On a computer monitor, a color display in which each pixel (or smallest point of color) is described by 1 bit of information. (One bit is either a 1 or a 0; 1-Bit color can be thought of as one of these two numbers taken to the first power; thus 21 = 2 possible colors.) The color of a pixel on a computer display is commonly expressed as some amount of red, green, and blue. Greater numbers of combinations of these amounts require more processing power on the part of the computer. At 1 bit per pixel, a total of only two colors (typically black and white, or any other two colors) can be described and displayed. See also 4-Bit Color, 8-Bit Color, 16-Bit Color, 24-Bit Color, and 32-Bit Color. Scanning done at a color depth of 1-Bit is known as bilevel scanning.
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