AFAIK, no M7606 modules shipped without an FPU. I don't have them handy but IIRC there were four part numbers, two with FPU and two without (the other "variable" was something like the manufacturer for the on-board memory or some such). None of the non-FPU parts shipped (I'm not sure whether any were built for testing). Other bits of kit almost certainly shipped without an FPU: for example, I've just had a look at some preliminary DEMSA schematics and I can see no FPU. I would expect that other "dedicated" kit (LPS printers, various X-terminals etc) also dispensed with the FPU if it was not necessary. Antonio arcarlini(a)iee.org