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HyperCard Trademark A software system originally developed for the Apple Macintosh family of computers and based on the concept of stacks. It uses the wimp interface to switch between, select from, and structure objects on screen and in the underlying database, and to pass messages between objects. New data can be entered into objects, for example a diary. A new application can be constructed by manipulating objects on screen: there is no need to program in the conventional sense, although a scripting language, HyperTalk, is provided. HyperCard has been used to implement hypertext-style systems and facilitates the authoring of multimedia applications.