Hello. I'm new in the list. I write from Spain; my name is Sergio. I have one question to somebody that can answer it: Can it be possible to obtain some sort of info about "Compatible Time-Sharing System (CTSS)" from the M.I.T ? I'm interested to do one IBM 7094 emulator and I should like to made on it the modification that was made in the machine that rans the CTSS. I think that there was some manuals from MIT press ans internals. I suppose that can be possible to obtain it paying. I should like to hear something about this. Same thing is applicable to Multics question. Somebody is doing a Honeywell 635/645 emulator like I could confirm one week ago; in this way, a primitive version of Multics may be sufficient, I think. In both cases we think in Java like the platform to do the work. In my particular case I want to do some other emulators (Univac I, IBM 701, IBM 1401 and IBM 650) because I have some info about them (opcodes, etc). There is only a question about the Univac I that nobody resolvs: Can it be possible to obtain a detailed diagram Well, that all. Thanks. ---------- Sergio Pedraja Administracion de Sistemas Division de Tecnologia Caja Cantabria Spain ----------