数字计算机

This course includes (1) Introduction to computer hardware,(2) Number system,(3) Boolean algebra,(4) Computer Architecture and program execution,(5) Microprocessor and assembly language.

课程内容包含：(1)计算机硬体介绍，(2)数字系统，(3)布林代数，组合逻辑，(4)计算机基本结构与程式之执行，(5)微处理机及组合语言。

Figure 2-7 the keyboard letter keys --letters numeric keys --numbers punctuation keys --comma, period, semicolon special keys control keys arrow keys Caps Lock key --function keys A computer keyboard contains keys that allow you to type letters of the alphabet, numbers, spaces, punctuation marks, and other symbols; A computer keyboard also contains special keys that allow you to perform specific functions on the computer.

计算机键盘包括字母键，数字键，空格键，标点符号键和其它符号键。计算机键盘还包括在计算机上执行特殊功能的特殊键。

With the development of computer technology, computer digital image processing is getting more and more applications in human production and life.

随着计算机技术的发展，计算机数字图像处理在生产和生活中得到越来越多的应用。

With the development of computer and digital imaging technique,the applying field of computer vision rapidly broaden.

中文摘要：随着计算机技术和数字成像技术的发展，计算机视觉技术的应用领域迅速拓宽。

With the computer's development and popularization, digitizer is replacing simulation device gradually. The computer measure and control technology plays a more and more important role in the process of production and scientific research.

随着计算机技术的发展与普及，数字设备正越来越多地取代模拟设备，在生产过程控制和科学研究等广泛的领域中，计算机测控技术正发挥着越来越重要的作用。

John William Mauchly was an American physicist who, along with his student J. Presper Eckert designed ENIAC, the first commercial computer made in the United States.

世界上第一台通用数字电子计算机ENIAC的问世，宣告了人类从此进入电子计算机时代。

Perhaps the most influential of the early computerlike devices was the Electronic Numerical Integrator and Computer, or ENIAC.

也许早期最具影响力的类似计算机的装置应该是电子数字积分计算机，或简称ENIAC。

The first functioning electronic computer was the ENIAC, which was booted up in 1945 to solve ballistic calculations for the U.S.

第一部功能电子计算机是电子数字积分计算机。1945年该机为解决美军弹道计算问题而启动。

Vidicon collect simulate image in period of time and send to computer or DSP chip through video collection card digitlization,use computer to gain eyewinker and process digital image processing:using image area segment and boder measure to calculate area and perimeter;using image smoothness to wipp offthe infection of yawp;using dynamic background and image suited technology to overcome the infection of ray;calculation the parameter of eyewinker(area, perimeter,round measurement, proportion characer and invariant monent),using least norm to design the linearity classify parts,using image matching technologyto classify eyewinker,and to judge whether the eyewinker is harmful to diff background,if the eyewinker satisfy the character require of harmful object ,system will auto-stsrt alarm device. If there ia not have found any eyewinker, Vidicon will collect new simulate image and make processing.

本设计是将摄像机或高频头采集到的模拟图像经过视频采集卡数字化后送入计算机或DSP芯片，利用计算机对采集到的一定时间段内的图像进行异物获取，并对异物图像进行数字图像处理：利用图像区域分割和边缘检测以便进行面积和周长的计算，利用图像平滑去除噪声的影响，利用动态背景运动检测法和图像配准技术克服光线的影响，并通过异物的各类参数（如面积、周长、圆形度、比例特征和不变矩等）的计算，采用最小范数分类法设计了线性分类器，利用图像匹配技术对异物进行分类，从而判断异物是否有害，针对于不同的背景，若异物满足有害物体的特征要求，则认为物体有害，自动启动报警装置，如果没有发现有害异物则新摄入的图像将取代前一时间段的图像再进行图像处理。

Programmable logic controller is the combination product of computer science and conventional relay control technology.It is a special computer which has micro processing core and bases on ditigal control.Also it has advantages of reliability,easy to use and kind of functions, which has a wide usage in electric power,weave,mechanism,manufacture,chemical industry and metallurgy.

可编程控制器是计算机技术与继电器常规控制技术相结合的产物，是以微处理器为核心，以数字控制为基础的特殊计算机，它具有工作可靠、使用灵活和功能齐全等优点，已应用于电力、纺织、机械、制造、化工和冶金等行业。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。