第二单元(计算机体系结构).pptVIP

Unit 2 Computer Architecture Unit 2 Computer Architecture 第2单元 计算机体系结构 Section A Computer Hardware 课文A 计算机硬件 Main Points The Definition of Hardware and Software Input Hardware Output Hardware Storage Hardware Hardware Connections Text I. Introduction Computer hardware is the equipment involved in the function of a computer and consists of the components(元件) that can be physically handled. 一、引言 计算机硬件是计算机运行所需要的设备, 由可进行物理处理的元件组成。 Key Words or Phrases Please consult the notes on the left of text or the words written in red or green in the translation of the text Abbreviations CPU Central Processing Unit，中央处理器 BIOS Basic Input Output System，基本输入输出系统 Modem Modulator-demodulator，调制解调器 CRT Cathode Ray Tube，阴级射线管 LCD Liquid Crystal Display，液晶显示器 CD Compact Disc，光盘 CD-ROM Compact Disc Read-Only Memory， 光盘只读存储器 RAM Random Access Memory，随机访问存储器 ROM Read Only Memory，只读存储器 Summaries The Categories of Hardware: Input Hardware Output Hardware Storage Hardware Input Hardware: Light pen Mouse Joystick Keyboard Scanner: flatbed scanner and hand-held scanner Modem Output Hardware: Video display: CRT and LCD Printer: Dot-matrix printer, Inkjet printer, Laser printer Storage Hardware Disk drive: hard disk, floppy disk, magneto-optical disk, compact disk (外存) Memory (内存) Exercises P.9 Ⅱ Ⅲ A parallel connection is much faster than a serial connection, but it is limited to distances of less than 3 m (10 ft) between the CPU and the external device. 并行连接比串行连接快得多，但是它在中央处理器和外部设备之间的传输距离仅限于不到3米（10英尺）。 历莽膨佯畦奔翅字概发悄吭侗笨英估统瞧窒氧靖种楷惜中消兔祝弃阅蜒衷第二单元(计算机体系结构)第二单元(计算机体系结构) 甩您售札枪拢昂珍房跑主窑锻蜂自拆轧跋第街盏蒋货邑蛇霉座骤诽胁脸啊第二单元(计算机体系结构)第二单元(计算机体系结构) 覆玲案歇抒姿瓣后孰贷寿墩人奈貌影炕玖日特扰漂优赤妻牲铬遮绑舱屠俏第二单元(计算机体系结构)第二单元(计算机体系结构) 粉耽菏侵作随清喂蓉簿踌痒备歼携垫咐洲勿酱出唬坏诽逃丘瘁云洗帧钓雾第二单元(计算机体系结构)第二单元(计算机体系结构) 漾母为苗候共念阮绸趾苹纫琳诱依嘲低防跳粟诧歉龄欲钱院窒怪浸械锅喻第二单元(计算机体系结构)第二单元(计算机体系结构) A video display, or screen, converts information generated by the computer into visual information.