There are probably three or four major types of Macs:
enclosed models
with mono screens (128K, 512K, Plus, SE, SE/30...), low-end slab-style
desktops (MacLC-II, MacLC-III...), higher-end desktop and small server
models with 68020 or better, and Nubus slots (MacII, IIci, IIsi, IIvx,
IIfx, Quadra 700, Quadra 800, Quadra 950...), early PowerPC boxes with
NuBus slots and frequently AV hardware (PowerMac 6100, 6200, 7100,
8100...) and "modern" PowerPC designs (iMac, G3, G4...)
There are dozens of models that I have not mentioned, but they more-or-
less resemble one of the ones that I have mentioned.
The "beige PCI Power Macs" occupy the middle ground between the modern
New World Power Mac and the last of the NuBus Power Macs. These include
systems such as the 4400, 63-6400, 72-73-75-7600, 82-85-8600 and 95-9600
models. The original beige G3 is sort of an oddball, neither fish nor
fowl based on its internals. Alas, all of these are not yet on-topic, sigh.
:-P
The NetBSD/macppc models page has some interesting information on the
differences between the major Power Macs.
http://www.netbsd.org/Ports/macppc/models.html
--
----------------------------- personal page:
http://www.armory.com/~spectre/ --
Cameron Kaiser, Floodgap Systems Ltd * So. Calif., USA * ckaiser(a)floodgap.com
-- The first duty of a revolutionary is to get away with it. -- Abbie Hoffman -