The Monads-MM ("massive main memory") was never completed, but it played an important role in the project in the late 1980s and early 1990s as the system which would not only have a massive main memory at the time of its original conception in 1986 we were considering a main memory in the order of several gigabytes but would also have 128 bit virtual addresses, allowing objects worldwide to be named uniquely. David Koch did most of the design work.
Rosenberg, J., Koch, D.M. and Keedy, J.L. "A Massive Memory Supercomputer", in Proc. 22nd Hawaii International Conference on System Sciences, pp. 338-345, 1989.
Rosenberg, J., Koch, D.M. and Keedy, J.L. "A Capability-Based Massive Memory Computer", Proc. International Workshop on Persistent Object Systems, Newcastle, Australia, Springer Verlag, 1990, pp. 377-391.
Koch, D.M. and Rosenberg, J. "A Secure RISC-based Architecture Supporting Data Persistence", in Proc. International Workshop on Computer Architectures to Support Security and Persistence of Information, Springer-Verlag, pp. 188-201, 1990.