How can graphics card mine
mining, in fact, is a problem-solving process. First, we work out a formula with many answers, and then the dealer releases a random answer every other period of time. An answer is the prototype of a virtual coin. We can see who can calculate the answer at this time, and then this person or these people can divide the virtual coin. When the result comes out, we can find the answer, virtual currency is attached with information such as the computer information and problem-solving time of the tester, so that the virtual currency can be "materialized", that is, it has traceability and uniqueness attributes. At this time, the virtual currency is officially g out
using the graphics card is because the computing method of the graphics card is different from that of the CPU. The CPU focuses on logic computing. The graphics card is simple computing, and mining (that is, solving problems) just needs simple computing power. Therefore, mining with the graphics card
bitcoin miner is the equipment for mining bitcoin. The mining equipment can be ordinary computer or USB miner, It can also be a professional ASIC miner
It is true that ordinary computer CPU can mine bitcoin, but because bitcoin mining has formed a huge instry all over the world, it is difficult for indivials to mine bitcoin with ordinary computers. You need to buy expensive and professional bitcoin
ASIC mining machine
and join the bitcoin miners organization to dig bitcoin, that is, to join a mining pool for mining
First of all, CPU and GPU are designed differently for different missions in the computer:1. CPU is mainly optimized for serial instructions, while GPU is optimized for large-scale parallel computing
Modern multi-core CPUs aim at instruction set parallelism (ILP) and task parallelism (TLP), while GPUs aim at data parallelism (DLP)3. GPU often has a larger bandwidth of memory, that is, the so-called video memory, so it will also have good performance in high throughput applications
Through a specific program and algorithm, using the computer graphics card calculation rate, a large number of calculations are carried out in the selected mine pool to generate data packets
The first step in setting up mining equipment is to choose the right hardware. This article will focus on GPU (graphics card) mining, of course, you can use CPU or ASIC equipment mining. Amd graphics card architecture is very beneficial to mining. NVIDIA card is not suitable for mining because of its low hash rate. The best NVIDIA graphics cards are less than 0.5 megahash. Notebook Hardware mining is not as good as NVIDIA card, which is a bad option for mining. You need to use a desktop system for mining. There is a desktop system to ensure adequate cooling of the hardware
the graphics card or card needs to be able to match the motherboard, and the power supply must have enough PCI-E connectors. Before determining the graphics card, pay attention to these. In order for the system to cool down sufficiently, you need to remove the cover of the chassis in order to get better heat dissipation. This is what people call "open air rig.". If you can aim the system at a fan or air conditioner, you can make the device cooler when it's running, thus extending its life and keeping it efficient
you need to buy multiple PCI e motherboards, one motherboard needs 6 cards, the power supply needs to be rated above 1000W, the CPU has enough al cores, the memory is 4G, and the graphics card needs gtx1060 or AMD rx470 / 570 or above a card
just download the mining software to start
however, if you calculate the cost, one card needs 3000, six cards need 18000 or more, at least 500 power supplies, CPU 300, memory 300, motherboard and PCI extension cable need about 800, and one monitor. In this way, a simple mining machine will cost more than 20000, and the average power consumption of a graphics card is 200W (n card level, a card 250W). Six of them are 1200W. The whole machine has this power. One hour is 1.2 kwh, and one day is full load. The electricity charge of 16x1.2x0.6 + 8x1.2x0.3 = at least 17.85. Although using a card is more efficient, it costs more electricity
a miner can earn 100-200 yuan a day. How long will it take to recover the cost? Can the value of money still be at this level at that time?
therefore, professional mines are built on the riverside and riverside, using water to generate electricity
Mining relies on GPU stream processor to carry out full load operation ~
and generally, the number of stream processors of card a at the same level is three times that of card n (this does not mean that card n is slag ~ just because they work in different ways
I will not explain in detail here), so the mining efficiency of card a is about three times that of card n
therefore, n card is not suitable for mining alone ~
(the money earned by N card is not enough for electricity and video card consumption ~)
Mini excavators with the weight of less than 6 tons, small excavators with the weight of 6-15 tons, medium excavators with the weight of 15-30 tons, large excavators with the weight of 30-150 tons, and super large excavators with the weight of more than 150 tons. Sany Heavy Instry has more than 200 tons of super large hydraulic excavator
the three most important parameters of excavator are operating weight (mass), engine power and bucket capacity. Common excavator structures include power device, working device, slewing mechanism, control mechanism, transmission mechanism, walking mechanism and auxiliary facilities. The transmission mechanism transmits the power of the engine to the hydraulic motor, hydraulic cylinder and other executive elements through the hydraulic pump, and promotes the action of the working device, so as to complete various operations
the materials excavated by excavators are mainly soil, coal, silt and soil and rock after pre loosening. From the development of construction machinery in recent years, the development of excavator is relatively fast, excavator has become one of the most important construction machinery in engineering construction
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there are two common excavator driving modes: internal combustion engine driven excavator and electric drive excavator. Among them, electric excavator is mainly used in plateau hypoxia and underground mine and some other flammable and explosive places
according to the different scale, excavators can be divided into large excavators, medium excavators and small excavators
according to the different walking modes, excavators can be divided into Crawler excavators and wheel excavators
According to different transmission modes, excavators can be divided into hydraulic excavators and mechanical excavators. Mechanical excavators are mainly used in some large mines According to the use, excavators can be divided into general excavators, mining excavators, marine excavators, special excavators and other different categories According to the bucket, excavators can be divided into forward excavator, backhoe excavator, dragline excavator and grab excavator. The front shovel excavator is mostly used to excavate the materials above the surface, and the backhoe excavator is mostly used to excavate the materials below the surfaceThis is a three digit segmentation method, because western countries are used to add a comma every three digits to separate money, so as to avoid too many digits to see its value
three digit segmentation means that when a number is represented, three numbers are used as a paragraph, separated by commas or spaces. For example, 752259412 can be expressed as "752259412" or "752 259 412"
this is very convenient in English speaking countries, because in English speaking countries, the first three places are a thousand, the second three places are a million, and the third three places are a billion
and this comma is the thousand separator. According to the Western custom, people add a symbol to the number, so as not to see its value because there are too many digits. It is mainly aimed at financial professionals, such as professional accountants, fund managers, stock investors, etc. some professional people can know the specific amount at a glance through the thousand separator
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the history of Arabic numerals
around 500 A.D., with the rise and development of economy, culture and Buddhism, mathematics in Punjab, northwest of Indian subcontinent, has been in a leading position, originated in India
the astronomer abelhait has made a new breakthrough in simplifying numbers: he records numbers in one lattice. If there is a symbol in the first lattice, such as a dot representing 1, then the same dot in the second lattice represents 10, and the dot in the third lattice represents 100
In this way, not only the number symbols themselves, but also the order of their positions are of great significance. Indian scholars have also introced the symbol as zero. It can be said that these symbols and expressions are the forefathers of today's Arabic numerals In 700 A.D., the Arabs united under Islam conquered the surrounding nations and established the great Saracen empire from India in the east to Spain in the West. Later, the Islamic Empire was divided into two countries, the East and the Westbecause all the kings of the two countries reward culture and art, the capitals of the two countries are very prosperous, especially the eastern capital, Bagdad, where Greek culture from the West and Indian culture from the east come together. Arabs understand and digest the two cultures, thus creating a unique Arab culture
About 700 years ago, the Arabs conquered Punjab, and they were surprised to find that the mathematics of the conquered area was more advanced than them. How can we move these advanced mathematics to Arabia? Later, the Arabs introced this number to Spain. In the 10th century, it was spread to other European countries by Pope Gerber oriyak Around 1200 A.D., European scholars formally adopted these symbols and systems. By the 13th century, under the initiative of the mathematician Fibonacci in Pisa, Italy, ordinary Europeans also began to use Arabic numerals, which was quite common in the 15th centurythe shapes of Arabic numerals at that time were not exactly the same as those of Modern Arabic numerals, but they were relatively close. Many mathematicians spent a lot of effort to make them become the writing style of today's 1, 2, 3, 4, 5, 6, 7, 8, 9 and 0
Arabic numerals originated in India, but they spread to all directions through the Arabs, which is why they were later called Arabic numerals