DosFox2d ago

After watching the wonderful @mac84tv video on the MIMMS iNSPIRE exhibit, I noticed this early Macintosh ii prototype.

I have to admit I got *very* excited, as this is only the second Macintosh ii prototype I've seen. (YACCintosh and the Big Mac technically don't count, as they're a different architecture)

(Thanks to Mac84 for sending me a few more photos of the exhibit!)

Show threadDosFox2d ago

So this is almost definitely a Macintosh II as it has a socket for a 68020, 68851 MMU, and 68881 FPU.

It also has six 96 pin slots - likely NuBus.

As far as I'm aware, only the Macintosh ii prototypes had NuBus as the expansion. The other prototypes didn't!

Show threadHenning Paul DC4HP
@DosFox Those are 96-pin DIN 41612 type C connectors.
Apr 3 at 8:46pmWeb
Show threadDosFox2d ago
@hennichodernich good spot!
Show threadHenning Paul DC4HP2d ago
@DosFox Wild that they even got it standardized as IEEE 1196.