Computer-aided instruction in digital-circuit design using personal computers

The widespread availability of personal computer systems in the student´s academic and home environments lead the authors to design a project that would evaluate the feasibility of computer-aided instruction (CAI) on these systems. They selected the topic of Boolean expression minimization with Karnaugh maps for the project because it is a topic that can easily be broken into lessons and because the concept of minterm coverings seemed to be a natural use of colour graphics. They describe the system configuration they chose and the techniques that were used to stimulate the student´s interest, convey the subject matter, reinforce correct understanding, and address incorrect understanding. Examples illustrate the multiple paths possible through the courseware. Finally, an evaluation is made with a view toward future directions for CAI on personal computers.