I do love Cameron Grey's videos. Often worth reading the YouTube comments too, which not something one would expect to say. In the comments: >That slot is for

I do love Cameron Grey's videos. Often worth reading the YouTube comments too, which not something one would expect to say. In the comments: >That slot is for RAM for the DSP. Very few things ever used it, but the option did exist. I've never seen one with a SIMM in there, though. IIRC it wants 50ns FPM RAM, and can take up to 1024Kb.