I like to demo this using this file: Again, GIS = 'geographic information system'. This term isn't very descriptive, however: OK, so this software does something with information that is georeferenced...does it draw bar graphs? Pie charts? Create scatterplots?
For this topic, I think showing is better than telling, so I'll explain through looking at a file in two different environments. First, take a look at the following Google Earth file: http://www.cwoodcock.com/Civil_War_by_Campaign.kmz
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