Rare 128k Macintosh prototype with 5.25″ floppy drive surfaces

Fans of Apple or vintage computers might be interested to know that a very rare 128k Macintosh prototype has surfaced onto the internet, albeit not for sale but in the form of photos. What you are looking at above is supposedly a rare Macintosh prototype that utilized a 5.25" "Twiggy" floppy disk mechanism that Apple used on the first generation Lisa workstation. The motherboard of the prototype workstation also featured a riser card with four custom EPROMs which were early testing systems with the Mac firmware yet to be finalized. Interestingly on the logic boards there appeared to be silkscreened icons of a certain "Mr.

Ubergizmo, Rare 128k Macintosh prototype with 5.25″ floppy drive surfaces