Research and practice of Human-Computer Interaction in CAI of computer course

Human-Computer Interaction has always been an important part in software´s design and development, especially for CAI, how to make sure that learners can master the knowledge faster and better is what the designers of the software have to think about. This paper uses CAI for Course of Algorithm as an example, and discusses the ways and methods of the application of Human-Computer Interaction in CAI for the courses of Computer Science with abstract nature and practicality. From the practical application, we experienced the superiorities of applying appropriate Human-Computer Interaction technologies in CAI.