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> A **g**eographic **i**nformation **s**ystem (GIS), or geographical information
> system captures, stores, analyzes, manages, and presents data that is linked
> to location. Technically, GIS is geographic information systems which includes
> mapping software and its application with remote sensing, land surveying,
> aerial photography, mathematics, photogrammetry, geography, and tools that
> can be implemented with GIS software. Still, many refer to “geographic
> information system” as GIS even though it doesn't cover all tools connected
> to topology.

//From the Wikipedia article on [[http://en.wikipedia.org/wiki/Geographic%20information%20system|Geographic information system]]//