Computer is another name for computer. Because of this, people often associate it with addition, subtraction, multiplication and division, which makes us students who have studied hard for 16/7 years full of expectations for it.
When I was in primary school, the computer used a pen to calculate: when I learned abacus in middle school, I had reached the highest level of "dividing what I saw by nine"; After going to college, it is obvious that both written calculation and abacus calculation can't keep up with the speed of calculation, so we have to use a logarithmic slide rule with poor accuracy. After doing this, participants are required to have high calculation accuracy and use hand-cranked computers for multiplication and division.
This hand-cranked computer is worthy of the name, and it is specially used for multiplication and division. Although it was noisy to use and its speed was far less than that of the widely used calculator, it was a rare "treasure" at that time.
1in the spring of 979, the secretary of the Party branch in my hometown saw me using a hand-cranked computer at work. After returning to my hometown, he really praised me, saying that I could work out a number of hundreds of thousands in a blink of an eye, which was really amazing! The first time I was educated in computer knowledge, it came from related magazines in the 1960s and 1970s. In the introduction of "Application of Computer", I saw an introduction to prove the four-color theorem with a picture and a computer.
The four-color theorem, a geographically recognized truth, means that only four colors are needed to draw a map, but there was a lack of necessary proof at that time. With the help of the computer, it took more than two hours to prove it.
If it is proved manually, it really needs generation after generation. In the mid-1980s, with its inherent mystery, computers entered the doors of some government agencies and units in the provincial capital, and people welcomed the arrival of the first batch of computers as if they were newlyweds.
At that time, many units stipulated that computers should be installed in special rooms, with wooden floors and appropriate heightening; Operators must wear overshoes to enter, and their hands and faces should be clean; Wait a minute. At the leadership meeting of a unit, there was an oral decision that non-staff members were not allowed to enter the computer room to prevent "virus" infection.
The widespread use of computers is a manifestation of social progress. People's application of it, from the initial general operations such as transmitting reports and printing files, has gradually expanded to all aspects of this industry, and the work efficiency is getting higher and higher, which shows the magic of computers.
Our highway industry adopts computer drawing, which saves many troubles such as drawing base map, pencil depth, tracing and printing, and is extremely fast. Moreover, computer drawing has high accuracy and beautiful pages, which is very popular with users.
Nowadays, people do business communication and send an email instead of printing and mailing materials, which is convenient and fast. A USB flash drive weighing tens of grams records considerable and rich information and becomes a good helper for carriers to use at any time.
Learning to use a computer requires hard work, otherwise it will be difficult to uncover its mystery. 1998, when I was still working, my former unit provided me with a computer, which gave me the opportunity to contact and learn to use it.
That year, I was all thumbs at the age of 55. In order not to regret for life, I began to learn computer life like a primary school student, and it has been seven years in a flash.
In the past seven years, although I have never stopped studying and operating, and I can't remember how many times I "worshipped" Master, I am still not very skilled in fingering, not to mention I have not been exposed to most fields. If we don't try to explore deeply, computers will always be mysterious to us.
At this point, I understand why people should "live and learn". The knowledge stored in the computer is rich in content, and it also contains entertaining content.
Playing computer games is ok, but it should be moderate. There is an old saying that it is beneficial to open books, which means that if you study, you will always gain something.
Just say "turn on your cell phone" now. In leisure time, when you are bored, it is also a kind of gain to turn on the computer to play, practice fingering and enlighten.
Before the Spring Festival, I had two laptops at once. One was bought, and the other was "given" by a naughty little apprentice: "Please put your notebook on the table, and then put your chin on it. Well, this is my Spring Festival gift to Master-a notebook to pad the brain. "
Computers and brain pads make me happy. I believe that, like the popularity of color TV, the popularity of computers will not be too far away, and it will be faster than the popularity of color TV.
With the development of science and technology, computers have entered many people's lives. It has brought us a lot of convenience, increased our knowledge and broadened our horizons.
The computer is divided into three main parts: monitor, host and keyboard, and some auxiliary hardware. The host is the manager of the computer family, which is equivalent to the human brain. It is in charge of almost all documents and information, and is mainly responsible for the work you want the computer to do. It also assigns jobs to other family members, so other family members are called "peripherals".
The monitor is a main output device, and its task is to show the ideas of the main managers. Before it was connected to the video card of the host computer through a video cable, people used a 14-inch spherical display, but now 15-inch flat and right-angled display has gradually become popular. The screen of this monitor is almost on the same plane, unlike the previous monitor, the picture effect has been greatly improved. Keyboard, the function of which is opposite to the display, is responsible for the "input" of the main manager and the user's work requirements for the main manager.
The user's instructions must go through it before they can be told to the general manager. Through it, the general manager knows what to do.
It contains 26 English letters, 4 direction keys, the number 10 and some indispensable function keys. They stick to their posts and serve the host.
Computers also have a small tail, which is the mouse. In recent years, with the popularization of Windows graphical operation interface, the keyboard is basically no longer used to input commands, and the general manager can be told what to do by operating the left or right mouse button. Although it is small, it brings great convenience to computer users.
Speakers belong to the multimedia computer family. Nowadays, multimedia computer families with sound and images are becoming more and more powerful, attracting many computer enthusiasts. The voice of the main manager is told to the speaker through the sound card, and then conveyed by it. Now the voice of multimedia computer.
2. Write a composition, the topic is the story of computer, me and computer. I have a constant fascination with computers and endless grievances. Sometimes we are good friends, and sometimes we are sworn enemies.
Let me talk about my "love" with the computer first!
For a while, I had a lot of homework and my mother was very busy with my study. Every day, you should either choose to read the Olympic Mathematics or do hundreds of books. I am "Cao Cao in my heart and Han in my heart". Although I was solving a problem, I stared at the computer and soon began to stay. Until mom pushed the door in. "Why did you only write two questions, huh?" My mother questioned me severely.
However, after all, I can't hide from my careful mother. She asked me, "Do you want to play computer?" I nodded and begged, "Mommy, I only read two chapters of My Cat City. Please let me finish! " Mother flatly refused: "no, you are at a critical moment in your study." In addition, watching computers affects your eyesight, so let's do the problem! Do it quickly and finish ten questions before going to bed! " I had to go back to my desk to do the problem in frustration.
In order to have more time to play computer. Later, I went to my grandmother's house with reading and Olympics, waited for my sister to eat at noon, and worked hard to finish my homework at school. Go home and "declare glory" to your mother and be attentive to her. My mother read my mind at once. Say, "You little brat, just say what you're going to do." I can only tell my mother what I really think. My mother kept silent at first, but later, because she couldn't stand my softness and hardness, she finally found her conscience. So, I rushed to the computer, hugged and kissed. At the moment, my mood is extremely excited.
However, sometimes, I hate computers.
Once, when I sent a message to my classmates on QQ, my computer suddenly "knotted". I pressed the keyboard crazily and finally recovered. I saw a message from her: "Your typing speed is too slow!" 5555555,5 is really dumb to eat Rhizoma Coptidis-it's too bitter to say!
Another time, I watched Qian Zhongshu's Fortress Besieged on the Internet. Just when I was about to see the bright spot, I heard a "ding" and a box popped up, covering the part I wanted to see. There is a pattern with a red round bottom and a white cross on the frame, which indicates that there is something wrong with the system management, and then it crashes. I am flustered and at a loss. Because I'm just a novice in computer system management. So I had to press the keyboard, smash the mouse and scold that disappointing thing-the computer. As soon as my sister who was playing aside saw me like this, she shouted, "Sister has a nervous attack!" " "This makes me very embarrassed. I really wanted to punch that little villain at that time.
Computer is not only a good helper in my study, but also a good tool for me to communicate with my classmates, but sometimes it is also the fuse of my "war" with my mother. While it brings me happiness, it also adds a lot of troubles, but to be honest, I really can't tell the judge without it.
3. The computer for writing computer composition has been developing at an incredible speed since its birth. They have been used by scientists and educators for large-scale scientific and technological operations. After four generations of development, it has gradually spread. Now, computers have penetrated into every corner of people's lives and work. The popularity of computers and their extensive and profound influence on people's work and life were unimaginable to many people in previous years, but now, computers have entered thousands of households and become one of the necessary equipment in many families, and even can be called a member of the family. In the process of computer popularization, computers have changed or even subverted the concept of family life with their powerful performance.
Computers can easily realize various functions, creating more possibilities for family entertainment. We can all feel that the development of digital home and home entertainment is inseparable from computers with more powerful performance and richer functions. The role of computer in family has changed greatly. It will play a more important role, gain a more important position and play the role of locomotive in family entertainment.
4. Writing computer composition In this 2 1 century, high technology is developing, and we have to learn a lot of knowledge to keep up with the society. Now the rule of "illiteracy" is not only to learn what we want to learn, but also to learn computers well. The computer has brought me into a new world.
Computers have played a great role. Students often use it in their work. Of course, we also use it in our study. My English is not good, so I often don't know how to learn English well. We should learn computers well and know that computers can search the information we want. I turned on the computer and typed in "How to learn English well". Soon many articles about learning English came out. You see, it can be found in less than a minute. If you look in the library, you will find it. Computers help me learn English well and open up a new world for my study!
The computer spans the whole world, and it can flow from home to home, and it can learn the governance that is beneficial to home. You can learn about the customs, culture and views on some things between and. Middle school students should learn some cultural knowledge. Every computer is connected. For example, we can enter the international chat room and stream in English, which can exercise my ability. I had a cultural exchange with a beautiful girl and let me know that their family is very developed. Their lives are very rich. I also know the local customs there, and the computer has made me know many friends!
Computers are very advanced, which makes us feel novel. In the medical field, computers have played a great role. In medicine, doctors use computers to help them treat diseases. Some need very delicate surgery, but now they don't need surgery, just a computer can cure the disease. Many scientists have done many important experiments with computers. Just like "SARS", it is scientists who use computers to analyze and learn the origin of SARS and extract the essence, which makes many people survive.
Many scientists use computers, and many accurate figures can only be obtained by using computers. In some developed cities, teachers don't have to give lectures in school classes because they all use computers. This is also very representative!
The computer is my friend, my second teacher, and it led me into another new world!
5. Talk about your understanding of computers Write a 70-word composition English name: puter Official name: electronic computer abbreviation: computer pinyin: Dian Ji transformation: We might as well change' big' to' electricity' and know that the brain has been transformed into a computer. Homo sapiens linked the brain with the development of science and technology because of the change of thinking, and later had a computer. Computers first evolved into typewriters. So there must be a keyboard, but there must be intermediate processing, so there is a CPU. The CPU of a computer is like the highest command executor of the human brain, and the memory allows the brain to store. Later, people thought it was necessary to have power supply, display information, display screen and tools to connect the display screen and CPU, so graphics cards appeared later, but there was a place to put CPU and memory, so there was a motherboard, because there was a place for direct storage between computers.
With more and more computers, information must be connected, so there is a network card. Because there are too many things such as CPU and motherboard. It is necessary to pack it, so the case appeared, because with the development of science and technology.
Simple numbers can no longer include the information age, because there have been pictures, videos and so on. In order to operate more conveniently, the mouse is coming! That's it. Add some connecting wires. The basic computer is thus produced! Because of the CPU, the computer has become an advanced mechanical machine! 1. "Software" includes: operating system, application software, etc.
Application software is the management software of computer industry, the necessary weapon for the development of IT computer industry and the erp software of computer industry. 2. "Hardware part" includes: chassis (power supply, hard disk, memory, motherboard, cpu, optical drive, sound card, network card, graphics card) display, keyboard and mouse.
(Can also be equipped with speakers, etc. An electronic computer is a machine that processes data according to a series of instructions.
Related technical research is called computer science, and data-centered research is called information technology. There are many kinds of computers.
In fact, computers are generally tools for processing information. According to Turing machine theory, a computer with the most basic functions should be able to do anything that other computers can do.
Therefore, regardless of time and storage factors, all personal digital assistants (PDA) and supercomputers should be able to accomplish the same job. In other words, even computers with the same design should be used for various tasks, from company salary management to unmanned spacecraft control, as long as they are modified accordingly.
Due to the rapid progress of science and technology, the next generation of computers can always significantly surpass their predecessors in performance, which is sometimes called "Moore's Law". Computers have different forms in composition.
Early computers were as big as a house, but today some embedded computers may be smaller than a deck of playing cards. Of course, even today, there are still a large number of supercomputers serving large organizations for special scientific computing or transaction processing needs.
Relatively small computers designed for personal applications are called microcomputers, or simply microcomputers. We usually mention this when we use the word "computer" in our daily life today.
However, the most common application form of computer now is embedded. Embedded computers are usually relatively simple and small in size, and are used to control other devices-whether airplanes, industrial robots or digital cameras.
The above definition of electronic computer includes many special devices that can calculate or have limited functions. But when it comes to modern electronic computers, its most important feature is that any electronic computer can simulate the behavior of any other computer as long as it is given the correct instructions (only limited by the storage capacity and execution speed of the electronic computer itself).
Therefore, compared with early electronic computers, modern electronic computers are also called general electronic computers. Copy it online and give you a help.
6. Write a 600-word composition on your computer. With the development of economy and social progress, I believe that most families are equipped with computers.
In our family, my parents bought me a computer for my study. He is a "treasure house of knowledge" and my closest and most harmonious friend.
This friend has a square head and a dark skin. In the computer king, the darker the better, so my friend is very beautiful.
His head has a special function, that is, it can turn at any time, just like a "magician". The mainframe is his brain. Don't underestimate his "brain". It's full of valuables. He can store all the information and materials in this brain.
If you lose a part, the computer will not only cry, but also can't accompany you. The monitor is the eyes and mouth of the computer.
As long as you tell it the correct command, it will shine at the moment, immediately appear on the display screen, and "say" the program you want without missing a word. The mouse is his hand, you can control it at any time.
Of course, I'm only talking about a part of him, as well as the speaker and the regulated power supply ups. Their functions are amazing! With the computer, I have to ask him for help in many things in my study. At first, all I learned was to look up information.
There is a lot of extra-curricular knowledge to look up in the textbooks we study, so the computer has become my good helper. Sometimes, if you encounter problems that you can't learn, you can also look them up on the computer.
I remember once in an English class, there was a multiple-choice question, which was in, on and at. The theme is there are some birds-trees. I remember my mother once told me that I should fill in the blanks with in, but the teacher used on in class.
I don't think so. After coming home from school, I immediately opened my "knowledge treasure house" to find the right answer. The computer said the same as mine. The next day in class, I gave the teacher the information I was looking for.
The teacher asked us to correct it immediately after reading it and gave me a high evaluation. I can't help but feel an indescribable gratitude for the computer.
With the computer, my study has also improved a lot. Gradually, I got to know the Internet from the computer. It's another endless world. You can create as much as you want, and you can make more friends.
Because I like writing, I often post my own compositions on the primary school students' composition online, and I can also check the compositions written by other children. In this way, my composition level has also improved.
With computers, my life has become rich and colorful. If you are tired of studying, you can chat with your classmates on QQ, or you can play games to relax.
Now my feelings with computers are getting deeper and deeper, and we have become the closest friends. Of course, I love it very much, and I always operate it carefully. After using it, I put a veil on it in case it falls on the dust.
I love my friend-computer.
I love computer composition 400 words There is a desktop computer on the desk of my big house, which my father bought for my study. It plays a great role and is the hero of our family. I like it very much.
This computer includes: host, display screen, keyboard, mouse and speaker. Although their structures are complicated, they are convenient and quick to use. Let's talk about the host first It is rectangular, its shell is metal, and it looks beautiful in a gray coat. It can send instructions to other parts like the headquarters. The display 19 inch is square and white, and its function is to display files and numbers. The shape of the keyboard is rectangular and black. It has English letters, numbers, symbols and automatic shutdown key. This mouse is shaped like a little mouse. You can hold it with one hand. It's gray. When browsing information, it is an indispensable thing, and it is very convenient to read a long information without pulling hard. You can turn the page by turning the gear directly. The shape of the speaker is rectangular and black, which plays a great role. It is essential to play games and listen to music.
That little computer is very useful. Writing articles by computer is not only fast, but also easy to maintain. It's more interesting to surf the internet with a computer. You can chat with netizens all over the world. As for playing, it is even more interesting. Now all kinds of games are fun, and there are * * *, why not fascinate people! I've always heard people say how fun it is to surf the internet, but I've never seen it. Since I went online, it has really lived up to its reputation and been an eye-opener. I can browse the news all over the world, find information, broaden my horizons, chat with my friends online and send and receive emails. ...
Computer is like an ocean of knowledge, which not only teaches me knowledge, but also brings me endless happiness. I like this computer.
I found it online. I hope I can help you.
8. Writing computer composition has added a new course-computer course since the third grade. The thing "computer" is strange to me, because I have never touched a computer before. Every time I see someone banging on the keyboard in front of a colorful display screen, I have an indescribable envy in my heart.
In the first week of Grade Three, we went to the computer room to have a computer class. I came to the computer room with excitement. Looking at the computer in front of me, I froze. I finally saw the computer. At that moment, my thoughts flew into the computer screen! The teacher divided us into groups, and each group had a computer. I can't wait to sit in front of the computer. Looking at the computer in front of me, I feel deja vu. Computer, computer, I dreamed of you! At this moment, I can't help reaching out to touch the computer in front of me, but I don't know why, I obviously feel my hands shaking. Are they excited? Still nervous? Perhaps out of "awe" of the computer, I finally forced myself to kneel on the ground with restless hands.
I saw the teacher take out something like a mouse. The teacher said, "This is a mouse." The teacher took out another rectangular thing. The teacher said, "This is the keyboard." ..... The teacher told us a lot about computers, but I still don't understand. Nevertheless, I think computer classes are so lively and interesting!
The most sacred moment of testing has finally arrived, and the teacher solemnly announced: "Turn on the computer." I was so excited that I turned on the computer with trembling hands. At that moment, my hand seemed to be hit by some unknown current, flowing all over my body along my hand, making my heart ripple! This is my first close contact with my dream computer!
I operate the computer at leisure. Although I was a little strange to computers at that time, the computer in front of me was not very brilliant, but it was enough to make my heart surge! Unconsciously, * * * rang after class, and I reluctantly left the computer room.
There are countless knowledge in the computer waiting for me to learn! I will study this course well in the future and learn more knowledge from it. At that time, I still had a better wish hidden in my heart, and now it has come true, that is, having a computer at home and sitting in front of it to feel the colorful world.
9. Ask for an essay about writing a computer. Inter Milan, which has developed rapidly since the early 1990s, has slowly entered every household in Qian Qian. In our daily life, computers are our good helpers. It has "eighteen martial arts" and can fax, watch movies and listen to music. Computer network will profoundly affect modern people's study, work and entertainment, and penetrate into all aspects of society at an alarming rate. It has become an indispensable thing in modern life.
In the huge netizen group, teenagers account for a large proportion, and they are gradually increasing. Facing the irresistible upsurge of teenagers surfing the Internet, how to guide them correctly has become a concern of schools, teachers and parents. However, the network represents the highest level of scientific and technological development in the world today. We should give full play to its positive role and take corresponding measures to guide the healthy growth of teenagers, so that they can adapt to the development of the information age and keep pace with the times.
Internet provides a relatively relaxed environment for teenagers to vent their bad emotions, and educators can also effectively help teenagers to relieve their troubles and doubts through online chat. The network has brought great convenience for teenagers to master mental health knowledge, conduct self-test of mental health status, psychological consultation, understand mental hospitals, psychologists, mental health research trends and make medical appointments. Network makes it possible for teenagers' personality traits in study, life and entertainment to be more fully respected and satisfied, which is conducive to the development of teenagers' good personality.
The flood of network information may lead to the lack of teenagers' beliefs or the diversification of values, and affect the formation of teenagers' correct outlook on life and values. The concealment of network information reception and dissemination may lead to the weakening of teenagers' moral consciousness and the decline of social responsibility. Internet communication is hidden and unconstrained, and it is easy for teenagers to do some unconventional things and even embark on the road of crime.
The network is actually a double-edged sword. Only by making good use of it can we show its good side and make it make greater contributions to mankind.