Global positioning system (GPS), Glossary and Terms, Automotive, Motorcycle, Boat Dealers
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"Global positioning system (GPS)"
GPS units are installed in many vehicles to help drivers navigate from one destination to another. They employ satellites maintained by the U.S. Department of Defense to provide audible turn-by-turn directions for drivers as they travel. For those who do not have the devices installed in their vehicles, portable GPS units are also available, and these can be mounted on the dash.