计算机行业英语单词（三）
peripheral（计算机）外围设备，周边设备
A peripheral is a device that is connected to a computer but is not built into it.
外设是与计算机相连但不是内置在计算机内的设备。
keyboard 键盘
A keyboard is a panel of keys for entering data into a computer.
键盘是一组用来向计算机输入数据的键。
QWERTY 电脑标准键盘的
If a keyboard is QWERTY, it uses the standard layout for English-language keyboards that starts with the letters Q, W, E, R, T and Y in the upper left corner.
如果键盘是QWERTY，它使用的是标准的英文键盘布局，以左上角的字母Q、W、E、R、T和Y开头。
scroll（电脑屏幕上）从上到下移动（资料等）
To scroll is to move information in a certain direction across a computer screen.
滚动是指在电脑屏幕上按一定方向移动信息。
click 点击，单击
To click something on a computer screen is to place the pointer on it and press the mouse button to select it.
点击电脑屏幕上的某样东西就是把指针放在上面，然后按下鼠标按钮来选择它。
button 按钮
A button is a part of a device that a user presses to perform a function or make a selection.
按钮是设备的一部分，用户按下它来执行功能或进行选择。
LED（light emitting diode）发光二极管
An LED ( light emitting diode ) is a semiconductor that converts electricity into light.
LED(发光二极管)是一种能将电转换为光的半导体。
pointer（鼠标）指针
A pointer is an icon, which is usually controlled by a mouse, that a user can move around on a computer's GUI and use to make selections.
指针是一种图标，通常由鼠标控制，用户可以在计算机的图形用户界面上移动并使用它进行选择。
GUI（graphical user interface）图形用户界面
A GUI ( graphical user interface ) is a visual way of interacting with a computer using menus, icons, and windows.
GUI(图形用户界面)是一种使用菜单、图标和窗口与计算机交互的可视化方式。
electromechanical mouse 机电鼠标
An electromechanical mouse is a computer mouse that uses a rubber ball to track hand movements across a surface.
机电鼠标是一种电脑鼠标，它使用一个橡胶球来跟踪手在表面上的移动。
scroll wheel 鼠标滚轮
A scroll wheel is a device on a computer mouse that allows a user to scroll.
滚轮是计算机鼠标上允许用户通过滚动来查看连续信息的设备。
optical mouse 光学鼠标
An optical mouse is a mouse that uses LEDs to track hand movements across a surface.
光学鼠标是一种使用LED来追踪手在表面移动的鼠标。
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