About

ArcGIS consists of products, versions, applications, license levels and components and their question tagging on GIS Stack Exchange has been discussed here.

ArcGIS was first launched in 1999 and excepting server offerings is available on Microsoft Windows only. Prior to 1999 Esri had a number of different product lines (ArcView3, ArcInfo Workstation, MapObjects, ArcSDE) on Unix and Windows that were loosely integrated and sometimes incompatible.

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