This HyperCard® stack has been compiled and produced by Apple Computer, Inc. to provide a source of information on engineering/scientific products currently available for the Macintosh® family of computers. There are nine major topics corresponding to categories of applications. Under each major topic, there are categories which narrow the search to a specific discipline. In addition to browsing by topics and categories, there are two indexed lists. One index is organized alphabetically by product name, and the other by company name with their products listed alphabetically.