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    Short for Globally Executable Multimedia (GEM) 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 Projectis based on the GEM standard.

    GEM is also 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 may also refer to a special graphics file format used in GEM-based applications.