GIS

From DictionGloss

Geographic Information System (GIS) - for the input, storage, retrieval, analysis and display of interpreted geographic data - usually map-like spatial representations, often called coverages or layers involving a three-dimensional matrix of time, location, and attribute or activity

Computer system capable of assembling, storing, manipulating, and displaying geographically referenced information (data identified according to its location). GIS is often used in archeology for making maps that plot artifact distribution over a site or sites over a geographic area. Requires extensive data gathering and sophisticated software.