CGA (Color Graphics Adapter)
1983 IBM introduced their first
product to display both color and graphics. Pixel x Line resolution
of 640 x 200. The horizontal scan frequency of 15.75 kHz and ver-
tical frequency of 60 Hz. The output is a 9 pin “D” type connector.
Chrominance Signal
This is the signal that represents color in a
video picture. Chroma is the characteristics of color information
independent of luminance intensity. Hue and saturation are quali-
ties of chroma. Chrominance is abbreviated as “C”.
Color - 24 bit
Refers to the total number of colors possible per
pixel. 24 bit = 16.7 million colors. 8 bits of information per color
(RGB) per pixel. The total possible color combination is greater
than 16.7 million.
Color Mapping
The translation of many video display monitor
colors into fewer LCD projection colors. The more colors an LCD
product has, the better the color mapping.
Color Palette
The total number of colors available for use by a
device.
Polaview 220 DLP Projector
continued
