoHos.
Pros
Given the current situation, WiFi
should be adopted when there is a
demand for high speeds on the move.
WiFi is suited for corporates with several
executives roaming around the
office with their laptops. Homes looking
for a means to share a broadband
Internet connection can also consider
adopting WiFi. If you’re buying a laptop,
look for WiFi-enabled devices.
Cons
A WiFi setup is rather expensive
when compared to a regular LAN.
Also, since WiFi drains
batteries much quicker, PDA
users should avoid using it—
especially if they have a
Bluetooth option available. It is
difficult to provide security in
a WiFi network, as it is difficult
to control access to the network.
Devices using
WiFi
While WiFi may be
widely used for
communication
between computers,
there are PDAs that
support it. It’s also
possible to add WiFi
support to
a PDA by inserting
a WiFi card into the
SD (Secure Digital)
slot. PDAs such as
the Toshiba e750
have inbuilt support
for WiFi. In March
2003, Nokia
announced plans
to build mobile
phones that can
seamlessly switch
between 802.11b
and public networks.
The major problem
with WiFi is the high
power consumption,
which mobile
devices just can’t
afford.
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