The GPS stands for Global Positioning System. The GPS refers to a structure of satellites as well as receivers that permit devices and people to identify their exact location on the world. The spirit of the system depends on twenty-four satellites, which track the planet two times a day. Devices, which are outfitted with GPS gear, obtain transmissions from as a minimum a number of the satellites and are capable to distinguish very accurate positioning information. Latest satellites are occasionally commenced to restore the old ones. Since the technology has enhanced, the price of devices, which comprises this technology, has dropped whereas the accuracy has enhanced. Little portable GPS recipients have turn out to be very reasonable, and the accurateness is remarkable. Accuracy differs based on differentfactors;however, it can be as superioras little yards (meters).