@arstechnica I owned three generations of computers with the Z80 microprocessor. My first was a TRS80 Model I, with 4k and then 16k. Then a Big Board CP/M machine with 64k. Finally an Epson QX-10 with 256k.
In retrospect it's pretty strange that a microprocessor generation lasted that long.
Of course everything was very awkward in the transition from 8-bit systems to 32-bit ones.