On Fri, Jun 1, 2018 at 11:08 AM, Robert Armstrong <bob at jfcl.com> wrote:
Eric Smith
<spacewar at 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.
Thanks for the correction! I've never used those models.