阴极射线管(CRT)显示是近几年迅速发展起来的一种计算机外围设备。由于它在人机通讯方面所起的作用显著,因此越来越受到各方面的重视。使用CRT显示设备以后,不但可以方便地从萤光屏上读出由计算机输出的各种参数、曲线或图形,而且利用光笔等输入器件,还可在萤光屏上对图形、曲线、数据随意地修改,这给企业管理、工业控制与设计带来了很大的方便。 Cathode Ray Tube (CRT) display is a rapid development of computer peripherals in recent years. Because of its significant role in man-machine communication, it is getting more and more attention from all aspects. The use of CRT display device, not only can be easily read out from the fluorescent screen by the computer output of various parameters, curves or graphics, and the use of light pen and other input devices, but also on the screen on the graphics, curves, data free To modify, which gives business management, industrial control and design has brought great convenience.