Ten Years of Computer Simulation

The past and present of computer simulation are examined, and on that basis some predictions for the future are made. Deploring the analog vs digital concept fostered by some, the author stresses the complementary aspects of the two methods. Then, drawing heavily on the experience of others as well as his own, the more important improvements in simulation techniques and equipment of the past ten years are discussed. The two approaches to analog-digital simulation¿the hybrid-computer in which both techniques are combined in one machine, and the combined-simulation in which relatively pure analog and digital computers are connected to operate together¿are both viewed as attempts to capitalize on the unique advantages inherent in each method, and as presenting common problems. The requirement for better education, not only of the potential user¿the scientist, the engineer, and the researcher in other fields such as biology and medicine¿but of the undergraduate and the public, is found to be the greatest need. Improved equipment having greater reliability¿for somewhat less money¿is also needed. But it is predicted that that will come. It is the need for education which demands the attention of all who are interested in the furture of computer simulation.