Utilization ratio of computing power
In fact, the coins that can be g up every day are different. When L3 + first came out, it was able to dig one Wright coin every day. Now the computing power of the whole network has been greatly improved, and about 0.54 yuan can be g every day. It mainly depends on the comparison between your computing power and that of the whole network
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 server2. 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
Output value: according to the calculation formula of bitcoin output, almost every four years, the output will be halved, and finally reach the extreme value of 21 million. At this time, there will be a substantial appreciation. This kind of currency without the control of the central bank, compared with the real currency of quantitative easing, will continue to appreciate. By 2013, about 11 million bitcoins had been proced
extended data:
1. Ant mining machine is the first cryptocurrency mining machine brand in the world, with a market share of about 70%. The mining machine is developed by bitmainland and has a patent in mainland China. At the beginning, ant miner had only bitcoin miner. Later, its business expanded to other cryptocurrencies, such as Ethereum, dascoin, Leyte, Monroe, etc
Ant miner adopts ASIC chip designed by bitcontinental, which is proced by TSMC. All chips are made of BM prefix. Each miner has three to four circuit boards, and there are dozens of chips on the circuit board. Therefore, each miner can only be used to mine one or more cryptocurrencies using the same algorithm3. Ant mining machine needs special mining software, and can not use third-party software. In addition, because of its high power, the ant miner also needs to be used with a special fire ox
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
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) strong>
About
} are black sesame CEO and coo Liu Weihong
black sesame CEO. Previously, he was a member of the founding team of omnivision, a global vision chip leader. He has worked in Silicon Valley chip instry for more than 20 years and has rich experience and technology accumulation in image processing chip and software algorithm
CTO Qi Zheng is the main design member of Intel Pentium II chip, CSO Zeng Daibing is the chief engineer of ZTE microelectronics, and coo Liu Weihong was the president of chassis and control system division of Bosch China ADAS
because of its strong R & D team, heima, a start-up company, can make the ADAS chip huashan-1 A500 within three years and launch it in mass proction. This year, it will launch huashan-2 a1000 chip and launch the fad automatic driving platform
since the beginning of this year, if new cars are not equipped with L1 / L2 automatic driving, they are "embarrassed to sell", the popularity of automatic driving is rapidly increasing, and the higher level of L3 or even L4 automatic driving is on the eve of mass proction, and the demand for automatic driving chips and computing platform solutions in the instry is explosive growth. The market scale of autopilot chips alone is expected to reach trillion US dollars, becoming the largest single market in the semiconctor instry
Therefore, it is right time for fad to enter the automatic driving marketin August this year, FAW Intelligent Network Development Institute reached a technical cooperation agreement with heima. FAW Intelligent Network Development Institute will start the development of intelligent driving platform based on huashan-2 a1000 to meet the demand of subsequent mass proction models. The two sides will jointly promote the application of artificial intelligence technology in the automotive instry and accelerate the instrialization of domestic intelligent driving chips
in addition, heima has signed a number of fad fixed-point models, and it is expected that there will be models equipped with fad automatic driving platform on the market next year. In addition, many enterprises at home and abroad have begun to test fad automatic driving platform, and the test vehicles have been on the road
the great success of black sesame in automatic driving chip and domain controller makes instry research institutions begin to pay attention to this start-up company which has just been established for more than four years. In April this year, cbinsights, one of the strongest think tanks in Silicon Valley, released the list of Chinese chip design enterprises. Black sesame was listed in the field of vehicle chip, becoming one of the top 65 Chinese chip design enterprises
in July this year, black sesame Huashan No.2 a1000 chip also appeared in the world artificial intelligence conference, together with pingtouge, Yitu, Cambrian and other high-end artificial intelligence chips
it can be said that after more than four years of development, black sesame has become the world's leading autopilot chip design company, and even has the ability to compete with the eldest brother in the chip instry. At the same time, the rapid progress of black sesame also promotes the domestic automatic driving chip design to a new level
in the conversation with the two founders, they also revealed a colorful egg. Next year, hei mahjong will release a chip with stronger performance. At that time, the highest computing power of fad automatic driving platform equipped with this chip is expected to exceed 1000tops, and its computing power can be fully automatic driving
this article comes from the author of car home, which does not represent the standpoint of car home
then, measure the power generation of the fan in a year
then, measure how much wind the fan generates so much electricity and uses,
I think you should know what to do with the rest~
in short,
quantum computer is to replace the original ordinary bits with quantum bits
from the physical level, quantum computers are not based on ordinary transistors, but use spin direction controlled particles (such as proton nuclear magnetic resonance) or polarization direction controlled photons (mostly used in school experiments) as carriers. Of course, in theory, any multi-level system can be used as the carrier of qubits
from the perspective of calculation principle, the input state of quantum computer can be either discrete eigenstate (like traditional computer) or superposition state (probability superposition of several different states). The operation of information is extended from traditional logic operations such as "and", "or", "and" to any unitary transformation, and the output can also be superposition state or an eigenstate. So quantum computer will be more flexible and can realize parallel computing< If you want to explain the details, it's a bit troublesome. I'll give you some key words to look up:
1. Quantum state
2. Quantum superposition
3, qubit
4, unitary transformation
5, quantum logic
6, quantum gate (corresponding to traditional logic gate, In fact, it is some special positive transformation)
7, quantum algorithm, quantum algorithm (of course, quantum computer can also realize the traditional algorithm)
8, and then on how to realize from the physical level, it is best to start with quantum optics, because polarized photons are the simplest
in depth:
ordinary digital computers run on binary systems of 0 and 1, which are called "bits". But quantum computers are far more powerful. They can operate on qubits and can compute values between 0 and 1. Suppose an atom placed in a magnetic field rotates like a top, so its axis of rotation can point up or down. Common sense tells us that the rotation of atoms can be up or down, but not all at the same time. But in the strange world of quantum, the atom is described as the sum of two states, an upward turning atom and a downward turning atom. In the wonderful world of quantum, every object is described by the sum of all the incredible states
imagine a string of atoms arranged in a magnetic field and rotating in the same way. If a laser beam is shining on the top of the atoms, it will jump down the group of atoms and quickly flip the rotation axis of some atoms. By measuring the difference between the incoming and outgoing laser beams, we have completed a complex quantum "calculation", involving a lot of rapid spin movement
from the perspective of mathematical abstraction, quantum computer performs the calculation with set as the basic operation unit, while ordinary computer performs the calculation with element as the basic operation unit (if there is only one element in the set, quantum calculation is no different from classical calculation)
take the function y = f (x), X ∈ a as an example. The input parameter of quantum computation is the domain a, and the output domain B is obtained in one step, that is, B = f (a); The input parameter of classical calculation is x, and the output value y is obtained. The range B can only be obtained by multiple calculations, that is, y = f (x), X ∈ a, y ∈ B
quantum computer has a problem to be solved, that is, the output range B can only randomly take out a valid value y. Although the number of elements in output set B is much less than that in input set a by directing the unwanted output to an empty set, it still needs to be calculated many times when all the valid values need to be taken out.
The problems are as follows:
1, CPU aging
the system software of the computer has been continuously upgraded, and win has gone from 32-bit to 64 bit. As a result, the requirement of CPU is higher and higher. CPU aging, resulting in a high occupancy rate of the computer, can not bring upgraded software
solution: replace the computer with a new one or upgrade the CPU on the motherboard
2, too many disk fragments
when the computer software is installed or unloaded, when the files are installed and unloaded, the data arrangement in the hard disk will be very scattered or intermittent, which makes the computer slow down in the search, resulting in a lot of use of CPU
solution: daily clean up the garbage of the system, and then clean up the disk fragments
3. Too many startup software programs
the computer starts multiple software at the same time, such as opening dozens of browser windows at a time. Every browser window will take up a part of CPU resources
solution: at the same time, do not open too many software programs, and cut off unused software processes in time
precautions for daily use of computers
1. Do not use computers on bedding
manufacturers of notebook computers use fans, cooling cts, large cooling fins and cooling holes to rece the high temperature when using computers. At the same time, in order to save power and avoid noise, the fan of notebook computer does not run all the time, but will start when the CPU reaches a certain temperature
if the laptop is placed on soft objects (such as beds and sofas), it may block the cooling holes, and then affect the cooling effect of the computer, and then it may rece the operation efficiency of the computer, or even cause a crash
2. Don't use your fingers to click on the screen.
if you click on the LCD of notebook with fingernails or hard objects for a long time, the special coating on it will be damaged, which will have a great impact on the display effect of computer screen. And when using the touchpad, be sure to keep your hands clean to avoid cursor running
when you accidentally stain the computer surface, you can wet a corner of the dry cloth and wipe it lightly. At the same time, you can't use sharp objects to write on the touch panel, and you can't use them under heavy pressure, so as not to damage the computer
3. Don't turn on or off the computer at will
when using the computer, we should keep the correct habit of switching on and off, because the startup of the computer has an important influence on its service life. Because the computer in just power on or power off moment, will bring greater electric shock, this will send interference signal to the host, and then lead to the host can not start or abnormal. Therefore, when the computer starts up, it should first power on the external equipment, and then power on the computer host
4. Do not start the application immediately
when the computer enters the desktop, you should wait about 30 seconds before running various programs. Because when the computer enters the desktop, there are many background programs to start and execute, and the processor load is the largest at this time. Therefore, if users run other desktop programs, it will increase the burden of the processor, and the running speed will become slower, or even no response, which is just the opposite< Do not shut down and restart immediately
short time frequent pulse voltage impact will damage the computer's integrated circuit, will bring serious damage to the keyboard. If the disk (the medium carrying the data storage in the hard disk) does not stop and restart, it is equivalent to re accelerating the hard disk in the deceleration state. If you do this often, the impact is likely to make your hard disk & quot; Wave your sleeve, don't take away a cloud< br />
