HyperCard includes a built-in programming language called HyperTalk for manipulating data and the user interface. HyperCard combines a flat-file database with a graphical, flexible, user-modifiable interface. It is among the first successful hypermedia systems predating the World Wide Web. HyperCard is a software application and development kit for Apple Macintosh and Apple IIGS computers. Macintosh: System 6, System 7, Mac OS 8, Mac OS 9
