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Frequently Asked Questions

What is GIS and how is it used?

What is a geographic information system (GIS)? A Geographic Information System (GIS) is a computer system that analyzes and displays geographically referenced information. It uses data that is attached to a unique location. Most of the information we have about our world contains a location reference: Where are USGS streamgages located?

What are GIS used for?

GIS is most commonly used on the desktop – i.e., where the software is installed directly onto individual PCs. GIS for desktop allows for complex geoprocessing and analytical work, which need a large amount of computer processing power.

What is the difference between GIS and GPS?

Overall, the difference between a GPS and a GIS can be summed up: 1. The GPS (Global Position System) is a network that locates certain places here on earth whereas the GIS (Geographic Information System) is a computer program that process data linked to certain places or locations.


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