The full form of GPS is the Global Positioning System and it is a satellite navigation system used to identify the ground position of an object. The US military first used GPS technology in the 1960s and broadened into civilian applications over the next few decades. Today, many commercial products involve GPS receivers, such as smartphones, automobiles, GIS devices, and fitness watches. GPS are widely used for tracking and guiding vehicles, providing the best route from one place to another for shipping companies, airlines, drivers and courier services.