Unknown computing power
computing power is a measure of bitcoin network processing power. That is, the speed at which the computer calculates the output of the hash function. Bitcoin networks must perform intensive mathematical and encryption related operations for security purposes. For example, when the network reaches a hash rate of 10th / s, it can perform 10 trillion calculations per second
in the process of getting bitcoin through "mining", we need to find its corresponding solution M. for any 64 bit hash value, there is no fixed algorithm to find its solution M. we can only rely on computer random hash collisions. How many hash collisions can a mining machine do per second is the representative of its "computing power", and the unit is written as hash / s, This is called workload proof mechanism pow
computing power provides a solid foundation for the development of big data, and the explosive growth of big data poses a huge challenge to the existing computing power. With the rapid accumulation of big data in the Internet era and the geometric growth of global data, the existing computing power can no longer meet the demand. According to IDC, 90% of the global information data is generated in recent years. And by 2020, about 40% of the information will be stored by cloud computing service providers, of which 1 / 3 of the data has value
therefore, the development of computing power is imminent, otherwise it will greatly restrict the development and application of artificial intelligence. There is a big gap between China and the advanced level of the world in terms of computing power and algorithm. The core of computing power is the chip. Therefore, it is necessary to increase R & D investment in the field of computing power to narrow or even catch up with the gap with the developed countries in the world
unit of force
1 KH / S = 1000 hashes per second
1 MH / S = 1000000 hashes per second
1 GH / S = 1000000000 hashes per second
1 th / S = 100000000000 hashes per second
1 pH / S = 100000000000 hashes per second
1 eh / S = 100000000000 hashes per second
recently, bitcoin's network computing power has entered the era of P computing power (1P = 1024t, 1t = 1024g, 1g = 1024m, 1m = 1024k). In the soaring computing power environment, the arrival of P era means that bitcoin has entered a new stage of arms race. This is the meaning of computing power. I would like to know more about it Please accept)
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What does 1p mean
first of all, 1p computing power is equivalent to about 1.05 million g, which means that if you have 1g computing power of the whole network, you can get almost 1.05 million of bitcoin output of the whole network. According to the output of 3800 bitcoins per day, we can see that the daily income of 1g of computing power has dropped to 0.0036 bitcoins, which is about 2.7 yuan according to the current market price. If the electricity cost and mining machinery hardware cost are included, the profit is almost gone
secondly, 1p's whole network computing power seems amazing, but in fact, in a year's time, you will think it's just a pediatrics, because cointera will launch 2p miner in December, and bitmine will launch 4P miner in March next year. If these companies are not put in biochemical weapons by Syria, it should be expected that bitcoin's whole network computing power will reach more than 10p in a year's time, By then, 1g of computing power will only be able to dig 0.00036 bitcoins a day.
computing power refers to computing power, refers to that in the process of getting bitcoin through "mining", we need to find its corresponding solution M. for any 64 bit hash value, there is no fixed algorithm to find its solution M. we can only rely on computer random hash collisions. How many hash collisions can a mining machine do per second, is the representative of its "computing power". The unit is written as hash / s, which is the so-called proof of work mechanism (POW)
daily training and assistance
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the improvement of calculation ability must adhere to daily training, and rain or shine. Especially for children with poor computing ability, they already lack computational proficiency and sensitivity to numbers, so they should be more strictly enforced. They can't stop practicing just because they are traveling recently, and they can't stop practicing just because they are celebrating the new year recently
some AIDS can be added ring training. The default training is to do oral arithmetic or practice written arithmetic. After mastering the addition and subtraction method within 20, the efficiency of oral and written calculation will be much higher. But in order to strengthen the cultivation of computational ability and consolidate the effect, it is also very important to cultivate the listening, imagination and emotion of numbers
1. Listening and calculating training
when listening and calculating, children have to rely on their listening and imagination of numbers, which is concive to cultivating their comprehensive sensitivity to numbers
if we persist in the training of listening and calculating for a long time, the overall calculation ability will be greatly improved. After listening and calculating training, children's attention and ability to grasp information by ear will also be strengthened, which can improve the efficiency of any course, which is very concive to the long-term learning in primary school and later
2. Image and scene
Computational training is not entirely the interaction between formula and children. If we can set more application scenarios, it will help us to have an intuitive sense of the formula. Such scenes and images at least include: playing card scenes, puzzle game scenes, etc. From experience, many children with strong computing ability are more proficient in some useful chess games and card games. On the one hand, it is helpful for children to combine numbers and graphics to deepen their impression. At the same time, it will have some long-term effects. In senior grade, we often combine these props to set the thinking scene of the test questions
3. Using children's psychology
different perspectives of things will lead to different attitudes towards them. Common curiosity and competitiveness are the psychological factors that can be used. For example, setting up a contest between parents and children, computing is no longer a simple learning task, but also a tool for children to prove themselves and show themselves.
in the process of getting bitcoin through "mining", we need to find its corresponding solution M. for any 64 bit hash value, there is no fixed algorithm to find its solution M. we can only rely on the computer's random hash collisions. How many hash collisions can a mining machine do per second is the representative of its "computing power", and the unit is written as hash / s, This is the so-called proof of work mechanism (POW)
recently, bitcoin's network computing power has entered the era of P computing power (1P = 1024t, 1t = 1024g, 1g = 1024m, 1m = 1024k). In the ever-increasing computing power environment, the arrival of P era means that bitcoin has entered a new stage of arms race
computing power is a measure of the total computing power of the unit that generates new blocks under certain network consumption. The single blockchain of each coin varies with the time required to generate a new transaction block.
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Q: What's the employment direction of marketing graates
A: the FMCG instry ranks first, accounting for 14%, but on the whole, the marketing employment instry covers a very wide range: real estate, Internet, finance, automobile, FMCG, etc. Because the instry needs marketing professionals
Q: how to improve the strength of job hunting
A: from the first year of college, I began to create a perfect resume: I have the internship experience of a well-known enterprise in the instry, get the first-hand experience through internship, and continue to pay attention to the instry trend. We should pay attention to the quality of internship application. For marketing or media, it is more important to grow from internship than to brush the number of internships. In addition, if you can apply for the position of management and training student in the enterprise after graation, it will also be of great help to the application for studying abroad in the future. In addition, it is necessary to pay attention to accurate delivery through contacts in the instry. The endorsement and recommendation effect of people in the circle is much better than that of Haitou's resume, because it is a profession that attaches importance to practical experience, ability proof and precipitation. If we really stick to it and do something, the future road will be better and better
How to learn high school mathematics? Is high school mathematics difficult to learn
Mathematics is an important subject for both liberal arts students and science students, because it is one of the three major courses, and it accounts for a large proportion of the score. If you don't learn mathematics well, you may affect the study of physical chemistry, because those subjects are all through calculation. However, these calculations are also in mathematics. How to learn high school mathematics? What are the good ways How to learn high school mathematics? Students should have their own learning methods. You should not only master the content of the teacher's class, but also consolidate and deepen it after class1. Accuracy of calculation results
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3< In order to improve the mathematical calculation ability of primary school students, efforts should be made in the following four aspects:
first, let students master the operation rules: in primary school, students should learn three kinds of numbers - integers (natural numbers), decimals and fractions, Each kind of operation of each kind of number has its own specific operation rules, and is proficient in all kinds of operations< Second, pay attention to the cultivation of students' estimation ability: the new curriculum includes the cultivation of students' estimation ability, which fully reflects the importance of estimation in mathematical calculation and real life. Estimation ability is also a very important aspect of a person's calculation ability. Good estimation ability has been proved to have four advantages in practice:
1. Help us predict the calculation results; 2
2. It can improve the ability of mathematical analysis
3. It can solve real life problems
4. Check whether the results are basically correct< Third, strengthen the students' mental arithmetic training: in the classroom, generally take the following steps to carry out mental arithmetic training:
1. Let the students work out the results first
2. Ask the students to talk about their own oral calculation methods, and give timely affirmation to good oral calculation methods. Sometimes, for the same topic, ask the students if they have other oral calculation methods< Finally, the teacher explained and emphasized the oral arithmetic< 4. Be good at adopting simple algorithm: some mathematical calculation questions have obvious characteristics of form and number structure, which are good opportunities for us to use simple algorithm. Through a certain number of simple calculation exercises, not only students' observation ability and analysis ability are improved, but also students' mathematical calculation skills and quickness are graally strengthened, It also brings students happy spiritual enjoyment, which is of great benefit to stimulate students' interest in learning mathematics.