Introduction: What is a Geographic Information System.

How a GIS works: A GIS works by providing a way to capture or input data, store, retrieve and manage the data, manipulate and analyze the data, and finally a way of displaying that data as a map or as a document or both. Let's take a closer look as each of these aspects of GIS.

Data input or capture

Data storage, retrieval, and management

Data manipulation and analysis

Data output


Glossary: Terms and definitions.

Web Sites: For more information visit one of these web sites.

Note: We are currently updating this section daily. If data failures and information inconsistancies appear in your copy of the Digital Atlas I-CD please visit our website to view updated information. Please contact us for any questions relating to this material. Thank you.-DAI Staff.