GPS or Global Positioning System uses a small mobile receiver and software to receive signals from satellites originally used by the U.S. military, but now available to everyone. The GPS software processes the satellite signals to calculate the exact location of the receiver, in latitude and longitude.
The system enables a GPS receiver to display your position, speed, and direction on a moving street map that scrolls as you drive, giving you a bird's-eye view of your route. A properly equipped GPS unit also can generate instant turn-by-turn directions as you drive. GPS units come in all sizes, shapes, and costs.
The system enables a GPS receiver to display your position, speed, and direction in a moving image that scrolls as you ride, giving you a bird's-eye view of your route. A properly equipped GPS unit also can generate instant turn-by-turn directions as easily navigate lakes, rivers, or oceans.
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