The difference between bitcoin and cryptocurrency
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
1. The concept range is different. Bitcoin is a kind of digital currency, and the concept of digital currency covers bitcoin
However, some digital currencies have independent issuers The biggest difference between bitcoin and other virtual currencies is that the total quantity of bitcoin is very limited and it has a strong scarcity. The monetary system used to have no more than 10.5 million in four years, after which the total number will be permanently limited to 21 milliondigital currency is abbreviated as digiccy, which is the abbreviation of "digital currency" in English. It is an alternative currency in the form of electronic currency. Both digital gold coin and cryptocurrency belong to digiccy. Bitcoin is a digital currency
digital currency is different from the virtual currency in the virtual world, because it can be used for real goods and services transactions, not limited to online games. The early digital currency (digital gold currency) is a form of electronic currency named after the weight of gold
today's digital currencies, such as bitcoin, lettercoin and ppcoin, are electronic currencies created, issued and circulated by means of check sum cryptography. It is characterized by the use of P2P peer-to-peer network technology to issue, manage and circulate currency. In theory, it avoids bureaucratic examination and approval, so that everyone has the right to issue currency
illegal digital currency
in recent years, "virtual currency" represented by bitcoin, Ethernet currency and Leyte currency has been traded centrally on some Internet platforms. With the help of financial technology, the price of these "currencies" has graally spread to investment, financing and other financial fields, which has aroused wide attention from all walks of life
not long ago, the people's Bank of China and other seven ministries and commissions jointly issued the announcement on preventing the financing risk of token issuance, which clearly regulated the relevant behaviors. Experts pointed out that "virtual currency" is not legal tender (legal currency) issued by monetary authorities, but a specific virtual commodity in essence
therefore, it is undoubtedly a great legal and economic risk to think that "virtual currency" has or will have the nature of legal tender and to carry out speculation, network fund-raising, lending and financing
Differences:
non encrypted currency (enterprise currency):
1, personal behavior
2, company's own currency
3, unable to decentralize
4, unable to trade on international trading platform
5, unlimited issuance
6, no mine website, no original code
7, controllable price, mostly one-way relationship (dining ticket of an enterprise, Qmoney and so on)
open source digital cryptocurrency:
1. Decentralization -- not regulated by indivials, companies and national banks
2. Limited issue
3. Free trade on international trading platform
4. Original code
5. Not taxed, not frozen, uncontrollable price
cryptocurrency advantages:
1. Compared with paper money, Save the cost of printing, data audit, anti-counterfeiting, escort circulation, safe keeping and so on
2. It is impossible to control the number of issues without issuing institutions
3. Borderless. If you use cryptocurrency transaction, directly enter the account address, click the mouse, wait for the network to confirm the transaction, a lot of money will pass
4. Using cryptocurrency in any store can save the cost of tax and capital supervision
5. It is not controlled by the central bank and the quantity is limited, so it can completely resist the pressure of inflation. Let the wealth of the common people keep its value and increase its value The cryptocurrency other than bitcoin is also known as counterfeit currency and competitive currency (English: altcoin). Part of it is a virtual currency similar to bitcoin, which is based on the ideas, principles and source code of bitcoin. At present, more than 800 cryptocurrencies are in circulation
because bitcoin itself does not have an authoritative issuing institution and state power to maintain its authority and uniqueness, bitcoin and its imitators can only get along equally. It is not absolutely exclusive
virtual currencies are generally at the bottom, and many of them are pyramid schemes or funds
in fact, cryptocurrency, virtual currency and digital currency are the same, but they are called differently
at present, the mainstream digital currencies in the market include bitcoin, bitcoin cash, wikilink and so on.
PSTN (public switched telephone network)
is a global voice communication circuit switched network, including commercial and government-owned
includes commercial and government-owned. It also refers to simple old fashioned telephone service (POTS). It is a collection of all circuit switched telephone networks since Alexander Graham Bell invented the telephone. Today, in addition to the final connection between the user and the local switchboard, the PSTN has been fully digitized technically
extended data:
the main components of PSTN network are as follows:
1. Transmission system: cable (cable, optical fiber) is the main, cable and wireless (satellite, ground and radio) are used alternately, and the transmission system transits from PDH to SDH and DWDM
2. Switching system: the switching equipment in the telephone office, the exchange, has been programmed and digitized graally, and the connection process is controlled by computer User system: including telephone, fax and other terminals, and a pair of wires used to connect them with the switch (called user loop). The user terminal has been graally digitized, multimedia and intelligent, and the user loop has been digitized and broadband Signaling system: in order to realize the communication between users, various control signals are provided between exchange offices, which are mainly call establishment and releaseaccess through PSTN:
dial up Internet / Intranet / LAN- Network interconnection between two or more LANs
Although PSTN has some problems in data transmission, it is still an irreplaceable networking medium (Technology). In particular, the application of xDSL technology and procts invented by Bellcore, which is based on PSTN, expands the development and application space of PSTN, making the networking speed between 9mbps and 52mbps