Which reminds me, does anybody else remember those
machines that had
multiple CPUs in them? Or the option of plugging different ones in?
Dimension 68000 was deliberately a multi-processor machine: 68000, 8088,
6502, Z80?
and, of course, we hafta mention Dec Rainbow and Eagle machines with 8088
and Z80
Basis? (Apple ][ copy) had Z80 +6502
at one point, somebody at Apple estimated that 20% of all Apple]['s had
Z80 softcards
There were alternate processor cards for PC, including Z80, 6502, 68000,
80386, . . .