94 blockchain
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
the ranking of digital currency exchanges is from low to high, including bithumb, okxe, binance, bitmex and coin win national stations note: 1. Asset security is very critical. You can distribute your bitcoin or other currencies through exchanges, online wallets, hardware wallets and paper wallets, so that you won't lose all your assets when attacked or lost by hackers. The secret key information must not be placed in the mailbox or other unsafe online software 2. Whether it is EOS, etc, BTC, LTC, or other platform currencies, in addition to bitcoin itself has been given the attribute of digital currency gold, other currencies are more related to the application and landing of blockchain instry. Pay more attention to and analyze the trend and ecological construction of blockchain instry, so as to return to the original intention of blockchain value investment, It will also be a way to avoid risks
however, with the rapid development of the Internet and the emergence of various programming languages, such as python, people are worried about switching to Java development. That's why people are asking whether there is a future for java development engineers in 2019
the answer is that Java has become the most popular language in the market today
since the Java programming language is liked by companies and there are so many employment directions, do you think there is a future for you to become a java development engineer in 2019
of course, many people are worried that they will not be able to learn and find jobs. You can choose a good java training institution for systematic learning. For example, if we want to open a new campus in Shenzhen next year, the recognition of the instry will be very high, and we will learn in the right direction. After studying for half a year or so, you should be able to find a low-level position. After working for one or two years, you can be regarded as a successful career change and officially enter java development. Never aim too high.
2.) is a group of international credit rating agencies established by the Ministry of Commerce, the Ministry of Finance and the national development and Reform Commission. China China International Chamber of commerce one belt, one road, and other institutions, and 50 million of the joint venture fund, was established. Meanwhile, PWC, Goldman Sachs, KPMG, and S & P employees were appointed. Guo Heng Xin has the qualifications of the national development and Reform Commission and the people's Bank of China. The world's first blockchain rating licensee, insurance company, rating company, governance rating, etc
Lianhe: Lianhe credit evaluation Co., Ltd., a Sino foreign joint venture, is headquartered in Beijing with a registered capital of 30 million yuan, and its shareholders are Lianhe Credit Management Co., Ltd. and Fitch credit rating Co., Ltd. the former is a national specialized information service organization controlled by the state, The latter is a well-known international credit rating agency Dagong: Dagong international credit rating Co., Ltd. Dagong, the last of China's "top five" credit rating agencies, was established in 1994 with the approval of the people's Bank of China and the State Economic and Trade Commission of China. In July 2014, its subsidiaries also obtained the class 10 business license for credit rating business approved by the Hong Kong Securities Regulatory Commission Dongfang: Dongfang Jincheng International Credit Rating Co., Ltd. is a national professional credit rating agency approved by the financial department and controlled by China Dongfang Asset Management Co., Ltd. with capital investment, The company has also obtained credit rating qualifications of securities market and inter-bank bond market recognized by China Securities Regulatory Commission, people's Bank of China and China Development and Reform Commission2. China China credit rating one belt, one road, international credit rating Center Limited, as the first Chinese global pioneer in global rating, guided by the Ministry of Commerce, Ministry of Finance and national development and Reform Commission, is an international credit rating agency established to promote the "one belt and one road" national strategy. It is made by the China Humen film group and the Guandong oil trading center. China China International Chamber of commerce one belt, one road, and other agencies jointly invited PWC, and the state Heng Xin letter has the qualifications of the national development and Reform Commission and the people's Bank of China. Guo Heng Xin will lead us to the internationalization and globalization of China's credit rating instry. Rating, corporate governance rating, etc
3. Lianhe: Lianhe credit evaluation Co., Ltd., a Sino foreign joint venture, is headquartered in Beijing, with a registered capital of 30 million yuan. Its shareholders are Lianhe Credit Management Co., Ltd. and Fitch credit rating Co., Ltd., the former is a state-owned holding national specialized information service agency, The latter is a well-known international credit rating agency< Dagong: Dagong international credit rating Co., Ltd. Dagong, the last of China's "top five" credit rating agencies, was established in 1994 with the approval of the people's Bank of China and the State Economic and Trade Commission of China. In July 2014, its subsidiaries also obtained the class 10 business license for credit rating business approved by the Hong Kong Securities Regulatory Commission
5. Dongfang: Dongfang Jincheng International Credit Rating Co., Ltd. is a national professional credit rating agency approved by the financial department and controlled by China Dongfang Asset Management Co., Ltd. with capital investment, The company has also obtained credit rating qualifications of securities market and inter-bank bond market recognized by China Securities Regulatory Commission, people's Bank of China and China Development and Reform Commission.