The Global Positioning System, or GPS, is a satellite-based navigation system that allows users to determine their exact location anywhere on Earth. It operates through a network of satellites that transmit signals to GPS receivers, enabling precise positioning and timing information. Originally developed for military use, GPS has become an essential tool for various applications, including aviation, maritime navigation, and everyday activities like driving and hiking. Its accuracy and reliability have transformed how we navigate and interact with our environment, making it a vital component of modern technology.