The worldwide development of new technologies has recently produced a large number of new devices. One of the greatest achievements is certainly the GPS tracker for vehicles. A GPS tracker - in other words, the Global Positioning System Tracker - is a small device that relies on the worldwide radio navigation system and cellular networks to monitor the location of a vehicle or truck in real-time. The GPS is primarily both funded and controlled by the US Department of Defense. Incidentally, the entire system was originally developed for the US military. Today, however, there...