人机对话的界面种类有很多，比如显示器、LED、LCD及带触摸屏的LCD等。其中后者是最近几年刚发展起来的一项新技术，它通过计算机技术处理声音、图像、视频、文字、动画等信息，并在这些信息间建立一定的逻辑关系，使之成为能交互地进行信息存取和输出的集成系统。-Man-machine conversation interface has many types, such as display, LED, LCD and the LCD with touch screen and so on. The latter is just in recent years developed a new technology, computer technology to deal with it through sounds, images, video, text, animation and other information, and information to establish a certain logical relationship, making it interactively information access and output the integrated system.