Editing Digital Research (section)

===Graphics Environment Manager (1985)===

[[File:IBM PC GEM.jpg|240px|thumb|right|Graphics Environment Manager (GEM) Graphic User Interface (GUI) in 1985]]

In 1985 Digital Research also produced a microcomputer version of the [[Graphical Kernel System|GKS]] graphics standard (related to [[NAPLPS]]) called [[Graphics System Extension|GSX]], and later used this as the basis of their [[Graphics Environment Manager|GEM]] [[graphical user interface|GUI]]. Less known are their application programs, limited largely to the GSX-based DR DRAW and a small suite of GUI programs for GEM. After the development of GEM, Microsoft introduced [[Windows 1.0]].

Digital Research (and later its successor [[Caldera (company)|Caldera]]) accused Microsoft of announcing [[vaporware]] versions of MS-DOS to suppress sales of DR&nbsp;DOS.{{Citation needed|date=December 2014}}