Information: Graphics Glossary

8-bit 2 to the 8th power = 256 colors

24-bit 2 to the 24th = 16.7 million colors

32-bit 16.7 million colors + 8 bits of transparency (alpha)

CMYK (Cyan - Magenta - Yellow - blacK)
Primary colors when mixing ink

Pixel (picture cell)
A matrix of colored squares that compose a Bitmap or Raster image.

RGB (Red - Green - Blue)
Primary colors when mixing light

WYSIWYG (Pronounced "wiz-ee-wig")
What You See Is What You Get. It's a desktop publishing term meaning what's on your screen is (approximately) what will come out of the printer. True WYSIWYG is very hard to achieve because printers use the subtractive CYMK color of ink, but your monitor used the additive RBG color of light. The two have different gamuts, or displayable colors.

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