Forest City, Iowa is a town that has 700 computers for 2,400 people who use them for everything from kindergarten lessons to cutting fabrics and tracking pork belly futures. These and other educational and home uses of the computers are discussed. (JN)

Scientists are designing computer models of biological systems, and of compounds with complex molecules, that can be used to get answers once obtainable only by sacrificing laboratory animals. Although most programs are still under development, some are in use by industrial/pharmaceutical companies. The programs and experiments they simulate are…