> I got it with my mini-MINC, essentially a PDT-150. But it came without This has always puzzled me. The PDT-150 is essentally a closed system, no expansion bus. And AFAIK it doens'timclude a ADC. So what makes a mini-MINC a modular _intstrument_ computer. How do you use it to meaurevoltages or whatever? -tony