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光笔是计算机显示系统的输入部件之一。在显示系统中,光笔将人的干予、显示器和计算机三者有机地结合起来,构成所谓的人——机通讯系统。这时利用光笔,就象使用一支普通笔在纸上画图一样,能按人的予想直接在显示屏上画图或对所显示的图形进行选择或修改。有些作图在纸上进行麻烦(如擦去、旋转、移位、放大图形等),但利用带光笔的计算机显示系统之后便能在屏上块速画出。人们乐意使用一种完善的光笔系
Light pen is one of the input components of a computer display system. In the display system, the light pen organically combines people, monitors, and computers to form a so-called man-machine communication system. In this case, using a light pen, like drawing an image on a piece of paper using an ordinary pen, can be directly drawn on the screen or selected or modified according to one’s expectations. Some drawing on the paper for trouble (such as wipe, rotate, shift, enlarge the graphics, etc.), but the use of a computer with a light pen display system can draw on the screen speed. People are happy to use a perfect light pen