Prior to the relatively easy access to computers which began in the mid-1960's, simulation was a tool only of researchers. Even now, students are frequently excluded from direct laboratory experiences for many reasons. However, computer simulation can open up these experiences, providing a powerful teaching tool for individuals, for small and large groups, for laboratory experiments, for independent enrichment activity, or for classroom use. To be effective, classroom use requires a display of the computer output which can be viewed by the entire class through the use of video converters, cathode ray tube terminals, opaque projectors, or overhead projectors. As computers become easier for teachers to acquire and use, the potential of computer simulation can be realized. A number of computer simulations, along with their various applications, are presented. (KKC)