PLN Raju

Geoinformatics Division

Indian Institute of Remote Sensing, Dehra Dun

Abstract : The handling of spatial data usually involves processes of data acquisition, storage and maintenance, analysis and output. For many years, this has been done using analogue data sources and manual processing The introduction of modern technologies has led to an increased use of computers and information technology in all aspects of spatial data handling. The software technology used in this domain is Geographic Information Systems (GIS). GIS is being used by various disciplines as tools for spatial data handling in a geographic environment. This article deals with history of GIS and fundamentals of GIS such as elements of GIS; data models; data structures & data base; and elementary spatial analysis.

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