8-Concept and Basics of an Information Technology - The Geographic Information System.

Abstract

The information technology has developed manifolds, especially in last one decade. The base of any information technology depends largely upon the information inputs in form of a database and its suitable use. Large data sets can be handled on computers under the Data Base Management System using various softwares, however, these softwares can only tackle non-spatial data. To extract selective information relevant to the planning task with reference to the geo-referenced location, analyses of different thematic maps (spatial information) and integration of large amount of attribute data (non-spatial information) is required. This is possible through a comparatively new and sophisticated information technology, known as the Geographic Information System. This paper describes the underlying concepts and basics of Geographic Information System.