>Eric Smith <space...@gmail.com> wrote: >The control stores of the 11/785, 8600, and 8650 were entirely WCS. > >All other VAXen had (relatively) large ROM control store and tiny WCS or >patch store.
You forgot the 11/730 and 725. The KA730 used 2901 bit slicers and the control store was entirely in RAM. After power on it was a paperweight until the 8085 CFE loaded the microcode. Bob
