Thanks to mack and John for clearing up a couple of things for me.

I used to be in the typesetting business before going bankrupt in the late 80s, when the last of our large clients went the "do-it-yourself" route. At the time, we were holding the bag for a *large* investment in previous-generation technology (minicomputer-based front end system, digital phototypesetter, copy camera, photochemical processors, etc.) and I was in no position to buy a micro (Mac at the time, Mac-or-PC later) to continue doing the same work with new tools.

I've since worked (briefly) as a Mac/QuarkXPress operator, and (for the last decade) as a tech writer, sometimes using MSWord on the PC to approximate "real" typography. But I've never gotten as solid a handle on the inner workings of microcomputer graphics and page-makeup as had upon several older generations of graphic production technology.