At the 1989 Developers’ Conference, Apple revealed an entirely new typographic universe to 1500 eager supporters. The combination of a new font technology, a greatly enhanced line layout manager, and an entirely new printer driver architecture promises to make the Macintosh the premier machine for print-oriented graphics, and open new opportunities for Macintosh developers. The three features are closely related and need to be discussed together to understand the full impact.
Alviani, Frank. MacTech (1990). Design>Typography>Online>Macintosh