Wi-Fi
Wifi is the short form of wireless fidelity.it is a popular wireless system, where using radio wave ,making any device high powerful Internet From which you can transfer data very easily.It is also known as IEEE 802.11B.it's speed is 11 Mb/s.
It's cost is low.And it's speed is very much.it has become advance.now IEEE 802.11G is using,which speed is 54 Mb/s.
Benefits of WiFi,
1.It is low cost than any other service.
2.by using router you can run a lot device by one wifi
3.the products of WiFi are Wi-Fi alliance permitted.
4.You can use wifi in any parts of the world,
5.it's low cost of electricity has made battery powerful.
The bad effect of wifi:
1.it's data transfer is very slow,
2.you cannot get its coverage in other area, because it connects in an small area.
3.network security is very low.
It's coverage area is about 100 metres.It runs by using half duplex mode.but quality of service is risky thorough wifi.i also use wifi.i love WiFi.i pay 500 taka for 3Mb/s wifi speed.wifi is better than mobile data/wimax.tp link router is the best.there are other router,they are tenda,d-link etc.we need to use wi-fi for good intention.i am a wifi user.