5W Ethereum
unlike all currencies, bitcoin does not rely on a specific currency institution to issue. It is generated by a large number of calculations based on a specific algorithm. Bitcoin economy uses a distributed database composed of many nodes in the whole P2P network to confirm and record all transactions, and uses cryptography design to ensure the security of all aspects of currency circulation. The decentralized nature and algorithm of P2P can ensure that it is impossible to artificially manipulate the value of bitcoin through mass proction. The design based on cryptography can make bitcoin only be transferred or paid by the real owner. This also ensures the anonymity of money ownership and circulation transactions. The biggest difference between bitcoin and other virtual currencies is that the total amount of bitcoin is very limited and it has a strong scarcity
according to the notice on preventing the financing risk of token issuance, there is no approved digital currency trading platform in China. According to China's digital currency regulatory framework, investors have the freedom to participate in digital currency transactions at their own risk
warm tips: the above information is for reference only. Before investing, it is recommended that you first understand the risks existing in the project, and understand the investors, investment institutions, chain activity and other information of the project, rather than blindly investing or mistakenly entering the capital market. Investment is risky, so we should be cautious when entering the market
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when building bitcoin, Nakamoto wants bitcoin to be a decentralized currency, not only for use and trading, but also for mining. But it backfired. With the increasing value of cryptocurrency such as bitcoin, mining has become an instry. The competition is more and more fierce, and the pursuit of mining computing power is higher and higher. Therefore, from ordinary computer mining, ASIC mining machine and GPU mining machine have evolved
the algorithm of ASIC mining machine is almost sha256, while the algorithm of GPU mining is different. For example, the algorithm of BTG is equihash, and the algorithm of BCD is optimized x13. Although it is not absolute, it can be simply considered that the currency of sha256 algorithm is generally mined by ASIC mining machine. Other algorithms are basically using GPU miner. There are also exceptions. Scrypt's Leyte coin used to be mined by GPU miner, but later scrypt's algorithm was also conquered by ASIC chips, such as ant miner L3 +, which is the ASIC miner used to dig Leyte coin
ASIC miner refers to the miner that uses ASIC chip as the core of computing power. ASIC is the abbreviation of application specific integrated circuit, which is a kind of electronic circuit (chip) specially designed for a specific purpose. Some mining machinery factories have designed ASIC chips specially for computing the sha256 algorithm of bitcoin, and the mining machinery using them is ASIC mining machinery. Because ASIC chip is only built for specific computing, its efficiency can be much higher than that of CPU. For example, the current mainstream ant miner S9 is ASIC miner, which uses 189 ASIC chips, the computing power reaches 13.5th/s, and the power consumption is only 1350W. As a comparison, the computing power of gtx1080ti, the flagship computer graphics card, will not exceed 60mh / s even if it is optimized well. The difference is tens of thousands of times
GPU miner refers to the miner that uses GPU graphics card as the core of computing power. Cryptocurrencies such as Ethereum, bitcoin and diamond use graphics algorithms, so the speed of computing with graphics card will be the highest. Compared with ASIC miner, GPU miner is more well-known, because it is a computer with enhanced graphics card configurationthe purpose of GPU miner is to make money, so we should pursue the power consumption ratio and maximum profit, so we should pay attention to the cost performance. Generally, the medium and high-end positioning graphics cards, such as AMD rx560 and rx570, have high power consumption ratio, which is a good choice for GPU miner. While flagship cards such as gtx1080ti and AMD vega64 have the strongest single card performance, they are not cost-effective in terms of price and power consumption
in addition, the ASIC miner also has some exotic procts, such as the USB miner of burning cat, which is slightly larger than the U disk, and the power consumption is only 2.25w, which is the smallest bitcoin miner at present
< / blockquote >the above quoted digcoin.com - "Introction to mining machinery classification" has many professional terms. I hope it can help you, thank you
development trend: the divergence of development teams leads to the bifurcation of technical routes
the most criticized problem of bitcoin is the small block capacity, which is only 1MB. As a result, bitcoin is becoming more and more unsuitable for trading. Many transactions will not be confirmed immediately after they occur, and many blocks need to wait, so the transaction fees of bitcoin are higher and higher, Obviously, it will be further and further away from the idea of a trading currency
for the problem of bitcoin block capacity, as the founder of bitcoin, Nakamoto Tsung has given a solution. The size of the earliest bitcoin block is designed to be 32MB, and the roadmap of bitcoin expansion is given. The reason why the bitcoin block was limited to 1MB in the early days was to prevent the network congestion caused by a large number of small transfers in the early network
however, bitcoin did not upgrade as it should, but still maintained a block size of 1MB. The reason is the divergence of the bitcoin development team. Nakamoto was the developer of bitcoin, but later retired and left the development task of bitcoin to the bitcoin development team. However, the development team was very different about removing the 1MB block limit, so the development team split up. The original development team (core) wanted to continue to limit the size of 1MB, and the people who left formed other development teams (several), It is also called large block team or support expansion team. In the end, the two groups failed to reach a consensus on the upgrading of bitcoin network. A new bitcoin, bitcoin cash, was created, which is different from the original bitcoin. He inherited all the blocks (transaction records) of bitcoin before the split, but after the split, he used a new block of 8MB, which is different from the previous bitcoin (BTC, developed and maintained by the core team)
there should be three types of hard bifurcations for bitcoin, including the cash bifurcations for bitcoin (uahf). The original bitcoin network is prepared to implement segwit2x, which is the bifurcation scheme of the New York consensus. However, e to opposition, segwit2x was not implemented in the end, maintaining the original bitcoin path. But bitcoin still needs to be upgraded. The emergence of bitcoin cash is not accidental. In fact, there are other bifurcated bitcoin coins, such as bitcoin limited and bitcoin old. It's only because of the problem of popularity that it doesn't enter the public view. Now bitcoin cash is the most competitive bifurcated coin
- the above data and analysis are all from the in depth analysis report on business model innovation and investment opportunities of China's blockchain instry of foresight Instry Research Institute