Abstract
In traditional CRT displays of text, a centered-spacing algorithm is used with constant center-to-center distance between adjacent characters. This spacing algorithm is also used for most typewriters. In proportional-spacing, the edge-to-edge (rather than center-to-center) distance between adjacent characters is controlled. This can result in significantly greater display densities of textual information than with traditional centered-spacing. Human factors problems and issues associated with these alternative character-spacing algorithms for CRT-displayed text will be presented.
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