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Digital Monitor. Monitor which receives discrete
binary signals. Digital monitors do not have as
wide a range of color choices as analog types;
digital EGA monitors can display just 64 colors.
DRAM. Dynamic RAM. RAM is random access
memory.
ECD. Enhanced Color Display. An EGA
specification. TTL monitor capable of displaying
video signals with horizontal scan frequencies of
15.750KHz (CGA) or 21.850KHz (EGA) only.
EGA. Enhanced Graphics Adapter. High resolution
IBM graphics standard capable of displaying 640 x
350 pixels in 16 colors out of a palette of 64
colors.
EGA Monitor. Any monitor capable of displaying
both EGA and CGA standard modes. This includes
ECD and multiple frequency monitors.
Extended EGA. Offered by proprietary chip sets on
non-IBM adapter cards with 640 x 480 resolution
or better.
Feature Connector. Used by graphics adapters to
give compatibility with VGA text and graphics
codes for use with multi-media applications.
GUI. Graphical User Interface.
Flicker. The wavering or unsteady image on some
monitors. A major cause can be a low refresh rate.
Hardware Graphics Cursor. Provides a faster
method of displaying/moving a cursor (GUI arrow)
on the screen. The video adapter’s main chipset
controls this function which resides in system
memory, as opposed to slower handling by the
application software.
Glossary
