A set of dot patterns for each letter and digit in a particular typeface (Times Roman, Helvetica, etc.) for a specified type size (10 points, 12 points, etc.). Bitmapped typefaces are either purchased in groups of pre-generated point sizes, or, for a wide supply of fonts, font generators allow the user to create a variety of point sizes. Bitmapped fonts take up disk space for each point size. Contrast with scalable font. See font and font generator.