John schrieb: > I also saw something with Z?? 180 at the end which was, I think, faster > still, or at least 8 HHz or more. The Z180 was used in the famous HP DeskJet 500 printer series. These CPUs were available up to 20 MHz. And the Z8 is the microcontroller (=single chip computer) version of the Z80 microprocessor. These controlled Apple's Profile and Widget hard drives. Patrick