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 What is GIS

At its core, GIS is the combination of graphical maps with tabular information (such as databases). It provides a tool to assist with solving real-world problems. This tool allows visualization and analysis of spatial information in ways not previously possible.

Databases do not lend themselves to visual interpretation like maps do. But with relatively simple GIS operations a user can transform a database into a picture that is easy to interpret at a glance. For example: A tabular listing of businesses sorted by address could have 10,000 entries.Looking at it might not be very useful. But by plotting their locations on a map and color coding by business classes, you can instantly tell if there is a restaurant near you.

 

 

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