<unit, graphics> (TWentIeth of a Point) 1/20 of a Postscript
point, or 1/1440th of an inch. There are thus 1440 twips to
an inch or about 567 twips to a centimeter.
Twips are used in Microsoft formats and products, notably
Rich Text Format, Visual BASIC, Visual C++, and printer
drivers; and in IBM AFP products.
Twips were devised in the olden days to describe the sizes of
characters produced by dot matrix printers that were
constrained to multiples of either 12 or 10 dots per inch.
[Is it definitely relative to a _Postscript_ point, as opposed
to one of the other definitions of point?]
