Integrate and link text, graphics, sound, speech and QuickTime movies into HyperCard stacks to create dynamic, interactive titles.
HyperCard is Apple's custom software development tool for users of every skill level with navigation, hypertext, media integration and scripting features that have greatly influenced the evolution of the World Wide Web. HyperCard organizes information into associated "stacks" of cards that can be easily navigated and searched. Users are able to integrate and link text, graphics, sound, speech and QuickTime movies into HyperCard stacks to create dynamic, interactive titles.
If pressed, no native X support, old as the hills, no built-in color support, but that's it.
Summary
It blows the competition away with how good it is considering its obsolescence. I created a quite powerful diary program in both version 1.2.5 and then expanded on it in version 2.4.1, and both times it was easy as pie. I am shocked this program died such a miserable death. It was far too good for the fate it got meted out to it.
I will continue using it on a retinue of Classic Mac OS Macs because it makes programming manageable.