The Free On-line Dictionary of Computing (30 December 2018):

HyperCard

   A software package by Bill Atkinson for storage and retrieval
   of information on the Macintosh.  It can handle images and
   is designed for browsing.  The powerful customisable
   interactive user interface allows new applications to be
   easily constructed by manipulating objects on the screen,
   often without conventional programming, though the language
   HyperTalk can be used for more complex tasks.

   Usenet newsgroup: news:comp.sys.mac.hypercard.

   ["Apple Macintosh HyperCard User Guide", Apple Computer 1987].

   (1995-02-10)