What is a geographic coordinate system

The Geographic Coordinate System (GCS) is a system in which every single location on earth can be represented using a numerical identity based on the directions and intersections of longitude and latitude at that particular location.

Explanation:

The system of locating points on the surface of Earth using coordinates was invented by Eratosthenes around 2300 years ago. The modern-day Geographic Coordinate System is capable of locating points at distances that are only a second apart from each other.The Equator (0° latitude) and the Prime Meridian (0° longitude) serve as the reference points for this system.

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