Apple gave a series of demos of HyperCard/DAL, and soon Oracle Corporation purchased a HyperCard-clone, PLUS from Spinnaker Software, to produce Oracle Card.
The most common demo of the system showed a HyperCard stack querying a series of Baskin-Robbins databases, formerly impossible because each regional area used their own database servers which DAL now combined into one.
Meanwhile Nelson, who had been working on and advocating his Xanadu system for over two decades, along with the commercial success of HyperCard, stirred Autodesk to invest in his revolutionary ideas.
Toolbook uses the metaphor of books and pages, similar to Hypercard's "stack and virtual card" which was released for the Apple environment on the same years.