计算机英语 unit1.pptVIP

 New Words New Words Phrases Abbreviations ENIAC 电子数字积分计算机 Electronic Numerical Integrator And Computer IC 集成电路 Integrated circuit LSI 大规模集成电路 Large-scale integrated circuit VLSI 超大规模集成电路 Very Large-scale integrated circuit CPU 中央处理器 Central Processing Unit ROM 只读存储器 Read-only Memory Text and Notes Main Contents Introduction What’s a computer? An electronic device, which can receive instructions and carry out programs What’s the usage of computer? Data storage and handling Which domain is computer used in? Bank, Factory, Hospital, Military, Supermarket, and so on History 4 periods Analytical Engine Early Computers Electronic Computers Integrated Circuits 1642年，法国数学家和物理学家帕斯卡发明了第一台机械式加法器 1674年，德国数学家和哲学家莱布尼慈设计完成了乘法自动计算机 1822年，英国数学家巴贝奇设计了一台差分机 Computer Categories How many kinds of computers according to the cost and performance? Microcomputer, workstation, minicomputer, mainframe, supercomputer; Laptop, desktop, palmtop Hardware What’s computer composed of? CPU (central processing unit); input devices (Keyboard, Mouse, Scanner); memory storage devices (Disk Drive, Floppy Disk); output devices (Printer, Speaker); bus (a communications network) Programming What’s a program? It’s a sequence of instructions Examples about computers with embedded programs? Microwave oven, watch, car engine ,cell phone, MP3 Future Developments Microminiaturization Artificial intelligence Neural network Optical computer Homework Do exercises of section A； Read section B and section C independently * * Computer English Unit 1 Computer and Computer Science Section A Computer Overview overview n. 概述 numerical a. 数字的 automation n. 自动化 precursor n. 先驱 digit n. 数字 perforated a. 穿孔的 compile