Global Positioning System (GPS) is a navigational aid originally developed for the military. The system simply receives signals. It is the appliedtechnology that gives the GPS its versatility.
If you have ever used map and compass, you will understand a little about how the GPS works. In order to find your position on a map, you need to have three points of reference,
Today GPS is available in most of the mobile devices and also tablet PC's are equipped with GPS software to track the location and for navigating.
Also car manufacturers provide GPS systems on board for easy drivabilty. Secret GPS tracking spy devices are also available to secretly monitor movement of the target person. |