ComputerPPT课件
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About Computer PPT
ቤተ መጻሕፍቲ ባይዱ
computer
The computer is widely used in all phases of society. In industry, business, education, medicine, nearly all walks of life, computers have made their appearance, providing great speed and accuracy for our work.
Computers have been used in the home, offices, laboratories and research institutions, functioning as the most efficient and versatile instruments for calculating, sorting, filing, recording and distributing. Computers are indispensable to modern civilization. Without computers, our life and our society will undoubtedly suffer a big regression.
It can also help us learn more about many fields of studies quickly: science, medicine, arts and so on. It is very convenient to people who are busy with their jobs, and has brought about many positive changes in our lives.
计算机发展史完整版PPT课件
02
03
定了基础。
推动了计算机应用的普及， 使计算机从实验室走向社会
各个领域。
04
05
为后来的集成电路计算机和 微处理器的发展奠定了基础
。
04
第三代计算机：集成 电路时代
集成电路计算机原理及特点
01
02
03
04
集成电路原理
将晶体管、电阻、电容等电子 元件及布线集成于一块半导体 基片上，实现复杂逻辑功能。
17世纪机械计算机
02
由齿轮和杠杆组成，可进行基本的数学运算。
代表作品
03
帕斯卡的加法机、莱布尼茨的乘法机等。
电子计算机雏形
电磁学理论的建立
为电子计算机的发展奠定了基础 。
电子元件的发明
真空管、晶体管等电子元件的发明 ，为电子计算机的诞生创造了条件 。
代表作品
阿塔纳索夫的ABC计算机、艾肯的 Mark I计算机等。
DEC PDP-8
采用8位字长的集成电路 计算机，体积小、价格低 ，广泛应用于科研、教育 等领域。
Intel 4004
世界上第一款商用微处理 器，集成了2300个晶体管 ，主频为740kHz。
应用领域及影响
科研领域
集成电路计算机促进了计算机科 学、工程学等领域的发展，推动
了人类科技进步。
工业领域
集成电路计算机在自动化生产、 过程控制等方面发挥了重要作用
每秒5000次加法或400次乘法
占地面积
约170平方米
功耗
约150千瓦
重量
约30吨
应用领域及影响
应用领域：主要用于军事 和科学计算，如弹道计算 、天气预报等。
开创了计算机时代，奠定 了计算机发展的基础。
Introduction to the World of Computers--计算机世界简介课件
用途
7. Explain what a network, the Internet, and the World Wide Web are, as well as how computers, people, and Web pages are identified on the Internet.解释网络、因特网、万维网，同时说明因特网中如何识别
4
4
Computers in Your Life生活中的计算机
• Why learn about computers?为什么学习计算机相关（知识） – Pervasive computing 普适计算 • Also known as ubiquitous computing也称作无处不在的计算 • Computers have become an integral part of our lives计算机变成我们生活的必要组成部分 – Basic computer literacy基本的计算机文化（知识） • Understanding what a computer is and how it works理解计算机是什么，它如何工作
• Microcomputers in the early 1980s上世纪80年代早期的微机 – Inexpensive personal computers不昂贵的个人电脑 – Computer use increased dramatically计算机使用（率）极大地提高
6
Computers in Your Life
• Today现在 – Nearly 90% of US households include a computer, and most use computers at work接近90%的美国家庭拥有计算机，大部分用于工作 – Electronic devices are converging into single units with multiple capabilities电子设备正把各种功能融合到单个设备中 • Check e-mail on living room 在客厅的电视机上收电子邮件 television • View Internet content on mobile 在移动设备上查看互联网内容 devices – Computer literacy is an essential skill for everyone计算机文化（知
7. Explain what a network, the Internet, and the World Wide Web are, as well as how computers, people, and Web pages are identified on the Internet.解释网络、因特网、万维网，同时说明因特网中如何识别
4
4
Computers in Your Life生活中的计算机
• Why learn about computers?为什么学习计算机相关（知识） – Pervasive computing 普适计算 • Also known as ubiquitous computing也称作无处不在的计算 • Computers have become an integral part of our lives计算机变成我们生活的必要组成部分 – Basic computer literacy基本的计算机文化（知识） • Understanding what a computer is and how it works理解计算机是什么，它如何工作
• Microcomputers in the early 1980s上世纪80年代早期的微机 – Inexpensive personal computers不昂贵的个人电脑 – Computer use increased dramatically计算机使用（率）极大地提高
6
Computers in Your Life
• Today现在 – Nearly 90% of US households include a computer, and most use computers at work接近90%的美国家庭拥有计算机，大部分用于工作 – Electronic devices are converging into single units with multiple capabilities电子设备正把各种功能融合到单个设备中 • Check e-mail on living room 在客厅的电视机上收电子邮件 television • View Internet content on mobile 在移动设备上查看互联网内容 devices – Computer literacy is an essential skill for everyone计算机文化（知
Unit 3 Computers Reading 课件(共74张PPT)
Unit 3 Computers
Reading
目录
1 Lead-in Pre-Reading 2
3 While-Reading Post-Reading 4
5 Review
Part I Lead-in
Getting ready
Look at the cartoon and answer the questions.
B Before you read
Look at the pictures, the title and the sub-headings of the article on
page 35. Then tick (✓) the facts that the article probably talks about.
What will happen to us if computers can do all our jobs? Will we have nothing to do? Computers may change our lives, but will they make them better?
I. Read the first part of the article and complete the table
×
Part III While-Reading
Read the text and answer the questions
Computer
Smaller and better In the 1940s, the first computers were bigger than cars. Now computers are becoming smaller and better. Some computers are tiny. You may be unaware of them. There is probably one inside your TV or washing machine. You depend on computers more than you realize.
Reading
目录
1 Lead-in Pre-Reading 2
3 While-Reading Post-Reading 4
5 Review
Part I Lead-in
Getting ready
Look at the cartoon and answer the questions.
B Before you read
Look at the pictures, the title and the sub-headings of the article on
page 35. Then tick (✓) the facts that the article probably talks about.
What will happen to us if computers can do all our jobs? Will we have nothing to do? Computers may change our lives, but will they make them better?
I. Read the first part of the article and complete the table
×
Part III While-Reading
Read the text and answer the questions
Computer
Smaller and better In the 1940s, the first computers were bigger than cars. Now computers are becoming smaller and better. Some computers are tiny. You may be unaware of them. There is probably one inside your TV or washing machine. You depend on computers more than you realize.
高中英语高一必修《Computer》教育教学课件
grammar
现在完成时的被动语态的谓语构成情势： The results of their experiments have already been published. The party has been planned since the new year. 肯定式：have / has（has只用于第三人称单数，其余人称用 have） + been + 及物动词的过去分词。
grammar
表示某被动动作对现在造成的影响或结果，常与already, yet, just, ever, never, recently等连用。 e.g. The bike has not been repaired yet.
I have already been introduced to Mr. Smith.
grammar
4) 并不是所有动词都有被动语态 happen, take place, break out, belong to, cost, last等不及物动词或 词组无被动语态。 [误] Great changes have been taken place in China since 1978. [正] Great changes have taken place in China since 1978.
grammar
How many experiments have been done by the students this month? 特别疑问句情势： 疑问词 + have / has + been +及物动词的过去分词。
grammar
现在完成时的被动语态通常有以下两种情形： 表示过去开始的被动动作一直连续到现在，常与之连用的时间状语有： for +一段时间，since +时间状语（从句），these days, so far, up to now, in the last / past few years等。
一计算机的概念和特点二计算机的分类三计算机的发展PPT课件
(2)计算精度高 计算机具有以往计算工具无法比拟的计算精度，一般可达十几位，
甚至几十位、几 百位有效数字的精度。这样的计算精度能满足一般实 际问题的需要。1949年瑞特威斯纳 （Reitwiesner）用ENIAC机把圆 周率π算到小数点后27703位，打破了著名数学家商克斯（W.Shanks） 花了15年时间于1873年创下的小数点后707位的记录。这样的计算精 度 是任何其他工具所不可能达到的。
一、计算机的概念和特点
1、计算机概念： 计算机(Computer)是一种电子器件构成的、具有计
算能力和逻辑判断能力、具有自动控制和记忆功能的 信息处理设备。
一、计算机的概念和特点
2、计算机特点：
(1) 运算速度快 计算机能以极快的速度进行运算和逻辑判断，现在高性能计算机
每秒能进行1 0亿 加减运算。由于计算机运算速度快，使得许多过去 无法处理的问题都能得以及时解决。例如天气预报问题，要迅速分析 大量的气象数据资料，才能作出及时的预报。若手工计算需十天半月 才能发出，事过境迁，消息陈旧，失去了预报的意义。现在用计算机 只需十几分钟就可完成一个地区内数天的天气预报。
四、计算机的应用领域
4、计算机辅助设计、辅助制造、辅助教育 计算机辅助设计（CAD —— Computer Aided Design）是利 用计算机的计算、逻辑判断等功能，帮助人们进行产品设计和 工程技术设计。 计算机辅助设计（CAM —— Computer Aided Manufacturing） 计算机集成制造系统（CIMS —— Computer Integrated Manufacturing System）集工程设计、生产过程控制、生产 经营管理为一体的高度计算机化、自动化和智能化的现代化生 产大系统。 计算机辅助教育(CBE——Computer Based Education) 包括 计算机辅助教学(CAI)、计算机辅助管理教学(CMI)。
甚至几十位、几 百位有效数字的精度。这样的计算精度能满足一般实 际问题的需要。1949年瑞特威斯纳 （Reitwiesner）用ENIAC机把圆 周率π算到小数点后27703位，打破了著名数学家商克斯（W.Shanks） 花了15年时间于1873年创下的小数点后707位的记录。这样的计算精 度 是任何其他工具所不可能达到的。
一、计算机的概念和特点
1、计算机概念： 计算机(Computer)是一种电子器件构成的、具有计
算能力和逻辑判断能力、具有自动控制和记忆功能的 信息处理设备。
一、计算机的概念和特点
2、计算机特点：
(1) 运算速度快 计算机能以极快的速度进行运算和逻辑判断，现在高性能计算机
每秒能进行1 0亿 加减运算。由于计算机运算速度快，使得许多过去 无法处理的问题都能得以及时解决。例如天气预报问题，要迅速分析 大量的气象数据资料，才能作出及时的预报。若手工计算需十天半月 才能发出，事过境迁，消息陈旧，失去了预报的意义。现在用计算机 只需十几分钟就可完成一个地区内数天的天气预报。
四、计算机的应用领域
4、计算机辅助设计、辅助制造、辅助教育 计算机辅助设计（CAD —— Computer Aided Design）是利 用计算机的计算、逻辑判断等功能，帮助人们进行产品设计和 工程技术设计。 计算机辅助设计（CAM —— Computer Aided Manufacturing） 计算机集成制造系统（CIMS —— Computer Integrated Manufacturing System）集工程设计、生产过程控制、生产 经营管理为一体的高度计算机化、自动化和智能化的现代化生 产大系统。 计算机辅助教育(CBE——Computer Based Education) 包括 计算机辅助教学(CAI)、计算机辅助管理教学(CMI)。
计算机介绍英文版PPT课件
What is a floppy disk?
➢ Thin, circular, flexible disk enclosed in rigid plastic shell
➢ A USB flash drive is portable, and has much greater storage capacity
➢ Housed inside the system unit
p. 9 Fig. 1-6
.
Next
15
The Components of a Computer
What is a compact disc?
➢ Flat, round, portable metal disc
▪ CD-ROM ▪ CD-RW ▪ DVD-ROM ▪ DVD+RW
Accepts data
Raw facts, figures, and symbols
Processes data into information
Data that is organized, meaningful, and useful
Produces and stores results
p. 6
p. 7 Fig. 1-3
.
Next
6
The Components of a Computer
What is an output device?
➢ Hardware that conveys information to a user
Click to view Web Link, click Chapter 1, Click Web Link from left navigation, then click Output Devices below Chapter 1
➢ Thin, circular, flexible disk enclosed in rigid plastic shell
➢ A USB flash drive is portable, and has much greater storage capacity
➢ Housed inside the system unit
p. 9 Fig. 1-6
.
Next
15
The Components of a Computer
What is a compact disc?
➢ Flat, round, portable metal disc
▪ CD-ROM ▪ CD-RW ▪ DVD-ROM ▪ DVD+RW
Accepts data
Raw facts, figures, and symbols
Processes data into information
Data that is organized, meaningful, and useful
Produces and stores results
p. 6
p. 7 Fig. 1-3
.
Next
6
The Components of a Computer
What is an output device?
➢ Hardware that conveys information to a user
Click to view Web Link, click Chapter 1, Click Web Link from left navigation, then click Output Devices below Chapter 1
Computers Unit2 When do you use a computer教学课件
Activity One Read para.3 and answer the questions.
1. Do Mike’s parents use a computer at home? No, they don’t.
2. What does Mike usually do on the computer? He sends email to his friends and plays computer games.
travel /trəevl/
n. 顾客 n.澳大利亚 n. 游戏 v. 分享；共用 n. 公司；剧团 adv. 经常 n. 因特网 v. 检查；查看 n. 火车 v. 旅行
Read after the tape
plan /pləen/
n. 计划 v. 计划；打算
ticket /’tɪ kɪ t/
n. 票
music /’mju:zɪ k/
n. 音乐
movie /’mu:vi/
n. 电影
night /naɪ t/
n. 夜晚
search /sɜ: tʃ /
v. 搜寻；搜索；搜查
search for
搜寻；查找
information /, ɪnfə’meɪʃn/ n. 信息
email /’i:meɪl/
2. What does Zhang Lei do on the computer?
A. Listen to music. B. Watch movies.
C. Do his homework. D. Both A and B.
3. Does Zhang Lei use the computer every night?
Read and choose the right answer.
计算机的发展史ppt课件
相关人物事件
1623年：
德国科学家契克卡德 （W.Schickard）制 造了人类有史以来第 一台机械计算机。
1642年：
法国科学家帕斯卡 （B.Pascal）发明了 著名的帕斯卡机械计 算机，首次确立了计 算器的概念。
1674年：
莱布尼茨改进了帕斯卡的计算机，使 之成为一种能够进行连续运算的机器。
1964年：
4月7日，在IBM成 立50周年之际，由年仅 40岁的吉恩.阿姆达尔 （G. Amdahl）担任主 设计师，历时四年研发 的IBM360计算机问世， 标志着第三代计算机的 全面登场，这也是IBM 历史上最为成功的机型。
1965年：
DEC公司推出 了PDP-8型计算 机，标志着小型机 时代的到来。
第四代大规模和超大规模集成电路计算机:
起止年代为1972年至今,主要元器件是大规模及 超大规模集成电路,这时候的计算机性能大幅度提高, 价格大幅度下降,广泛应用于社会生活的各个领域.
第五代：
第五代计算机指具有人工智能的新一代计算机，它 具有推理、联想、判断、决策、学习等功能。计算机 的发展将在什么时候进入第五代?什么是第五代计算机? 目前还没有明确的说法。但有一点可以肯定，在现在 的智能社会中，计算机、网络、通信技术会三位一体 化。新世纪的计算机将把人从重复、枯燥的信息处理 中解脱出来，从而改变我们的工作、生活和学习方式， 给人类和社会拓展了更大的生存和发展空间。
第二代晶体管计算机:
起止年代为 1958~1964年,主要元件 是晶体管,这时候的计算 机体积减小,耗电较少,运 算速度提高,价格下降.不 仅用于数据处理和事务管 理,并逐渐用于工业控制.
第三代中小规模集成电路计算机:
起止年代为1965~1971 年,主要元器件是中小规模集 成电路,这时候的计算机体积. 功耗进一步减小,可靠性及速 度进一步提高.应用领域进一 步拓宽至文字处理,企业管理, 自动控制,城市交通管理等方 面.
computerPPT
T
T F T
We formed a band and soon we became famous and went to Britain to give performances.
Then what would happen in Britain? We would succeed or fail?
Summary (3m)
What’s the main idea of the story?
This is a story about a band that became famous and did not like it.
Retell (5m)
Freddy how formed a band went to Britain to give performance the result problems caused by being famous why left Britain
was followed everywhere
Homework
Express your opinion on the following questions. • What do you think are the advantages of being famous? • What are the advantages of not being famous? • Do you think you would enjoy being famous?
Read the text in detail and answer the following questions.
1. What was Freddy’s most exciting experience in London? 2. What happened when the programme was over? 3. What problem was caused after they became stars? 4. Did Freddy and his band leave Britain at last?
《科技英语》PPT课件
computers enable them to perform operations
at high speeds.
元件，构件
计算机在体积上差别很大，最小的可以嵌入 一块手表内，而最大的则可以占据整个房间。计 算机的电子元件可以使其以高速运行。
The fastest computer is
able to perform billions of calculations per second. Computes
期望的结果
对每个问题，使用者都必须提供必需的数据并预先编好正确的程序 （运行顺序），计算机通过程序处理数据并给出期望的结果。
Because of , on account of
极大的，巨大的
晶体管
Owing to the tremendous progress in
the micro-miniaturization of the transistor
实际上
部门，扇区
增生，扩散
自20世纪60年代后期，由于晶体管（计算机 的基本元件）在微型化方面取得的巨大进展，廉 价的小型计算机在社会的各个部门都得到了广泛 的应用。
发达国家
帮助，支援
Industrialized countries have become
dependent on computers to assist in daily
since it normally also contains the
arithmetic and logic unit, is known as the
central processing unit (CPU), namely the
central processing unit (CPU) consists of a
七年级第七模块computers讲课课件
Homework 必做：Try to write homework on the computer. 选做：Write a short massage about using computers to do homework.
听后说
How
do you open a new document? do you write your homework?
Where
How
do you save the document? do you write its name?
Where
How
do you print the document?
Listen and choose do you write your homework?( A ) A. In the new document. B. on the book Where do you write its name?( A ) A. In the box. B. on the paper How do you print it? ( B ) A. Click “print” B. Click “print” and “OK”.
学习重难点
能听懂如何使用电脑的对话。 能够复述课文中的重要信息。
Free talk
1.Do
you like the computer ? 2. what do you usually do on computers?
go online use Internet
上网
使用网络
发送件
send emails make travel plans
Discuss
Do
you like to write your homework on the exercise book or on the computer? Why?
人教版高一英语必修二课件：Unit3Computers (共77张PPT)
6．_c_a_lc_u_l_a_te_ vt. 计算 _c_a_lc_u_l_a_ti_o_n_ n. 计算；估计；推测 _c_a_l_c_u_la_t_o_r_ n. 计算器 7．__s_i_m_p_l_if_y_ vt. 简化 _s_i_m_p__le_ adj. 单纯的；易懂的；朴素的 _s_i_m_p__ly_ adv. 简单地；朴素地；仅仅
appearance 11．_a_p_p_e_a_r_____ n. 外观；外貌；出现
te_c_h_n_o_l_o_g_y_ vi. 出现 12．te_c_h_n_o_l_o_g_ic_a_ln. 工艺；科技；技术
c_h_a_r_a_c_te_r_____ adj. 科技的 13．c_h_a_r_a_ct_e_r_is_t_icn. 特点；性格
logical 19．lo_g_i_c_a_ll_y__ adj. 合逻辑的；合情理的
u_n_iv_e_r_s_a_l_ adv. 逻辑上；合逻辑地 u2n0i．ve_r_s_e_____ adj. 普遍的；通用的；宇宙的 ____a_r_t_i_fi_cianl. 宇宙 21．a_n_y_h_o_w____ adj. 人造的；假的 22．________ adv. 无论如何；即使如此
5．He has thought of a way of solving the problem.
→_________________________________________ ______A__w_a．y of solving the problem has been thought of
2.signal vi & vt.发信号 n．信号 [教材原句] For example，I have learned to signal to my teammates in computer language to give me the ball when I am open and have a good shot for a goal. 例如，当我启动的时候，我可以用计算机语言向队友 示意把球传给我，这样可以有一个漂亮的射门。
computer_课件
Do you know who I am? notebook computer
A huge computer
Palmtop
A PC
Who am I ?
Skimming: Go over the story to find out
who the speaker is. Write down 3 sentences to support your idea. It is a computer. ● I was built as an Analytical Machine by Charles Babbage.” ●”My real father was Alan Turing ....” ● I was able to share my knowledge with others through the World Wide Web.
• Intelligence: cleverer
• Speed: quicker • Function: calculating----dealing with …, communicating with… • People’ opinion: clever & useful
Consolidation: Retelling
I can be used for calculating. Besides, I can also be used for watching DVD, sending e-mail and communicating through the Internet. However, I am not a PC, because I’m small enough for you to take me with you.
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中央处理单元
主板 存储器，内存 随机存储器(内存)
硬盘
Now we are in the Internet era.
Scene 1 one family
Internet makes our life more convenient.
• Internet plays a very important role in modern life.
Computer devices
hardware computer
硬件
Personal Comห้องสมุดไป่ตู้uter（PC） 个人计算机
keyboard
键盘
mouse
鼠标
monitor
监视器
LCD (Liquid 液晶显示屏
Crystal Display)
Computer devices
CPU (Center Processor Unit) main board memory RAM (Random Access Memory) Hard Disk
Negative effects
• A great deal of junk information spread through the Internet, which disturb our life terribly.
Negative effects
• People who spent more time on the Internet spent less time socializing with friends.
谢谢大家
荣幸这一路，与你同行
It'S An Honor To Walk With You All The Way
演讲人：XXXXXX 时 间：XX年XX月XX日
•It also brings many chances to us, for example job application.
Positive effects
• Internet is just like a bridge of communicating between people.
Positive effects
Shopping online has become a modern part of our life. Save both money and time, and offers more
choices for customers.
Positive effects
• You can enjoy the beauty of nature all over the world at the same time without stepping outside.
Negative effects
People spend so much time surfing the internet at the cost of their health .
Summary
• Generally speaking, Internet is a double edged sword. If we know what we need clearly and how to take advantages of internet responsibly.
• It revolutionized our lives in many ways.
Positive effects
• Internet is a window on the world for children.
• Internet makes our study and work more convenient. Now there are a lot of searching engines on the Internet,ts ignore study since they are addicted to computer games
seriously.
Negative effects
• There are so many traps(陷阱 ) that beyond our guard!
I am sure it will affect our modern life in a positive way and make our life more wonderful and splendid.
结束语
当你尽了自己的最大努 力时，失败也是伟大的 ，所以不要放弃，坚持 就是正确的。
When You Do Your Best, Failure Is Great, So Don'T Give Up, Stick To The End
• People all over the world can gathered together through the internet.
But ···
Scene 2 another family
Internet is harmful to some people.
• Negative effects