This publication contains 15 papers in the field of computer simulation. Applications include radar training simulators, flow control in combined sewers, modeling traffic flow through ship canals, selecting computers for smaller businesses, modeling a hospital multiphasic screening unit, simulating human learning and decision-making processes, an industrial-management simulation game, real-time program development, profiling subscribers to Canadian farmers' economic information service, modeling a large-scale computer-communication network, simulating mail flow through a bulk-mail center, demographic projections, consumer-marketing research, automobile dynamics, optimizing of large-scale computer simulations. Individual papers are indexed separately.