It would be tough (but valuable) to provide a truly
comprehensive
list.
kingdom = {analogue, digital, quantum}
Phylum = {silicon, GaAs, Germanium (?), hollow-state, mechanical}
Class = {Mainframe, Mini, Workstation, Micro}
Order = {Rackmount, deskside, desktop, luggable, laptop, notebook,
palmtop}
You are leaving out whole categories of computers. Where do VCR and
microwave oven controllers fit in? How do you fit in user programmable
and non-user programmable? What about digital storage scopes, logic
analyzers? What about lawn sprinkler timers, aren't they
"programmable"?
Jack Peacock