Present SLAC Accelerator Computer Control System Features

Abstract
The current functional organization and state of software development of the computer control system of the Stanford Linear Accelerator is described. Included is a discussion of the distribution of functions throughout the system, the local controller features, and currently implemented features of the touch panel portion of the system. The functional use of our "triplex" of PDP11-34 computers sharing common memory is described. Also included is a description of the use of "pseudopanel" tables as data tables for closed loop control functions.