Issue No.07 - July (1981 vol.14)
D.R. Ditzel , Bell Laboratories
A radical computer architecture implementing a programming language and a timeshared operating system directly in hardware, Symbol remains a valuable lesson in building complex systems.
D.R. Ditzel, "Reflections on the High-Level Language Symbol Computer System", Computer, vol.14, no. 7, pp. 55-66, July 1981, doi:10.1109/C-M.1981.220530