Mac 512k

I recall the same kind of trick for a color-computer 1. :) In that case, it was supposed to give you extra capacity above the supposed 64k maximum. No idea how it was addressed. It could be that my memory is cloudy and it was an upgrade _to_ the 64k maximum. I seem to remember, for some reason, the upgrade got the thing up to 96k or some odd number like that. Of course, this is a vague recollection from an article in a "Hot CoCo" magazine a while back, so may not be completely accurate. Or it may be way off. The only part that I recall with clarity is that one was required to solder new chips on top of the old. Chris Christopher Smith, Perl Developer Amdocs - Champaign, IL /usr/bin/perl -e ' print((~"\x95\xc4\xe3"^"Just Another Perl Hacker.")."\x08!\n"); '