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Because your GPS has not mapped that particular area where you are travelling, and it doesn't understand, so it freezes. It is quite simular to a computer, as in when it does not recognize data, it has a heart attack and freezes.
Yes GPS is plugged in and comes on all by itself, it can drain the battery.
Yes
Yes, you need to set up your GPS with a computer first
no
you wont know until it is the futre mabey 2015
In addition to providing directions, GPS technology can be used for surveillance and safety. The most basic GPS tracking systems allow users to follow the location of a person, car, pet, or anything that moves or is moved. The major components of a GPS tracking system include the actual tracker and the receiver. The receiver is usually plugged into a computer's USB port, and then the history of the tracker's movement can be reviewed. GPS trackers are very affordable and they are similar in size to USB flash drives.
you wont know until it is the futre mabey 2015
GPS
A GPS unit bought anywhere will work anywhere, although some words may appear on the display in a language that you don't recognize.
PDA's can come with GPS technology and it works through the same function as other GPS systems, via satellite.
GPS stands for Global Positioning System, one plugged into or installed into your phone it can indeed track your phone, it can get your exact location and provide information of your past movements. Refer to: http://www.cellphone-tracker.org/gps-tracking-a-cell-phone