Typesetting
In 1985, desktop publishing became available, starting with the Apple Macintosh, Aldus PageMaker (and later QuarkXPress) and PostScript. Improvements in software and hardware, and rapidly-lowering costs, popularized desktop publishing and enabled very fine control of typeset results at much lower cost than the minicomputer-based systems. At the same time, word processing systems such as Wang and WordPerfect revolutionized office documents. They did not, however, have the typographic ability or flexibility required for complex book layout, graphics, mathematics, or advanced hyphenation and justification rules (H and J).