GPS (Global Positioning System) is a satellite-based navigation system that provides location and time information anywhere on or near the Earth's surface. The system consists of a network of satellites orbiting the Earth, ground control stations, and GPS receivers.

To use GPS, a receiver must be able to receive signals from at least four GPS satellites. The receiver uses the signals to determine the distance to each satellite and then uses this information to calculate the receiver's position on the Earth's surface.

GPS is used in a wide range of applications, including navigation, surveying, mapping, and tracking. It is also used in mobile devices such as smartphones and tablets for location-based services, and in vehicles for navigation systems.

There are also various types of GPS solutions available, including standalone GPS devices, GPS-enabled smartphones, and GPS tracking systems. Standalone GPS devices are typically used for outdoor activities like hiking or driving, while GPS-enabled smartphones are used for a wide range of location-based services. GPS tracking systems are commonly used in logistics and fleet management to track vehicles and assets in real-time.
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