The Global Positioning System (GPS) is a satellite-based navigation system that allows users to determine their precise location, velocity, and time information anywhere on the earth's surface. It consists of a network of satellites orbiting the earth, ground-based control stations, and GPS receivers. GPS works by calculating the distance between the user's receiver and multiple satellites and then using this information to triangulate the user's exact location. GPS technology has a wide range of applications, including navigation, mapping, surveying, agriculture, transportation, and outdoor activities.