Topic summary
Geographic
Extracted from the Wikipedia article Geography.
Geographic information systems
Geographic information systems (GIS) store information about the Earth for accurate, automated retrieval by a computer, appropriate to the information's purpose. In addition to all of the other subdisciplines of geography, GIS specialists must understand computer science and database systems. GIS has revolutionized the field of cartography: nearly all mapmaking is now done with the assistance of some form of GIS software. The science of using GIS software and GIS techniques to represent, analyse, and predict the spatial relationships is called geographic information science (GISc).