Chapter 1计算机英语

影响
计算机专业英语 》》
计计算算机专机业专英语业》英》语 》》
▪ Several computer generations occur in the history. The first digital computer ENIAC was invented in 1946. It marked the beginning of the first computer phase－mainframe phase. In fact, mainframes have had four generations of products, which are characterized by vacuum tubes, transistors, small and medium scale IC and super LSI circuits respectively.
计算机专业英语 》》
▪ occur
vi.发生，出现
▪ mark
n.标志；v.做标记
▪ phase/stage 阶段
▪ vacuum tubes 真空管
▪ transistor
晶体管
▪ small and medium scale IC 中小规模集成电路
▪ super LSI circuits 超大规模集成电路
Computer
算盘
计计算算机专机业专英语业》英》语 》》
▪ A computer is a fast and efficient digital information processing system. It can accept, store, and process data and produce output results. It’s one of the greatest inventions in science and technology in the 20th century. It has had a long and deep social impact on human life and production.

Computer 1946: when the first electronic computing devices were developed
Computer
1940: defined as a person who performs calculations
The types of computers
1, Supercomputers
Features: Most powerful, highcapacity,
Usage: NASA, defense and weaponry, weather forecasting, scientific research.
The types of computers
Type: desktop, notebook, tablet
An information system contains five parts:
people
end users, like you and me rules or guidelines for people to follow when using----VB, C language
Unit 1 Computer
Task 1 Text
What is a computer?
Computers are electronic devices that can follow instructions to accept input, process that input, and produce information.
叁
4, microcomputer
Features: 1971, a single chip, designed to meet the needs of individual

• JAVA是一种面向对象的程序设计语言，具有高性能、可移植性、简 单、面向对象、解释性语言、结构中立、类装载、安全、多线性、分 布式、动态等特性。它的执行过程是首先将源代码编译成字节码文件， 然后在不同各种不同平台的虚拟机上执行字节码，从而实现“一次编 译，到处执行”的跨平台特性。
• 随着移动设备的普及，移动设备开发平台也日渐火热，目前常见的移 动开发平台有塞班、iPhone以及当下正在逐步兴起的Android。学习 和采用Android的理由主要有： – Android系统是开源的，谷歌在推出Android的时候就将其定位于 开源技术，所以Android也继承了开源技术的基本特征，即免费、 安全、易于开发，并且系统应用的移植很容易实现。 – 国外很多移动巨头都开始进行Android的开发，国内厂商可以借鉴 其开发经验，更好地促进移动软件技术的开发与应用。
[1] DNA: 此处不是指脱氧核糖核酸, 这是Distributed N Architexture的缩写, 它是微软.Net架构的前身
[z1]SOAP指简单对象访问协议Simple Object Access Protocol，是一种轻量 的、简单的、基于XML的协议，允许Java对象和COM对象在分布式、分 散的、基于Web的环境中彼此通话。更一般地，SOAP允许任何类型的对 象（或代码）在任何平台上，以任何一种语言相互通信。
created by Google and the Open Handset
Alliance[z1] . In a few years, it’s expected to
be found in millions of cell phones and other
mobile devices, making Android a major

• Gates did not have a definite study plan while a student at Harvard and spent a lot of time using the school's computers.
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• Gates stepped down as chief executive officer of Microsoft in January 2000.
• He remained as chairman and created the position of chief software architect.
• In June 2006, Gates announced that he would be transitioning from full-time work at Microsoft to part-time work, and full-time work at the Bill & Melinda Gates Foundation.
four basic units of simplified computer: the input unit, central processing unit (CPU), memory unit, and output unit.
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1.2 Computer Development
1.2.1 Text A • The hardware of a digital computer system