Monday, June 8, 2015

Wireless Networks


Wireless n/w can be divided into 3 main categories-

1)System interconnection
2)Wireless LANs
3)Wireless WANs

System interconnection
It is all about interconnecting the components of a computer using short-range radio.
Some companies got together to design a short-range wireless n/w called Bluetooth to connect these components without wires.
Bluetooth also allows digital cameras,headsets,scanners and other devices to connect to a computer by merely being brought within range.
System interconnection n/w use the master slave paradigm. The system unit is normally the master,talking to the mouse,keyboard as slaves.
The master tells the slaves what addresses to use,when they can broadcast ,how long they can transmit, what frequencies they can use etc.

Next: Wireless LANs