PC-Hypertext: Description The MaxThink programs used in the prototype development were MaxThink (an outline builder or hierarchy manipulator), HOUDINI (a network manipulator), and HyperLink (file manipulation utilities). MaxThink provides the structure to support hierarchical or sequential organizations of an information base. HOUDINI provides the structure to link or reference associated ideas that transcend the hierarchical or sequential information organizations. Although both programs are primarily text based systems that manage ASCII files, recent enhancements permit the integration of graphic files in PC-Paintbrush (.PCX) format into the compiled PC-Hypertext environment. PC-Hypertext includes operational parameters which enhance the performance and versatility of the authoring environment, and facilitate the integration of authored applications with other programming and information processing environments. Additional media management capabilities are under development and are projected to be available in the near future. These include the ability to link and cross-index information stored on CD-ROM and videodisc, an interface with vector graphics (AutoCAD), a software driver for the Targa series image capture boards (AT&T), and extended raster graphics linking and processing capabilities (Neil Larson: oral communication on 12/7/88). PC-Hypertext: Introduction PC-Hypertext: Objectives PC-Hypertext: Assembly PC-Hypertext: Attributes 2. PC-Hypertext: Limitations 1.