mini versus micro?

[Saquinn624 at aol.com]

One thing that I have been wondering for a while is what the current 
definition of minicomputer is.
It used to be contrasted with microcomputers, the telling difference being a 
multichip processor implementation versus a single-chip microprocessor [if so, 
are the POWER1 and POWER2 processors 
minicomputer processors?] but now, with microprocessors being used in 
mainframes (and even on-topic mainframes) is this distinction meaningless [i.e. 
should the designation "microcomputer" in its size/power context be replaced with 
something else?] and, if so, does the [whatever micro becomes]/mini/mainframe 
become a question of mass (>700 lbs mainframe, >100 lbs mini, <100 lbs [???]), 
or history (the HP3000 started life as a mini, therefore the spectrum models 
continue as minis . . .), or does the venerable minicomputer cease to exist? 
any other ideas?

Scott Quinn