输入设备
输入设备（Input Devices）(如图所示)
There are several ways to get new information or input into a computer. The two most common ways are the keyboard and the mouse. The keyboard has keys for characters (letters, numbers and punctuation marks) and special commands. Other types of input devices allow you to put images into the computer. A scanner copies a picture or document into the computer. There are several types of scanners and some look very different, but most look like a flat tray with a glass pane and a lid to cover it. You can input photographs into a computer with a digital camera. Photos are taken with the camera away from the computer and stored on a memory chip.
KEY WORDS
1、Keyboard 键盘
2、Mouse 鼠标
4、Camera 摄影仪
桥梁同步顶升5、Trackball 滚动球
6、Digital Camera 数码相机
NEW WORDS
1、keyboard[ 'ki:b延时冲水阀ɔ:d ] n.键盘
2、scanner[ 'skænə ] n.扫描机,扫描盘,光电子扫描装置
3、trackball n.追踪球
液压式浮球阀
大肠杆菌培养输出设备
输出设备（Output Devices）（如图所示）
Output devices display information in a way that you can you can understand. The most common output device is a monitor. It looks a lot a like a TV and houses the computer scr
een. The monitor allows you to 'see' what you and the computer are doing together.
KEY WORDS
2、BIOS Basic Input /Output System 基本输入输出系统 3、EGA Enhanced Graphic Adapter 增强型图形显示器 4、HDD Hard Disk Light-Emitting Diode 硬盘指示灯
5、KB Keyboard 键盘
6、Printer 打字机
7、VGA Video Graphics Adapter 视频图形显示器
8、Video Display Generator 视频显示器 吹管消声器
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