What is GIS?
GIS is an acronym for geographic information system. Loosely defined, GIS could be explained as “computerized mapping.”
In a more technical sense, GIS is “an integrated collection of software and data used to view and manage information about geographic places, analyze geographic relationships, and model geographic processes. A GIS provides a framework for gathering and organizing geographic data and related information so that it can be displayed and analyzed.” Source - Environmental Systems Research Institute (ESRI)