Typically the DC family of cameras captures images in the 1 MB range and lower, and cost hundreds of dollars as opposed to thousands of dollars. The class of cameras with megapixel resolution. The DCS family of cameras captures images in the 4.5 - 18 MB range and cost thousands of dollars. Digital vs. analog information Digital data are represented by discrete values. Analog information is represented by ranges of values, and is therefore less precise.
Computers use digital data.
Dedicated Lines Special cables used only for videoconferencing, usually within an office or school. Default setting A preset parameter in computer programs which will be used unless changed by the operator. Densitometer A tool used to measure the amount of light that is reflected or transmitted by an object. Desktop Publishing Describes the digital process of combining text with visuals and graphics to create brochures, newsletters, logos, electronic slides and other published work with a computer. Diffusion dithering A method of dithering that randomly distributes pixels instead of using a set pattern.