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what is wifi

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asked Jan 20, 2014 in Computers by anonymous
recategorized Jan 20, 2014 by Foodie
   

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WiFi is a wireless technology that the exchange of data in computers, smart phones and other devices through the electronic device via the Internet connection. It is a very fast Internet device.

answered Jan 20, 2014 by sallyb Inquisitive Expert (76,680 points)
my i-pad says i need to back it up. how do i do this?

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