GIS

A geographic information system (GIS) integrates hardware, software, and data for capturing, managing, analyzing, and displaying all forms of geographically referenced information (http://www.gis.com/content/what-gis)

Popular software in GIS ArcGIS (propriety software) http://esriindia.com/ESRIINDIA.htm

ILWIS (free software ) http://52north.org/download/Ilwis/

For Some of my GIS activities please Visit http://ordinarymanofindia.blogspot.com/