CRT(阴极射线管)显示器是微型计算机中十分重要的外围设备.它能在CRT屏面上直观地显示计算机数据,而且还可以利用键盘等输入工具把数据、命令输入进计算机,通过系统的软件和硬件功能,随时增删、修改和变换显示的内容.因此,CRT显示器是实现人机对话的重要工具.对于不同的微型计算机系统,CRT显示器的组成方式也稍有不同,但工作原理基本上是一样的.例如,在大多数单板机系统中,CRT的屏面编辑功能由单板机的CPU(中央处理器)完成.而在较大一些的系统 CRT (Cathode Ray Tube) display is a very important peripheral in microcomputers, it can display computer data intuitively on the CRT screen, and can input data and commands into the computer by inputting tools such as keyboard, And hardware functions, at any time add, modify and transform the display of content.Therefore, CRT monitors is an important tool to achieve human-machine dialogue.For different microcomputer systems, CRT monitors composition is also slightly different, but the working principle is basically For example, in most single-board systems, the CRT screen editing functions are performed by the single-board CPU (central processing unit), whereas in larger systems