At present the coordinates or locations on the Earth. Rely on satellite system called GPS (Global Positioning System), which can be applied on a mobile phone to work together correctly and precisely. GPS systems are installed along with the price of mobile phones with higher-priced machines that do not have GPS, this article discusses GPS system. Virtual can indicate the location of a mobile phone without GPS on a. This system is called the mvGPS system, which can be used to identify the position through the popular Social Network, that is, twitter.
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