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Now a days wifi is more usefull anywehere. It's a brodband internet connection. Its gives us to unlimited inernet in low cost.
Wi-Fi speed also not like that internet also. Wi-Fi download speed and browsing speed r YouTube speed is soo fast more then internet. In WiFi you can share people's your connection and save your brodband connection bill also. More this benefits in wifi have some bad side also.
If your electricty is gone then wifi automatically off. You can't browsing anything in this time. Or if you can't paid Wi-Fi bill time to time then every months in last days wifi automatically stopped working.
Our need Benefit of wifi