Rainbow machine is very quirky demanding
weird hardware and quirky disks in both format and hardsectored. :(
Bear in mind that from the perspective of us CP/M folks, demanding absolutely
rigid hardware compatibility is quirky...
IBM produced
excellent PS/2 '87 era series that can be ripped apart with bare
hands except for motherboard and PSU screws.
FWIW, my absolute favorite box of all time is the VAXstation 4000/60 or /96;
you can get everything out of the box quickly with no tools. In contrast,
it's only been in the last few years that I've gotten coordinated enough to
keep from mutilating my knuckles every time I go into a VAXstation 2000...
Roger Ivie
ivie(a)cc.usu.edu