Explain the difference between GIS and GPS
What will be an ideal response?
Answer: A Geographic Information System is a computer-based system that not only captures and stores information, but also is able to execute queries, do analysis, and display geographic data. Geographic Information Systems can be used to produce maps that are more accurate and attractive than those drawn by hand. With GIS, the position of any object on Earth can be measured and recorded with mathematical precision and then stored in a computer. A map can be created by asking the computer to retrieve a number of stored objects and combine them to form an image, with each information type stored as a layer.
A GPS, or Global Positioning System is a system that accurately determines the precise position of something on Earth. The GPS system in use in the United States includes two dozen satellites placed in predetermined orbits, a series of tracking stations to monitor and control the satellites, and receivers that compute position, velocity, and time from the satellite signals.
Both GIS and GPS are high-tech systems that provide excellent tools for information gathering and manipulation. But the two are very different. GPS is used to locate places on Earth whereas GIS is used to organize information to make sense of it.
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