What is GIS (Geographic Information Systems)
The Geographic Information System (GIS) is a computer system that is used to construct, record, analyze, manipulate, and display geographic information. Geographic information is simply any data that is geographically referenced or that has known earth coordinates(i.e. Latitude/Longitude) Features such as points(e.g. wells, street signs), lines(e.g. roads, rivers) and polygons(e.g. houses, crop fields) can be created in a GIS and coordinated with other databases into one large GIS, and then queries and decisions can be made on the entire GIS or specific elements depending on the desired application. GIS Applications : Retail Most new out-of-town supermarkets are sited with the aid of a sophisticated GIS. The GIS is used to store socioeconomic details of possible customers within the proposed area. A catchment area for a store may be developed by cal...
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