flipper:
True, but higher monitor resolutions are still well within the same order of magnitude, while printers (of the same "age") are in another.
Here there are a couple of 200 PPI, a few 150, most are around 100. And also a 269 PPI, but that's a "subnotebook" that did'nt have much success.
Now that you mention it, I remember that the monographic issue of Scientific American dedicated to computers some 30 years ago had an article showing how color depth was, using anti-aliasing techniques, equivalent to higher resolution, as far as the human perception is concerned.
Thinking better about it, the different resolution has also to deal with the dot clock, that, for a QXGA (2048 pixel) screen, is already in the 170 MHz range, a respectable speed for D/As and A/Ds. On a laser printer, even at a resolution of 4800 DPI, it should be lower than that.
PS. On the 24th I was at dinner with the professor, but did'nt have a chance to submit your piece about tax history and get his. He will be my guest for dinner in January, and, if he wants to eat... ;-)