Global Positioning Systems, or GPS, are satellite-based navigation systems that allow users to determine their exact location anywhere on Earth. By receiving signals from a network of satellites orbiting the planet, a GPS device can calculate its position using triangulation. This technology is widely used in various applications, including driving directions, outdoor activities, and mapping services. GPS works by measuring the time it takes for signals to travel from satellites to the receiver. With at least four satellites in view, the system can provide accurate location data, typically within a few meters. This technology has revolutionized navigation and location tracking across the globe.