Who supports virtual currency
Caixin reporter: on January 20, the people's Bank of China held a seminar on digital currency and proposed to strive for the early launch of the digital currency issued by the central bank. What is the reason for this< In fact, the central bank has been studying digital currency for a long time. From the perspective of historical development trend, money has always evolved with the development of technological progress and economic activities. From the early physical money, commodity money to the later credit money, it is a natural choice to adapt to the development of human commercial society. As the currency of the previous generation, paper money has low technology content. From the perspective of safety and cost, it is the general trend to be replaced by new technology and new procts. In particular, with the development of the Internet and the great changes in payment methods all over the world, the establishment of digital currency issuance and circulation system is very necessary for the construction of financial infrastructure and the promotion of economic quality, efficiency and upgrading
how to replace it? There are several ideas: one is to imitate paper money. For example, transactions between paper money are anonymous, and digital currency also wants to be anonymous, which leads to its technology choice. But the reason why banknotes are anonymous is not designed intentionally at first, but no other technology can guarantee the convenience of a large number of small transactions. Of course, some people think that anonymity is better for future digital currency transactions, because assuming that the government may make mistakes, the privacy of private wealth and the use of wealth should be absolutely protected
from the perspective of the central bank, the future digital currency should try its best to protect private privacy, but social security and order are also important. In case of criminal problems, it is necessary to retain the necessary verification means, that is to say, it is necessary to find a balance between protecting privacy and cracking down on criminal activities. The mastery of the balance between these two motivations also makes the tendency of technology choice different<
Caixin: what are the central bank's ideas on the issue and management of digital currency? What's the difference between digital currency and digital currency spontaneously appearing in the current market< / > Zhou Xiaochuan: at present, what many countries in the world recognize is the framework of digital or electronic money dominated by the central bank, which may be different from that of the people
when the central bank issues digital currency, it mainly embodies the following principles: first, it provides convenience and security. Second, as mentioned above, we should balance the protection of privacy with the maintenance of social order and the fight against illegal and criminal acts, especially for money laundering, terrorism and other criminal acts. Third, it should be concive to the effective operation and transmission of monetary policy. The fourth is to retain the control of currency sovereignty. Digital currency is freely convertible and controllable. Therefore, we believe that digital currency as legal tender must be issued by the central bank. The issue, circulation and transaction of digital currency should follow the idea of integration of traditional currency and digital currency, and implement the same principle of management
Caixin: is there a timetable for the launch of digital currency? Is it going to replace paper money in the end
Zhou Xiaochuan: 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< However, there are many other applications of virtual currency. For example, the European crowdfunding platform uses blockchain technology to combine digital currency with real assets.
bitcoin can be said to be the ancestor of virtual currency. It was launched in 2009. At that time, the value of bitcoin was very low. One dollar could buy more than 1300 bitcoins. At that time, a programmer in the United States exchanged 1000 bitcoins for two pizzas, which is often ridiculed by everyone. A lot of people are saying that if his bitcoin had been preserved until now, he would have been a billionaire. But who knew that bitcoin would be so valuable in modern times? At that time, few people knew about bitcoin, so there was no hype. At that time, bitcoin had no economic purpose. It was just used to exchange game equipment
now the world uses a lot of electricity to dig bitcoin every year, because the cost of electricity is very high, and the market value of bitcoin is volatile, so the benefits obtained by digging bitcoin are very small
leeks, there are thousands of leeks on the "currency exchange"< br />
in a narrow sense, server refers to some high-performance computers that can provide services through the network. Compared with ordinary PC, the stability, security, performance and other aspects are higher, so the CPU, chipset, memory, disk system, network and other hardware are different from ordinary PC
as the node of the network, the server stores and processes 80% of the data and information on the network, so it is also called the soul of the network. Make an image analogy: the server is like a post office switch, while fixed or mobile network terminals such as computers, laptops, PDAs and mobile phones are just like telephones scattered in families, various office places and public places. The telephone communication between us and the outside world in our daily life and work must go through the switch to reach the target telephone; In the same way, network terminal devices, such as microcomputers in families and enterprises, must also go through the server to access the Internet, obtain information, communicate with the outside world, and have entertainment. Therefore, it can also be said that the server is "organizing" and "leading" these devices
it is a kind of high-performance computer that provides various services for client computers on the network. Under the control of the network operating system, it provides the connected hard disk, tape, printer, modem and various special communication devices to the customer sites on the network for sharing, and also provides centralized computing, information publishing and data management services for network users. Its high performance is mainly reflected in the high-speed computing ability, long-time reliable operation, strong external data throughput and so on
the structure of server is basically similar to that of microcomputer, including processor, hard disk, memory, system bus, etc. they are specially designed for specific network applications, so there are great differences between server and microcomputer in processing capacity, stability, reliability, security, scalability, manageability, etc. Especially with the progress of information technology, the role of the network is more and more obvious, and the requirements for data processing ability and security of your information system are also higher and higher; If you can't access the ATM normally, you should consider the server, the backstage commander of these equipment systems, instead of complaining about the quality of the staff and other objective conditions.