[wrs]

And a later Mac, the IIfx, introduced I/O coprocessors to run the IWM, among other things. All part of the glorious wheel of reincarnation. [0]

[0] https://www.computer-dictionary-online.org/definitions-c/cyc...

[duskwuff]

Crazier yet: the IOPs on the IIfx were 6502-based microcontrollers.