[pencilguin]

The article is almost completely right, aside from missing that VAX was little-endian.

But if 68k was really a 16-bit design, then Z-80 was a really 4-bit chip, because that was the size of its ALU. What matters, really, is the register size, and how much work you can do in one instruction. Federico Faggin ("fajjeen", btw) recognized that the Z-80 did not need its 8-bit result in the next click cycle anyway, so took two 4-bit cycles, and nobody was the wiser.