Output Units 黑 龙 江 张 瑞 华 1993-01-29 Output from a computer can be presented in many forms ,varying from a printed report to color graphics .In those environments where the computer is used for business applications or business-related personal applications，the two most commonly found output units are the printer and the television-like screen called a cathode ray tube，or CRT. 输出单元 计算机的输出可以有多种形式，可以是打印的报表，也可以是彩色图形。在计算机用于商业应用或与商业有关的个人应用方面，最常见的输出单元是打印机和象电视一样的被称为阴极射线管或CRT的屏幕。