GIS started on mainframe computers; we could get one map every five to 10 hours, and if we made a mistake, it could take longer. In the early '90s, when people started buying PCs, we migrated to desktop software.

GIS is the only technology that actually integrates many different subjects using geography as its common framework.

Once you digitize data, you can actually analyze patterns and relationships in geographic space - relationships between certain health patterns and air or water pollution, between plants and climate, soils, landscape.

Jack Dangermond Quotes