Descrip.

RESUMEN

For a of years newspaper and other publications have made use of computers to assist in variety of editorial and composing tasks. In general, the newspaper applications involve typesetting machines run from copy that the computer had composed to column width. A major portion of the computer’s work in this regard was to hyphenate the end of a line and add spaces between words to produce so called “justified” right hand margins. Machine composing has also been applied with considerable success, though with much more labor, to the composition of technical publications involving complex mathematical notation (see for example a current issue of the Journal of Research of the National Bureau of Standards) and to material requiring a variety of type faces. In these applications a punched-paper tape generated either from a keyboard or by a computer or both, drives a photo-composing machine which employs film matrices and photography to produce a positive or negative copy of the formatted page. These are then either rephotographed or exposed to make plates for photolithographic printing.