Multiprogramming in a medium-sized hybrid environment

Of the many roles that the digital computer plays in a full hybrid environment, few are amenable to multiprogramming. Usually, the speed mismatch between a modern high-speed analog computer and the typical scientific digital computer used in hybrid systems demands that the digital be fully dedicated to the particular task in progress. However, the use of the digital computer for analog computer setup and checkout is a function which is performed several times a day in an active hybrid computation laboratory, and this task does not make any severe demands upon the digital computer. This paper describes a multiprogramming system used to effectively set up and check out an analog computer while still performing routine background processing such as compilation.