We had a MV/8000 at college, and it was a really nice machine. We had compilers for Pascal, C, COBOL, and oddly enough, Ada. You could cross-link these languages, so you'd have a front end written in COBOL that would make use of a Pascal back end. And the bindings just worked.

You knew when an Ada compilation job had been started because the other terminals would start getting sluggish...