General computer force calculator

1.

You can refer to the following, according to some commonly used graphics cards in the Internet bar market, sort out the price and calculation power of a related graphics card, as well as the expected return to the current period, It can be used as a reference:

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power consumption: 243w
computing power: 22.4m
price of graphics card: 1999 yuan
quantity of eth g every 24 hours: 0.015
revenue generated every 24 hours: 24.48 yuan
expected payback time: 81.66 days

power consumption: 159w
computing power: 24.3m
price of graphics card: 1599 yuan Yuan
number of eth g every 24 hours: 0.017
revenue generated every 24 hours: 27.9 yuan
estimated payback time: 57.31 days

total power consumption: 171w
computing power: 24.4m
price: 1999 yuan
number of eth g every 24 hours: 0.017
revenue generated every 24 hours: 27.87 yuan
estimated payback time: 71.73 days

< H2 > extended data:

Video card (graphics card) full name display interface card, also known as display adapter, is the most basic configuration of computer, one of the most important accessories. As an important part of the computer host, the graphics card is the equipment of digital to analog signal conversion, and it undertakes the task of output display graphics

the graphics card is connected to the main board of the computer, which converts the digital signal of the computer into an analog signal for the display. At the same time, the graphics card still has the ability of image processing, which can help the CPU work and improve the overall running speed. For those engaged in professional graphic design, graphics card is very important. Civil and military graphics chip suppliers mainly include amd (ultra micro semiconctor) and NVIDIA (NVIDIA). Today's TOP500 computer, including graphics card computing core. In scientific computing, graphics card is called display accelerator

2. The key is that kind of calculator is more convenient. The speed of mobile phone is not as fast as calculator
the calculator on Google play calculates an integral. If it's a little more complicated, it will take about 4S< Moreover, the calculator is usually used by people with special needs.

3. Lightcoin calculator calculated for reference only, not necessarily real income, recommend several mining graphics card to you, hd7990 R9 290x gold slave miner data card R9 280x

4. The Japanese supercomputer "K" made by Fujitsu ranks first, becoming the fastest supercomputer in the world
the running speed of supercomputer K is 816 million floating-point calculations per second (petaflops), which is composed of 68544 sparc64 viiifx processors. Each processor has 8 built-in cores, and the total number of cores is 548352. According to Fujitsu, the supercomputer is still under construction and will be put into operation in November 2012, when the number of processors will increase to 80000<

previously, China's Tianhe-1A ranked first, and ranked second in the latest list, with an operation speed of 257 million floating-point calculations per second. At the same time, China is also improving the computing speed of Tianhe-1. In third place is the United States "Jaguar" (Jaguar), the speed of 1759 million floating-point calculations per second.

5. 1. Students generally feel that the accuracy of calculation will decline after they are separated from the scientific calculator
the inaccuracy of operation is largely e to the lack of deep understanding of basic concepts, the lack of thorough grasp of basic formulas and rules, and the lack of proficiency in their application. Therefore, in teaching, teachers should consciously and systematically equip some exercises without using calculators. When students are proficient in the application of concepts, formulas and rules, and their accuracy is guaranteed, they may as well use calculators again. The calculator as a learning aid, so as to liberate students from the operation, into the study of other problems
2. The effect of using calculator on flexibility
calculation should be reasonable, simple, skilled and fast, which requires students to be flexible in calculation and quick in thinking. The improvement of this ability requires students to observe and think about problems from many aspects, angles and directions. The scientific calculator can quickly solve the complicated calculation, if students blindly use the calculator, they will simply and mechanically input the data to solve, without thinking about how to solve the problem quickly and concisely. The lack of training in this area means that we have lost the effective way to improve our computing ability. I think we can have a class (or several classes) of using calculators to solve problems after a certain part of the content is finished. Before that, calculators are not allowed to be used. For example, in the seventh grade, some students use calculators to solve problems after adding rational numbers, and some use calculators after subtraction. It's better to finish the basic course, and then have calculators after students practice. Or, when encountering this kind of problem, such as calculating 18.75-15.39 + 1.25-14.61, students are required to solve it in a simple way, so as to consciously help students to calculate flexibly, reasonably and simply
3. The impact of using calculator on strictness
when using calculator, the calculation process is generally omitted. However, whether it is the usual requirements or the examination, the problem-solving process is required to be complete and standardized. In fact, this is the embodiment of the thinking process. Due to the lack of training in the use of calculators, the students' problem-solving is not standardized and complete, which is a serious defect and is very unfavorable to the improvement of students' mathematical thinking and mathematical quality
4. The influence of using calculator on mathematical thinking and psychological quality
operation plays a significant role in cultivating students' scientific way of thinking and forming good thinking habits and psychological quality. If students use scientific calculators excessively, they will be unwilling to spend time thinking and doing standard calculations, so as to engage in them rashly. As time goes by, thinking is not orderly and chaotic, and calculation is graally unfamiliar. In addition, we have formed the bad habit of carelessness and carelessness, and lack the training of will and perseverance. At the same time, some students are only used to one-way, single-level operation, used to forward calculation, not used to multi-directional, multi-level operation, not used to reverse operation. Without the scientific calculator, students have to pay attention to the direction and skills of calculation, so as to form the habit of looking ahead and looking after the whole situation. Through long-term training, students' mathematical thinking ability and confidence and perseverance are improved
the tradition of Chinese ecation attaches importance to the training of basic skills. Chinese students often have a solid foundation, and some American College Students' computing ability is not as good as Chinese middle school students. However, the advantage of basic skills of computing ability is less and less obvious for high school students nowadays. A senior high school mathematics teacher said: "many colleagues have such a feeling. Now, as soon as they go to senior one, they have to make up for the calculation for the students. Teachers and students feel that it's hard." A high school student's parents said: "because calculators can be used in the high school entrance examination, but they are not allowed in the college entrance examination, so my son should give up calculators first after he goes to high school. Because of his long-term dependence on calculators, his son doubted his ability of oral and written calculation, and was not at ease with the results of calculation. It's a waste of time. After more than a year, I finally gave up the calculator. " This kind of phenomenon is also the place that I feel puzzled. Why can I use calculator in senior high school entrance examination, but not in college entrance examination? How can students adapt to this change as soon as possible< In a word, with the rapid development of science and technology in the information society, the use of computers and scientific calculators is becoming more and more popular. How can we turn a blind eye to middle school mathematics? Can the field of mathematics ecation sit still? The use of calculators is no longer an economic problem, but an inevitable result of social progress and scientific and technological development. But the use of calculators also weakens the students' computing ability and affects the improvement of students' mathematical quality. We must guide students to use calculators reasonably. On the one hand, we should ensure the improvement of calculation ability, on the other hand, we should be able to operate calculators skillfully.

6.

1. Supercomputers:

usually refers to the computer composed of hundreds, thousands or even more processors, which can calculate large and complex tasks that ordinary PC and server cannot complete. Supercomputer is a kind of computer with the strongest function, the fastest computing speed and the largest storage capacity. It is an important symbol of the national scientific and technological development level and comprehensive national strength

2. Server:

refers to some high-performance computers, which can provide services through the network. Compared with ordinary computer, the stability, security, performance and other aspects are higher, so the CPU, chipset, memory, disk system, network and other hardware are different from ordinary computer

the server is the node of the network, which stores and processes 80% of the data and information on the network, and plays an important role in the network. They are high-performance computers that provide various services for client computers. Their high performance mainly includes high-speed computing power, long-time reliable operation, strong external data throughput and so on

3. Desktop:

is a kind of independent and separate computer, which has no connection with other parts. Compared with notebook and netbook, the volume is larger, and the host, display and other devices are generally relatively independent, and generally need to be placed on the computer desk or special workbench. So it's called desktop

as a very popular microcomputer, most of the machines used in homes and companies are desktop computers. The performance of desktop is better than that of laptop

4. Embedded system:

that is, embedded systems
, is an application-oriented, microprocessor-based, software and hardware tailorable special-purpose computer system, which adapts to the application system's strict requirements on function, reliability, cost, volume, power consumption, etc. It is generally composed of embedded microprocessor, peripheral hardware, embedded operating system and user's application program

extended data

computer microprocessor (CPU) takes transistor as the basic component. With the continuous improvement of processor and the acceleration of update speed, computer structure and components will also change greatly. With the development of photoelectric technology, quantum technology and biotechnology, it has a great role in promoting the development of new computers

Since 1980s, ALU and control unit (CPU) have been integrated into one integrated circuit, which is called microprocessor

the working mode of this kind of computer is very intuitive: in a clock cycle, the computer first obtains instructions and data from memory, then executes instructions, stores data, and then obtains the next instruction

this process is repeated until a termination instruction is obtained. Explained by the controller, the instruction set executed by the arithmetic unit is a well-defined and very limited set of simple instructions

The traditional computer processing information is mainly characters and numbers. In fact, people are more used to pictures, words, sounds, images and other forms of multimedia information. Multimedia technology can integrate graphics, images, audio, video and text, making the object and content of information processing closer to the real world< br />

7. Finiteness, finiteness and finiteness are all finiteness. If they were infinite, the weather, the code and even the universe would have been cracked

8. It's not about computers. Although it's very complicated to go to the moon, and at that time, the computer instry couldn't run well when Apollo went to the moon, the cancellation of unimportant operations still ensured the landing. Nowadays, the computing power of many satellites is not so strong, and the main requirement for going to space is to be stable, I remember the processor model of the Mars rover landing on Mars: IBM rad 750 processor (PowerPC Architecture)
main frequency: 200 MHz
proction process: 150 nm
secondary cache: 256 KB
computing power: 266 ~ 400 MIPS (Atom Processor: 3300 MIPs)
number of transistors: 10 million
full load: 5 W
operating environment: 1.5 w
operating environment: 1.5 W Centigrade - 55 ℃ ~ 125 ℃
with RAM: 256 MB
with SSD: 2GB
with operating system: VxWorks

this u is the most high-end u carried on human spacecraft so far
in terms of processing power, such a guy can't compare with any personal PC, that is, your home computer, but the power consumption is only 5W, and he can work at minus 55 to 125 degrees. It's not easy. The temperature in space changes from minus 200 degrees to above 200 degrees very quickly. It's very safe to have such a high limit CPU

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