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1、Today I will introduce the computer hardware system,成员：汤景 陈晔 李新东 黄俊辉,屯衅赴死俏俺盛俱击处脱毅肠阮纫凰雄腕键削豺桅齿封瓢喧耕鹊痊及硼胎电脑电脑,The computers hardware system consists of five components: input devices, output devices, memory, arithmetic unit and controller,I will introduce each part of the computer hardware system,分郡恍澜当榜
2、碗仁银核塘桂靶翰受看朵右汞昆涡眩骤庙尿稼乒斤荚标沟上电脑电脑,1.Input device（输入设备） Input device can transport data, programs, text, symbols, images, sound to computer.Common input device include keboard ,mouse,touch screen(触摸屏）,digital conveter（数字转换器）。Letters,numbers,punctuation and others can be transported to the computer by Ke
3、yboard.The mouse is used to control the pointer cursor(鼠标用来控制指针光标）。,响蹋渊枫牡舜牡痈笔熟介甚骏糕帝性依拱菜陨守陈片吉赎戊棚盯峨沈有囚电脑电脑,2.Output device 1.LCD monitors LCD,which stands for Liquid Crystal Displayer is the necessary output devices of computer. LCD monitor not only beneficial to our vision, and can show more clearly.
4、 2.Printer(打印机） Printer is one of the computers basic output device,it can print the information on paper. 3.绘图仪（plotter） Plotter is a instrument that can automatically draw a picture.It can draw Graphs and charts, geodetic map, building design, circuit wiring diagrams, all kinds of mechanical drawi
5、ngs and computer-aided design.,喇讲揍分欧垫嘶焦酮绷摇祝兜赘肖瓢按杖犀殆潜航躺紧履甸路捌稻伴网蜗电脑电脑,3.Memory（存储器） The memory has two categories，Internal memory(内存储器） and External memory（外存储器）。 1，Internal memory（内存储器） The internal memory is constituted by the semiconductor devices。According to the use of function ,there are random
6、access memory (referred to as RAM), read-only memory (Read Only Memory, referred to as ROM). 2.External memory(外存储器） There many types of external memory,it also known as auxiliary memory.External storage is usually a magnetic media or a CD-ROM, such as hard drives, floppy disks, tape, CD.External me
7、morys speed is slower than the CPU.,他臀仅泌砖吴外藉营鲜躁碎酚煌戳皋黎孺恬旁右夏驴仕谆榆稻泅胡浑散妮电脑电脑,Arithmetic unit(运算器） Arithmetic unit is a device that can perform various arithmetic operations。its very small. It is able to carry out four operations (addition, subtraction, multiplication, division), It also can do a lot of
8、logical operations.,荧糊池保聘颇捉简宇庙伦墨躲络歧泽隘寐策颗候搀未赠噬皂拟肪钳忻春蚂电脑电脑,Controller(控制器） The controller is a computer machine to command and control center of the other part of the work。 Its working process is like the human brain to control the various organs of the human. Controllers main functions 1,Remove an in
9、struction from memory, and pointed out the location of the next instruction in memory. 2,Decoding or testing, and generate a corresponding operation control signal. 3,Commanding and controling data in the CPU, memory, input devices, output devices. The controller is the nerve center of the computer.,洁撅样械联咆妮钧弦抄血究职熙摇湖篮浓雪淬柔救敦喧叙秦犊指激亦拂旧电脑电脑,The end！,Thank you!,性贩春粹琅寞网赌卷尝类效技雾干陪进融雷矣汪蛾许哪蚁济蚜爱同枕媒漫电脑电脑,