Now it's also a virtual currency for graphics card mining
Some new virtual digital coins can be mined by computer, such as eth, Zec, Monroe, XRB, etc
because the whole network computing power required by this kind of token is not high, the probability of hash collision of the computing power of personal computer can find out the answer in a short time, so as to obtain the block reward. However, this kind of token generally has little value, or has no high risk, so it doesn't mean much
extended data:
mining risk:
1. Electricity charge:
to make the graphics card full load for a long time, the power consumption will be quite high, and the electricity charge 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
2. Hardware expenditure:
mining is actually a competition of performance and equipment. Some mining machines are composed of more such graphics card arrays. With dozens or even hundreds of graphics cards, the cost of hardware and other costs is very high, and mining has a considerable expenditure
in addition to the display card burning machines, some ASIC (application specific integrated circuit) professional mining machines are also put into the battlefield. ASIC is specially designed for hash operation, and the computing power is quite strong. Moreover, because their power consumption is far lower than that of the display card, they are easier to form scale, and the power cost is also lower. It is difficult for single chip display to compete with these mining machines, This kind of machine costs more
3. Currency security:
the withdrawal of bitcoin requires hundreds of keys, and most people will record this long string of numbers on the computer, but the frequent problems such as hard disk damage will make the key permanently lost, which also leads to the loss of bitcoin
4. System risk:
system risk is very common in bitcoin, and the most common one is bifurcation. Bifurcation will lead to a drop in currency price and a sharp drop in mining income
however, many cases show that the forking will benefit the miners, and the forked competitive currency also needs the miners' computing power to complete the minting and trading process. In order to win more miners, the competitive currency will provide more block rewards and handling charges to attract miners. Risk makes miners
now, of course, there are still people mining. There are about 21 million bitcoins in total. At present, there are about 13 million bitcoins in the world, and there are 8 million left. However, now mining is basically large-scale integrated mining machine, and the era of graphics card mining ended at the end of last year, because with more and more bitcoin being g out, the difficulty of mining is increasing automatically, and large-scale mining equipment is manufactured in batches, resulting in that the computing power of graphics card can no longer generate positive benefits
for example, the current mining difficulty is 16818461371, and the computing power of a better graphics card such as ati5970 is 800mhash / s. It takes 2863 years to dig out a bitcoin. The computing power of the large-scale integrated miner can reach 2tash / s, and it will take more than a year to dig out a bitcoin. There are many manufacturers procing this kind of large mining machine all over the world, and the computing power is still improving. Only this kind of equipment has been put into use for more than 100000.
it's up to the family to dig. Large can be prepared on a host of 6 or 8 graphics cards, need rx570 (580), or gtx10610170. Then in the preparation of 20 hosts or more can make money. At least 10
first of all, mining is the main way to obtain bitcoin, but the current threshold of mining is relatively high. If you choose to mine by yourself, first you need to understand certain technology, then download the bitcoin client and mine by yourself according to the online bitcoin mining tutorial
however, in theory, bitcoin can still be mined with computers or graphics cards. However, e to the development of mining instry in recent years, the whole network computing power of bitcoin is extremely terrible (more than supercomputers), so if you want to mine with computers or graphics cards, you can't find bitcoin, If you want to dig bitcoin, you still need to buy mining machines. Now the better mainstream mining machines in the market have to be tens of thousands. Of course, there are cheap second-hand mining machines, but these second-hand mining machines are all obsolete ones, and the electricity cost of mining is relatively high
in addition to the second way of direct purchase, the digital currency exchange is a special place for bitcoin trading. If you want to own a bitcoin, you can buy it directly with money. However, it should be noted that there are many digital currency exchanges in the market at present. Many small exchanges are specialized in cutting users and eating customer losses for a living. Therefore, when choosing an exchange, it is better to focus on the head exchange. For example, Hufu, one of the head exchanges in China, I have been using it for nearly two years, and it is very stable and safe.
I have done a similar paper assignment before, which is about audio-visual procts. I went to a lot of places to ask questions, but they either didn't want to answer or gave me very general data
it used to be better, but now bitcoin is no longer what you want to dig.
many people have begun to sell mining machines
suggestions for the use of mechanical watch:
1. Watch with manual winding movement should be wound at the same time every day as far as possible, so that the watch can operate with enough energy in the next 24 hours
2. The energy of the watch with automatic winding movement comes from the movement of the wearer's arm, so it is not necessary to manually wind the watch under normal wearing conditions. Only when the wearer's movement is not enough to add enough energy to the spring, the watch can be manually wound up, and the crown rotation is controlled within 20 turns
3. For an automatic winding watch that has not been worn for more than 40 hours, turn the crown for 20 turns to start the drive system of the movement again
4. In order to prevent moisture from seeping into the watch case and keep the watch waterproof, please ensure that the crown is locked at all times