Definition of global positioning system Global positioning system
We found 4 definitions of global positioning system from 4 different sources.
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What does global positioning system mean?
WordNet
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| global positioning system - a navigational system involving satellites and computers that can determine the latitude and longitude of a receiver on Earth by computing the time difference for signals from different satellites to reach the receiver | ||
| GPS | ||
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Wiktionary 
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global positioning system
A space-based global navigation satellite system (GNSS) that provides location and time information in all weather, anywhere on or near the Earth, where there is an unobstructed line of sight to four or more GPS satellites. It is maintained by the United States government and is freely accessible by anyone with a GPS receiver.
Wikipedia 
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Global Positioning System, also known as GPS, is a system of satellites in space which are circling the Earth.
It is one of three different satellite systems to help people find out where they are. This system sends and receives microwave signals to a receiver on Earth (called a GPS receiver) and tells the person holding the receiver where they are on Earth, whether they are moving or not (like traveling in a ship or auto), how fast they are moving, and what direction they are going.
The system has more than 24 satellites circling the Earth, all of them working together to tell people where they are.
The system was created by the Department of Defense of the United States (U.S.). In the beginning, it was only used by the U.S. military, but in 1983 President Ronald Reagan made an order to allow anyone to use the system.
GPS is commonly used in cars, cell phones, and GPS receivers.
