Simulation - as it has been, is, and should be

tors can simplify programming, provide special features for the operator, and reduce costs. It is now practical to combine many analog operations into groups of input/output functions. When simulations are divided into categories (mechanical, chemical, physiological, etc.), there are usually recurring loops that can be treated as independent subprograms. These subprograms may then be programmed as physical or mathematical functions rather than as analog computing components. Many traditional programming and operating difficulties are thus eliminated.