Permeability from Logs utilizes a relatively new type of interactive computer instruction that falls in the category of hypermedia. This tutorial includes hypertext, voice, music, graphics, animation, and interactive computation. The idea is to allow the user to select only that detailed information he or she needs — plus incorporate an element of entertainment while learning. The program can be run on the Macintosh using Apple Computer's HyperCard, or on IBM-compatibles using Spinnaker Software's PLUS operating under Microsoft's Windows 3.0. For the Macintosh version, HyperCard's object-oriented programming language HyperTalk was employed. The PLUS programming language PPL was used for the DOS version.

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