> From: Pontus Pihlgren > I gather it's for a KA10.
Yes, the MIT-DM machine.(MIT-AI had an MIT-built - I think - paging box that was mostly program-compatible with the one on MIT-DM, but had an extra bit of physical page number, so supported 4 'mobies' of physical memory instead of 2; I don't know who made MIT-ML's paging box.) > I the maker "system concepts"? Yes; more here about them: https://en.wikipedia.org/wiki/Systems_Concepts (This was one of the first things they built.) Noel