Calculation force of CPU mining machine

1.

mining has been successful, a total of one equipment (CPU mining, 4-core bar), computing power: 12.75 khash / S (generally abbreviated as KH / s)
KH / S is very rare, so is MH / s; Now the more common are GH / s, th / s, pH / s. The conversion rate is about 1p = 1000t = 1000g = 1000m = 1000K

now the basic unit is GH / s, and several hundred g mining machines are very common

[bitcoin mining machine]

bitcoin mining machine is a computer used to earn bitcoin. This kind of computer generally has professional mining chips, and works in the way of burning graphics card, which consumes a lot of power. It is one of the ways to get bitcoin that users download software from personal computer and then run specific algorithm to get corresponding bitcoin after communicating with remote server

the popular digital currencies in 2013 are bitcoin, Leyte coin, zeta coin, pennies (Internet), invisible gold bar, red coin, pole coin, barbecue coin and prime currency. At present, hundreds of digital currencies are issued all over the world

2.

Bitcoin mining machine is a kind of computer used to earn bitcoin. This kind of computer generally has professional mining chips and works in the way of burning graphics card, which consumes a lot of power. It is one of the ways to get bitcoin that users download software from personal computer and then run specific algorithm to get corresponding bitcoin after communicating with remote server

mining is actually a competition of performance and equipment, and a competition of computing power among miners. Miners with more computing power are more likely to dig bitcoin. With the increase of computing power in the whole network, it is more and more difficult to dig bits with traditional devices (CPU, GPU). People have developed chips specially used for mining. Chip is the core part of mining machine. The process of chip operation will proce a lot of heat, in order to cool down, bitcoin miner is generally equipped with heat sink and fan

< H2 > extended materials:

bitcoin is a kind of virtual currency. Bitcoin mining system is the process of carrying out mathematical operation for bitcoin network through computer hardware. Miners who provide services can get a reward, because the network reward is calculated according to the tasks completed by miners, so the competition for mining is very fierce

bitcoin mining started with low-cost hardware such as CPU or GPU, but with the popularity of bitcoin, the mining process has changed greatly. Nowadays, the mining activities are transferred to the field programmable gate array, and the hash speed can be achieved through optimization. The mining efficiency of this mode is very high

3.

You can't dig in a day. It takes 2000 years

the global unified computing difficulty of bitcoin is 2621404453 (expected to change in two days). It takes more than 2000 years for a 2.5GHz CPU to work out a bitcoin

in order to make the graphics card fully loaded for a long time, the power consumption will be quite high, and the electricity bill will be higher and higher. Many professional mines at home and abroad are operated in areas with extremely low electricity charges, such as hydropower stations, while more users can only mine at home or in ordinary mines, so the electricity charges are not cheap. Even in a certain residential area in Yunnan, there was a case of crazy mining, which led to a large area trip of the residential area, and the transformer was burned

extended data:

bitcoin network generates new bitcoin through "mining". In essence, the so-called "mining" is to use computers to solve a complex mathematical problem to ensure the consistency of bitcoin network distributed accounting system

bitcoin network will automatically adjust the difficulty of mathematical problems, so that the whole network can get a qualified answer about every 10 minutes. Then bitcoin network will generate a certain amount of bitcoin as block reward to reward the person who gets the answer

when bitcoin was born in 2009, block rewards were 50 bitcoins. Ten minutes after its birth, the first 50 bitcoins were generated, and the total amount of money at this time is 50. Then bitcoin grew at a rate of about 50 every 10 minutes. When the total amount reaches 10.5 million (50% of 21 million), the block reward will be halved to 25

when the total amount reaches 15.75 million (5.25 million new output, i.e. 50% of 1050), the block reward will be further halved to 12.5. The monetary system used to have no more than 10.5 million in four years, after which the total number will be permanently limited to about 21 million

4. Theoretically, both CPU and GPU operations can be mined
in the early days of the advent of a virtual currency, it was relatively easy to mine. Maybe a CPU with strong enough performance could easily mine the currency
as it becomes more and more difficult to dig money, the CPU has already been unable to cope with the huge computing power required for mining, and the terrible performance of the large-scale stream processor parallel computing in the GPU core of the graphics card is more suitable for mining this kind of parallel computing
therefore, today's professional mining machinery has become the world of GPU and professional chips, in which CPU plays the most coordinating role. Moreover, with the increase of mining difficulty, the demand for the display memory capacity of the mine card is higher and higher. A few years ago, 2-3gb was enough, but now 6GB may not be enough.

5. In other words, the task of BTC only needs some specific transistors to execute

the CPU is used to perform mining tasks. Because the CPU needs many transistors to execute various instructions, many transistors are idle in a cycle. The speed is slow and normal

In order to enhance the ability of displaying images, the graphics card saves many transistors which have nothing to do with the display function, so the graphics card can only display pictures, but it is much faster than the CPU in the task of displaying pictures. BTC needs to perform the same tasks as the graphics card, so the mining of the graphics card is faster than the CPU, So a card is more suitable for mining

6. Now the CPU can't dig. With the increase of computing power in the whole network, personal computers can't run at all.

7. Hello

the graphics card can be used for mining

if you have money, you can go to Titan array with high efficiency. If you don't have money, you can use 7990 290x array for more than 1000 yuan

computing power is the ability of bitcoin miner to proce bitcoin and hash collisions per second. The unit conversion relation of calculation force is 1000g = 1t, 1000t = 1p. Now the total calculation force of the whole network is about 2000p. In the world of bitcoin, the total proction in a day is about 1800. Mining can be abstractly understood as the 2000p computing power fighting for 1800 bitcoin proction rights every day. The rise and fall trend of computing power is positively related to the rise and fall of currency price, and negatively related to the rise and fall of mining machinery price.

8. CPU miner, miner must be CPU currency, not enough electricity CPU. Can we use CPU miner to dig bitcoin? It's possible to dig. It's estimated that it will take 100 years to recover

9. [usually, we should protect our computer and give some suggestions]
1. It is necessary to install anti-virus software, update the virus library in time, install firewall (anti Trojan horse, hacker attack, etc.), kill virus regularly, and maintain the security of computer operation
it is recommended that the owner of the building can install Tencent computer manager, which is a free professional security software with two in one anti-virus Management (only need to download one ), small memory, good anti-virus, good protection, and no false alarm and killing. It has a world-class anti-virus software embedded anti-virus engine, such as cloud killing engine, anti-virus engine, Jinshan cloud killing engine, Avira killing engine, xiaohongsan and killing repair engine
software upgrade, vulnerability repair and garbage cleaning are automatically and regularly set, which is necessary for lazy people
2; Open Tencent computer manager toolbox vulnerability repair
3. Don't go to some unknown websites or download things casually
4. You should also be on guard against portable storage devices (such as USB flash disk, where viruses are rampant recently)
5. Don't go to unknown websites or receive strange e-mails. After downloading the compressed package file, scan the virus first
6. Close unnecessary ports
7. If you have time and energy, learn some common computer skills and knowledge

finally, I would like to say that if you are very careful but still poisoned, you can't help it It's a good choice to backup the system with ghost.)

10. First of all, we analyze the development of China's economy from the perspective of GDP. The GDP is national purchase + government purchase + investment + export import. Since the reform and opening up, China's GDP growth has been mainly driven by investment and export, and the proportion of export stations is larger. In recent years, China's frequent investment and construction of large-scale projects mainly rely on government purchase as another driving force for development. Due to the deformity and bias of domestic instrial structure, national purchase has not been the main economic driving force. China is the country with the highest degree of foreign dependence in the world (the ratio of international trade deficit to national income). According to the textbook, it accounts for 70% (I think it should be only 40% at most), which is nearly twice as high as Russia, the second highest country. Therefore, e to the high degree of foreign dependence, the market main body of made in China is not at home, It has caused the deformity of the national instrial chain Most of the exported nails, steel, can't encourage the public to buy them home, and can't eat them In order to get rid of this dilemma, the government has been calling for the expansion of domestic demand, because the annual trade deficit makes China hoard too much foreign exchange... Ordinary people can't use US dollars to shop in their daily life at home, so the money can only be exchanged by the state treasury in the end.) coupled with the foreign "mping" lawsuits against China and the emergence of trade barriers, the weakness of excessive dependence on foreign countries has begun to hurt China's economy. Economic transformation is not easy. First of all, you have to make rational use of the surplus proction. At this time, the most useful real estate appears, and an investment target that can pull more than 30 instries by itself appears. In addition, land development and auction have become a large part of local government revenue, Therefore, the state vigorously supports (there are many forced demolition problems). But with the passage of time, the overheating of real estate also involves financial instability. When real estate is no longer a necessity but a speculative investment, it will eventually become pure concrete rather than stable repayment ability (whether it is building or buying a house, most businesses and indivials are through loans or mortgages), China's "subprime" crisis began to break out. In fact, according to the theory of western economics, it may be a miracle that China's real estate did not cause China's economy to collapse now, but the state's macro-control and slow weakening of real estate development have indeed played an incomparable role. With the development of economy and the improvement of employment rate in our country, people are happy to see that our GDP is developing at a high speed of 10% every year, and we are jubilant to become the second largest economy in the world. At the same time, we have encountered three headache problems
first, China has become the world's creditor. The foreign exchange reserves of 200 billion US dollars mean that China has more US dollar cash in its treasury than the United States. When its economy goes wrong, it will reach out to China and borrow it. It will return it, but it is just fresh money directly from the banknote printing machine. So what's the difference between the fresh banknotes and the old banknotes? The difference lies in their depreciation and sharp decline in purchasing power. We can think that they originally had 100 cattle, issued 1 million US dollars, and China had 100000 in its pocket. At this time, 10000 US dollars is a cow; Later, the United States and China borrowed the 100000, and when they returned it, they printed another 100000 US dollars to China, but only 11000 US dollars could buy a cow at that time, so they cheated us... Then we can't borrow it. Your loss in China is even more miserable. If I don't lose a dollar against your RMB, you will lose 200 billion RMB. Can you afford to lose? So China had to help him. In this way, China should be very passive. But last year, our leaders began to use US dollars to inhale a lot of gold, turning piles of waste paper into lovely, gorgeous and golden gold. Although we have got rid of the fixed exchange rate system, the stability of the value of gold is far higher than that of paper money. Therefore, comrades, Get some gold before we run out of dollars... At least I made a small profit from my gold
Second, the rapid economic development and high employment rate bring about high inflation rate. With the increase of inflation rate and CPI, more and more people work and have a stable income. Moreover, the income graally increases, and the rise of prices can not be avoided. I still remember that when I was in junior high school, a finished noodle at my home only sold for 3.5 yuan. This time I returned home and asked for 6 yuan. God... Compared with the rise of the exchange rate, it's a good choice for everyone to study abroad. Therefore, how to control the priceless rise and stabilize the inflation is one of the main problems of China's economy in the next step, and this environment also urges us to prepare to invest abroad (we can also be foreign enterprises in foreign countries). Of course, it is not necessarily the European and American powers, but the relatively backward but resource rich small countries, such as Myanmar, Laos, Cambodia, Vietnam and other Southeast Asian countries, whose economic situation and resource utilization rate are very similar to those of China in the 1980s and 1990s, are also encouraging foreign investment. Our great motherland saw such an opportunity, so it vigorously developed the Southwest (this is related to the third issue), established bridgeheads, laid the Pan Asian Railway and so on, and achieved initial results, such as vegetable oil exchange in Yunnan and Thailand, China and Thailand free of fruit and vegetable tariffs and so on... Because I'm here
thirdly, the gap between the rich and the poor is too large, the utilization rate of resources is low, the utilization of resources is unreasonable, etc.
the rapid development makes some people richer and some people may be poorer. To some extent, we have no conscience can be called the law of the jungle, but we can also have a conscience to say that many rich people are not benevolent. This seems to have nothing to do with economy, but it is closely related to social stability and political strength. If these two points are gone, what we can consider is to escape from the country or resell arms to make a fortune. The first to become rich should be those engaged in import and export (both legal and illegal), then those engaged in mining, and those engaged in real estate recently. Here we want to see the times and the conditions for them to become rich. Import and export have just started the reform and opening up. Whether it's the low price of Chinese made goods or the curiosity of Chinese people about foreign goods, these people almost became the first to get rich at that time by using the price difference in the middle. They have a condition to get rich. They have a place to do import and export for you. For bulk logistics, trains can't go directly, Airplanes are too expensive. They can only be transported by sea... The coastal people laughed (so that up to now, some people think that apart from the coastal areas, most of the inland areas are poor, and my mother-in-law should be counted as one...), Later, foreigners found that your mine was better. All right, those who found the mine laughed. Overnight, they changed from farmers to mine owners. Some of them could not adapt to this gap, making mine owners a derogatory term today... For them, wealth and their cultural quality may not be in direct proportion, which leads to some very rampant rich second generation XX. Mine boss mine boss in the final analysis, you have to find your own mine, or you are likely to be a miner... Therefore, it is necessary to have regional characteristics. Finally, when it comes to real estate, it's finally a bit balanced, at least not regional, but you still need to have "resources". Although some of their black hearted people are still poor, from the perspective of economics, I would like to pay tribute to them, because economy is the rational use of all resources to maximize, they not only use the funds, technology, human resources, but also "contacts" resources, Finally, it also affected the economic situation and financial trend of the whole country. A few people own resources, and they don't share all the resources with everyone. Therefore, the gap between the rich and the poor is graally widening, causing a series of problems. In Thailand, the rich people donate money to temples every month, buy things to temples, and then distribute them to the poor and the needy. In addition, temples actively build schools and really achieve compulsory ecation (I was a teacher in Temple schools), I hope the rich in our country can do the same. It's not economics, it's sociology, but I'm still itching to say, remember that the founding of the people's Republic of China was e to grandfather Mao's fight against local tyrants and division of land, be careful of his reincarnation
China's national strength is becoming stronger and stronger, and the strong economy has also brought us a happy life, although the economic system still has many disadvantages (such as buying bonds, not to mention making profits, even losing the principal... But I think with the development of the times, China will only become more and more powerful (if we don't become the second Song Dynasty in history, and find the time to beat those Filipinos who say we Chinese are small eyes every day). God bless China
I have little talent and little learning. I dare to talk about China's economy. If there is something wrong, please correct it and communicate with my friends. If the landlord adopts my question, I would be very grateful