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GPS navigation systems use a network of geosynchronous satellites that orbit the earth to determine the location of people or objects within a few feet of their location. GPS systems were first used to help the military in target location and in navigation. More recently the cost of GPS hardware has fallen, allowing accurate civilian use; this is also due to the enhancement of signal quality by the military.

There's nothing like GPS tracking systems for keeping tabs on a company's motorized assets. Not only do such systems help optimize drivers' delivery performance, it also makes estimating delivery times far more accurate. These global positioning systems also make it possible to map out the best routes to maximize driver efficiency.

A potential down-side to increasing use of these devices is the invasion of privacy some see these devices as presenting. Already, commercial drivers have their daily trips catalogued and analyzed. Similarly GPS tracking device technology has already been shown to be effective at allowing the tracking of individuals as these devices have been implemented in espionage for years.

GPS has come a long way since its inception. Its applications for the individual consumer have multiplied greatly. Now people can utilize their GPS systems for planning out their hiking routes, setting locations to camp or fish, or just finding their way around in any place they don't know well. A new kind of activity called "geocaching" is like a hide-and-seek game, using a container and a set of location coordinates.

GPS tracking systems can now be purchased from an automotive dealer as an additional feature to a new car. They can be mounted directly into the dash of the car for easy access to the driver. These devices provide searches which include restaurant and hotel mapping. It is nearly impossible to get lost with one of these devices in the car.

GPS devices are likely to become increasingly common as the cost of GPS devices decreases. GPS technology is quite flexible, and it is not difficult to envision it completely replacing current technologies such as paper maps. Nor is it difficult to imagine it playing an important role in new technologies. Who knows, perhaps one day GPS tracking will make loss and theft a thing of the past by providing real time information about the location of all our possessions.