History of GIS
The 1980s and 1990s
–First commercial GIS Packages.
–Diffusion of Microcomputers.
–Integration with other software (mainly CAD and databases).
–US Census Bureau efforts in the 1980s:
•Digitize spatial, economic and demographic attributes of the United States.
•Creation of the TIGER format (Topologically Integrated Geographic Encoding and Reference ).
–Integrated Information technologies with geography.
–Powerful applications on desktop computers.
–Web/network based data sources.
–Portable and inexpensive field GISs with GPS capabilities.