Digital cryptocurrency replaces legal tender
1、 Different definitions:
1. virtual currency:
virtual currency refers to non real currency
digital currency:digital currency is an alternative currency in the form of electronic currency. Both digital gold coin and cryptocurrency belong to digiccy
3. Cryptocurrency:
cryptocurrency is a kind of transaction medium that uses cryptography principles to ensure transaction security and control the creation of transaction units
4. Token (token):
a kind of article whose shape and size are similar to currency, but the scope of use is limited and has no currency effect, and its token is the homonym of token in English
Second, the characteristics are different:1; It can also be said that virtual currency is personalized currency. In another way, it can also be called information currency
2. Digital currency:
is an unregulated and digital currency, which is usually issued and managed by developers and accepted and used by members of specific virtual communities
Cryptocurrency:cryptocurrency is based on the decentralized consensus mechanism, which is opposite to the banking and financial system relying on the centralized regulatory system
4. Token (token):
usually needs to be exchanged for money, used in shops, playgrounds, mass transportation and other places, as a voucher to use services and exchange goods
extended data
at present, digital currency is more like an investment proct, because it lacks a strong guarantee agency to maintain its price stability, and its role as a value measure has not yet appeared, so it can not be used as a means of payment. As an investment proct, digital currency cannot develop without trading platform, operating company and investment company
digital currency is a double-edged sword. On the one hand, the blockchain technology it relies on has been decentralized and can be used in other fields except digital currency, which is one of the reasons why bitcoin is popular; On the other hand, if digital currency is widely used by the public as a kind of currency, it will have a huge impact on the effectiveness of monetary policy, financial infrastructure, financial market and financial stability
Digital cryptocurrency is a kind of currency that is not issued by legal tender institutions and controlled by the central bank. It is based on the open source code of a group of equations calculated by computers all over the world, and is generated by a large number of calculation processing of computer graphics card and CPU. It uses the design of cryptography to ensure the security of all aspects of currency circulation
development materials:
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definition of digital currency:
digital currency is abbreviated as digiccy, which is the abbreviation of "digital currency" in English and the alternative currency in the form of electronic currency. Both digital gold coin and cryptocurrency belong to digiccy< br />
we can't say the timetable of digital currency yet. China has a large population and a large volume. For example, a new version of RMB can be changed in a few months for small countries, but it will take about 10 years for China. Therefore, digital currency and cash will be parallel and graally replaced for quite a long time. In the later stage, the transaction cost of cash will graally rise. For example, in the past, banks were asked to count a large number of coins, and there was no charge for them. Later, they may need to charge. With the incentive mechanism, people will naturally use more digital currency, but the two will still co deposit in the longer term
the central bank's issuance of digital currency is also inspired by cryptocurrencies such as bitcoin and lettercoin, and the European crowdfunding model of combining digital currency with real assets also draws on the experience of bitcoin.
however, the digital currency planned by the central bank is also different from bitcoin, Leyte, decent and other digital cryptocurrencies, but it will be used for reference.
moreover, the TDP of the former is much higher than that of the latter, which shows that Intel has left a huge space for overclocking of i7-6700k
therefore, after overclocking the i7-6700k, the i7-6700 will naturally be pressed by force. There is no doubt about this
it should be said that Intel has made the non frequency locking K version more conscientious this time
however, when it is usually used, such a big gap is not felt
if i7-6700k is not overclocking, it is similar to 6700
after overclocking, there is an experience improvement in large software.
it's like an account book. We can record all our loans on it. Anyone can write on it, but how can we ensure that others don't Scribble
you will want to sign at the back, but someone will fake your signature. So we need to use electronic signature, that is, each account will generate a key, which only you know, and then confirm that the signature is your own through the public key
the above is only a safe way of lending, but it still needs a website to act as a bank, so the website can modify the amount of lending at will, and there is no law to restrict it
therefore, it is necessary to decentralize, that is, to publish one's own account and let everyone share it, so that the opposite side will not cheat. But how do you make sure people don't tamper with your bills
first of all, an account book must be divided into one page, that is, blockchain. According to the content of the blockchain, a hash function (a bit like a key, but with different functions) will be generated. The hash function is a one-way function and can't be pushed backward, so you can only rely on guessing to decipher it. The amount of enumeration needed to decipher a password is called workload. Then the computer will stamp the proof of workload on your bill, and the proof of workload means there is no mistake. So how can you convince others that you're not lying
this requires credibility. The measure of credibility is workload. The bill with heavy workload has more credibility. The workload here does not refer to the amount of calculation, but refers to the number of bills, that is, the number of blockchains. The more repeated the same account is received, the stronger the credibility is. Because others will sort out the accounts they receive, and then re publish them, which is an infinite cycle process. This prevents people from cheating by not publishing their bills
every time a blockchain is released, it will be rewarded, that is, "mining". But in order to prevent the unlimited expansion of bitcoin, bitcoin will dig less and less, that is, the rewards will be less and less. Therefore, players want to increase the release volume of blockchain by paying others a reward (service charge) at their own expense, and at the same time form its monetary function
furthermore, the total number of bitcoin is unchanged, but more and more people use it, so it is more and more difficult to dig, which is why many people have been complaining about the mine disaster
in my opinion, bitcoin is not so much a currency as a game. In short, it means that you pay more for mining, and the more you dig, the more you win.