Answer – GPS stands for “Global Positioning System.”

Explanation: 

GPS is a satellite-based navigation system that provides position, navigation, and timing (PNT) services anywhere on Earth. The GPS system comprises three components: satellites, ground stations, and receivers. Satellites mimic the stars in constellations, their positions known at any given time. Ground stations oversee and manage the satellites, aiding in determining their locations, both past and projected. Receivers, such as those found in phones or cars, continuously listen for signals from these satellites, utilizing them as a vast measuring tool between the receiver and satellites. Once a receiver calculates its distance from four or more satellites, precise location determination occurs. Within moments, from thousands of miles away in space, pinpointing one’s ground location becomes possible with remarkable accuracy, often within a few yards..

The U.S. Department of Defense originally developed the NAVSTAR for military use. Now, however, GPS has evolved far beyond its original military purpose and has created a revolution in personal and commercial navigation. Here are some of its popular uses: 

• Navigation: GPS is widely used for navigation purposes, providing real-time and accurate location information to users. It is commonly used in car navigation systems, smartphones, and other devices to help individuals find their way.
• Mapping and surveying: GPS technology allows for precise mapping of geographic features, tracking changes in landscapes, and conducting surveys with high accuracy.
• Transportation and logistics: GPS is integral to the transportation industry, facilitating route planning, tracking vehicles, and optimizing logistics. It is widely used in shipping, aviation, and public transportation systems.
• Military applications: GPS has various military applications, including navigation, targeting, and tracking. Military forces use specialized GPS systems to enhance situational awareness and coordinate operations. Battlefield missiles and artillery projectiles also use GPS signals to determine their positions and velocities.

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