okey guys that's enough Let's look at our topic !
This week we continue to Wireless Technology by looking to Wi-Fi and blue-tooth.
# Bluetooth
-it designed for short range (10m)
-we can send the information using by:
mobile phones, laptops, PCs, printers, digital cameras.
-Frequency 2.4 GHz
-Data speed up to 3Mbps
How data transfer by Bluetooth ??? It is clear and easy !
Let's watch this helpful video :)
# Wi-fi produced for mobile phone but nowadays also we can use it
for more services such as ; Internet, Voip (phone access), Tv, DVD
players etc. Wife use same radio frequency as Bluetooth but
the speech is more powerful than bluetooth.
I draw a comparison table :) i wish it will help you :)
Wireless networking Technologies Bluetooth VS Wi-fi J
|
Bluetooth Wi-Fi
|
Frequency
|
Low
|
High
|
Power
|
low
|
hight
|
Security
|
2.4 GHz
|
2.4Ghz
|
Cost
|
Low
|
High
|
Primary devices
|
Bluetooth adaptor onb all the devices connecting with each other. Eg.mobile phone
|
Devices of the network, a wireless router etc.
|
Range
|
1O merters
|
100 meters
|
Standard
|
IEEE – 802.15.1
|
IEE – 802 .11
|
Data rate
|
723 kkbits/s
|
11 to 105 Mbits/s
|
Piconet and scatternet
The basic unit of networking in Bluetooth is a piconet. A piconet is the type of connection that is formed between two or more Bluetooth-enabled devices. scatternet is a number of interconnected piconets that supports communication between more than 8 devices.
Broadband
The
term broadband refers to any type of transmission technique
that carries several data channels over a common wire. For example, combines separate voice and data
channels over a single telephone line.
Thank you so much for reading my Blog :)
terima kasih :) jumpa lagi :)
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