GEM Last modified: Tuesday, July 24, 2007
(1) A graphical user interface developed by Digital Research that is built into personal computers made by Atari, and is also used as an interface for some DOS programs. Like the Macintosh interface and Microsoft Windows, GEM provides a windowed environment for running programs. GEM also refers to a special graphics file format used in GEM-based applications. (2) Short for Globally Executable Multimedia Home Platform (MHP) it defines specifications based on MHP together with DVB. GEM is a framework  not a standalone specification, used by those wanting to define specifications based on MHP. The GEM specification lists those parts of the MHP specification that have been found to be DVB technology or market specific. The OpenCable Project is based on the GEM standard.
DVB Fact Sheet: Multimedia Home Platform (PDF) The complete set of open middleware standards for Interactive TV.

Related Terms

digital television DVB DVB-HTML DVB-Java DVB-MHP graphical user interface Macintosh computer MHP Microsoft Windows standard