This paper provides an evaluation of computer configurations that might be applied to a single large simulator or a complex of simulators. The analysis indicates that minicomputers or the recently introduced super minicomputers offer the best approach to implementation of most simulators. The very large computer designed for high throughput in a multiprogramming environment is not cost effective for the simulator application, and the yet unsolved problems in partitioning the simulator computations for use in a distributed microprocessor network outweigh the saving in hardware cost. More important than the results of this study is the method of analysis developed for evaluation of computer configurations in simulator systems. The procedure presented can be used to address other configurations and different values of such variables as reliability, mean time to repair and cost. The method is recommended for use in evaluating computer implementation for specific simulator procurements.