Software — 3 items

ESRI GIS and Mapping Software: Designer and distributor of GIS software, ArcView and ArcInfo.
Evaluating WINYIELD v. 1.11 and GaPPS v. 4.20: Two Windows-based personal computer software systems are examined and compared when used to model and evaluate forest management options on stand volume ...
The Global Positioning System: GPS is a satellite-based radio navigation system. Users anywhere``on the surface of the earth (or in space around the earth)``with a GPS receiver can determine ...