Which industry has more opportunities after decentralization
Publish: 2021-05-15 15:45:37
1. Sharing from regional TV network: in a system with many nodes, each node has a high degree of autonomy. Nodes can connect freely to each other to form a new connection unit. Any node may become the stage center, but it does not have the mandatory central control function. The influence between nodes will form nonlinear causality through the network. This open, flat and equal system phenomenon or structure is called & quot; Decentralization & quot;.
2. What is "decentralization"
"decentralization" is translated from the English word decentralization, which is composed of the prefix de -, stem central and suffix ization. Among them, the stem central means "center", the suffix - ization means "... Hua", and the prefix de - has the meanings of leaving, removing, canceling and opposite. Therefore, it is very accurate to translate it into decentralization
what is the meaning of decentralization
vitalik buterin, founder of Ethereum, published the article "the meaning of decentralization" in February 2017, elaborating the meaning of decentralization. He thinks that we should distinguish the centralization and decentralization of computer software from three perspectives: architecture, governance and logic
Architecture centralization refers to the number of nodes that the system can tolerate and continue to run; Governance centralization refers to how many indivials and organizations are needed to control the system; Logic centralization refers to whether the interface and data presented by the system are like a single whole
blockchain is a unified account book of the whole network, so it is logically centralized, which is beyond doubt. From the perspective of architecture, blockchain is based on peer-to-peer network, so it is decentralized. From the perspective of governance, blockchain makes it difficult for a few people to control the whole system through consensus algorithm, so it is decentralized. The decentralization of architecture and governance brings three benefits to blockchain: fault tolerance, anti attack and anti collusion
five differences between blockchain and traditional distributed system
as a new kind of distributed system, blockchain is often mistakenly regarded as a distributed database or log system. In fact, there is a fundamental difference between blockchain and traditional distributed system, namely decentralization. Now let's look at the main differences between blockchain and traditional distributed systems:
(1) consistency algorithm: what blockchain needs to solve is the Byzantine general problem, that is, there are one or more fraulent nodes in the network, which may deliberately violate the protocol or transmit wrong data, Therefore, Byzantine fault-tolerant consensus algorithms, such as BFT, pow, POS, are often used in blockchain; The traditional distributed system only needs to consider the node failure and communication errors, and often uses consistency algorithms such as Paxos and raft, which can not resist the fraulent nodes
(2) central controller: there is no central controller in the blockchain network, and no node can control or coordinate the generation of ledger data. All nodes coordinate through consensus algorithm to generate consistent ledger. However, the traditional publishing system is often controlled by one organization, which uniformly dispatches all nodes to participate in the calculation
(3) rule making: the rule of blockchain is consensus protocol, also known as consensus mechanism, and consensus algorithm is a part of it. Consensus mechanism is generally designed and developed by a person or a team, and the corresponding proceres are developed for the community to use. This seems to be the same as the traditional distributed system, but the change and upgrading of the consensus mechanism of the blockchain requires the community to have a consensus on it. If no consensus can be reached, anyone can implement hard bifurcation and build another community and chain. This is the decentralization process of consensus mechanism.
"decentralization" is translated from the English word decentralization, which is composed of the prefix de -, stem central and suffix ization. Among them, the stem central means "center", the suffix - ization means "... Hua", and the prefix de - has the meanings of leaving, removing, canceling and opposite. Therefore, it is very accurate to translate it into decentralization
what is the meaning of decentralization
vitalik buterin, founder of Ethereum, published the article "the meaning of decentralization" in February 2017, elaborating the meaning of decentralization. He thinks that we should distinguish the centralization and decentralization of computer software from three perspectives: architecture, governance and logic
Architecture centralization refers to the number of nodes that the system can tolerate and continue to run; Governance centralization refers to how many indivials and organizations are needed to control the system; Logic centralization refers to whether the interface and data presented by the system are like a single whole
blockchain is a unified account book of the whole network, so it is logically centralized, which is beyond doubt. From the perspective of architecture, blockchain is based on peer-to-peer network, so it is decentralized. From the perspective of governance, blockchain makes it difficult for a few people to control the whole system through consensus algorithm, so it is decentralized. The decentralization of architecture and governance brings three benefits to blockchain: fault tolerance, anti attack and anti collusion
five differences between blockchain and traditional distributed system
as a new kind of distributed system, blockchain is often mistakenly regarded as a distributed database or log system. In fact, there is a fundamental difference between blockchain and traditional distributed system, namely decentralization. Now let's look at the main differences between blockchain and traditional distributed systems:
(1) consistency algorithm: what blockchain needs to solve is the Byzantine general problem, that is, there are one or more fraulent nodes in the network, which may deliberately violate the protocol or transmit wrong data, Therefore, Byzantine fault-tolerant consensus algorithms, such as BFT, pow, POS, are often used in blockchain; The traditional distributed system only needs to consider the node failure and communication errors, and often uses consistency algorithms such as Paxos and raft, which can not resist the fraulent nodes
(2) central controller: there is no central controller in the blockchain network, and no node can control or coordinate the generation of ledger data. All nodes coordinate through consensus algorithm to generate consistent ledger. However, the traditional publishing system is often controlled by one organization, which uniformly dispatches all nodes to participate in the calculation
(3) rule making: the rule of blockchain is consensus protocol, also known as consensus mechanism, and consensus algorithm is a part of it. Consensus mechanism is generally designed and developed by a person or a team, and the corresponding proceres are developed for the community to use. This seems to be the same as the traditional distributed system, but the change and upgrading of the consensus mechanism of the blockchain requires the community to have a consensus on it. If no consensus can be reached, anyone can implement hard bifurcation and build another community and chain. This is the decentralization process of consensus mechanism.
3. From the perspective of Internet development, decentralization is the form of social relationship and content generation formed in the process of Internet development, and is a new network content proction process relative to "centralization"
compared with the early Internet (WEB 1.0) era, today's Internet (Web 2.0) content is no longer proced by professional websites or specific groups of people, but is the result of the joint participation and equal power of all Internet users. Anyone can express their views or create original content on the Internet to proce information together
with the diversification of network service forms, the decentralized network model becomes more and more clear and possible. After the rise of Web2.0, the services provided by Wikipedia, Flickr, blogger and other network service providers are decentralized. Any participant can submit content, and Internet users can create or contribute content together
since then, with the emergence of more simple and easy-to-use decentralized network services, the characteristics of Web2.0 have become more and more obvious. For example, the birth of services more suitable for ordinary Internet users, such as twitter and Facebook, has made it easier and more diversified to proce or contribute content to the Internet, thus enhancing the enthusiasm of Internet users to participate in the contribution and recing the threshold of procing content. Eventually, every netizen becomes a tiny and independent information provider, making the Internet more flat and content proction more diversified
from the perspective of astronomy, decentralization refers to the fact that the universe has no center, that is, a boundless mass without a central point.
compared with the early Internet (WEB 1.0) era, today's Internet (Web 2.0) content is no longer proced by professional websites or specific groups of people, but is the result of the joint participation and equal power of all Internet users. Anyone can express their views or create original content on the Internet to proce information together
with the diversification of network service forms, the decentralized network model becomes more and more clear and possible. After the rise of Web2.0, the services provided by Wikipedia, Flickr, blogger and other network service providers are decentralized. Any participant can submit content, and Internet users can create or contribute content together
since then, with the emergence of more simple and easy-to-use decentralized network services, the characteristics of Web2.0 have become more and more obvious. For example, the birth of services more suitable for ordinary Internet users, such as twitter and Facebook, has made it easier and more diversified to proce or contribute content to the Internet, thus enhancing the enthusiasm of Internet users to participate in the contribution and recing the threshold of procing content. Eventually, every netizen becomes a tiny and independent information provider, making the Internet more flat and content proction more diversified
from the perspective of astronomy, decentralization refers to the fact that the universe has no center, that is, a boundless mass without a central point.
4. In fact, decentralization is equivalent to multi centralization. This is the characteristic of blockchain technology. Everyone has the right to participate. Now blockchain projects are very popular. There is a SMIC blockchain service platform project initiated by Changsha high tech Zone, which is now in the formal operation stage. It has also been selected as a key project of Hunan blockchain. The next step is to recruit enterprises to join the chain.
5. Hello, it's a great honor to be here to answer your question. The following are some of my views on this issue. If there are any mistakes, please point them out. Take the blockchain network mutual aid platform for example. The performance of decentralization in this platform is as follows:
open and transparent
open and transparent. Once all the information recorded on the blockchain is difficult to tamper with and cannot be hidden, users can check it at any time. Generally speaking, as long as the real name authentication is added to the plan, the blockchain will generate nodes, No one can modify (including the platform)
never downtime
the blockchain based on the public chain is not affected by any institution or indivial. As long as the incentive mechanism is effective and the Internet exists, the blockchain will exist. Generally speaking, since the platform service personnel are not available, the platform machine has been working
democratic decision-making
bottom up decision-making, blockchain proposes a variety of different consensus mechanisms to help users effectively form bottom-up decision-making and jointly participate in major decisions. Generally speaking, if the platform wants to modify a thing, for example, the content of the plan can only be carried out after more than half of the people participate in the voting, or the application for mutual aid needs mutual aid fund. When more than half of the people do not agree with the publicity, the platform will not pass. Thank you very much for your patience. If you have any help, please accept it. I wish you a happy life! thank you!
open and transparent
open and transparent. Once all the information recorded on the blockchain is difficult to tamper with and cannot be hidden, users can check it at any time. Generally speaking, as long as the real name authentication is added to the plan, the blockchain will generate nodes, No one can modify (including the platform)
never downtime
the blockchain based on the public chain is not affected by any institution or indivial. As long as the incentive mechanism is effective and the Internet exists, the blockchain will exist. Generally speaking, since the platform service personnel are not available, the platform machine has been working
democratic decision-making
bottom up decision-making, blockchain proposes a variety of different consensus mechanisms to help users effectively form bottom-up decision-making and jointly participate in major decisions. Generally speaking, if the platform wants to modify a thing, for example, the content of the plan can only be carried out after more than half of the people participate in the voting, or the application for mutual aid needs mutual aid fund. When more than half of the people do not agree with the publicity, the platform will not pass. Thank you very much for your patience. If you have any help, please accept it. I wish you a happy life! thank you!
6. There are many kinds of peer-to-peer communication network, generally in the communication instry, we pay more attention to the media stream peer-to-peer communication. Control is still centralized. Such as the relationship between SIP protocol and RTP
if blockchain technology is decentralized, it means that there is no central server responsible for unified management
point to point encryption is mainly the exchange of secret keys. It's hard for this technology to be absolutely safe. In the future, peer-to-peer encryption will create a more private communication mode for us
finally, security is relative and costly. The more secure, the more complex.
if blockchain technology is decentralized, it means that there is no central server responsible for unified management
point to point encryption is mainly the exchange of secret keys. It's hard for this technology to be absolutely safe. In the future, peer-to-peer encryption will create a more private communication mode for us
finally, security is relative and costly. The more secure, the more complex.
7. " There are two ways to open an account:
1) log in to the official website to open an account online through the official website - "member center" - online registration
2) after installing zongyihui software on mobile phone, online account opening can be done through zongyihui - "online account opening"& quot;
1) log in to the official website to open an account online through the official website - "member center" - online registration
2) after installing zongyihui software on mobile phone, online account opening can be done through zongyihui - "online account opening"& quot;
8.
What instry will be popular after the epidemic? The purpose of asking this question is to find a promising instry and do a rich job. In order to achieve this goal, first of all, you need to understand some basic concepts in order to find the right career path for you
What is instry? What is instry? What is a profession< p> Instry refers to the proct of the continuous development of social division of labor and proctive force. In China, instry is divided into three categories, namely agriculture, instry and service instry, which are commonly known as the primary instry, the secondary instry and the tertiary instryinstry refers to the specific needs of people's life, that is, around the people's market demand for food, clothing, use and transportation
occupation refers to the same form of work
People who have studied philosophy know that content determines form, that is, instry determines career; Only when there is social demand can there be instry, and only when there is instry can there be occupation; People's career feelings can only be attached to the content, not to the form. Therefore, people's career direction depends on the emotional support, that is, on your choice of instry direction 
9. Learning auto repair is still very good for employment. There are many jobs that can be done by learning auto repair technology well. Now there is a big gap of auto technical talents. As long as you have excellent technology, there will be no problem in employment! It is suggested to study hard
now more and more auto repair stations and auto repair factories appear. What's the employment prospect of learning auto repair? How about graating from auto repair? Now let's discuss the employment prospects of auto repair<
instry situation
new changes of automobile maintenance market in people's traditional concept, automobile maintenance instry is dirty and tired, few people are willing to engage in this occupation
with the continuous increase of China's car ownership, the deepening of reform and the development of high and new technology, China's automobile maintenance enterprises have developed rapidly in recent years, and have begun to mature. Automobile maintenance enterprises continue to develop to large-scale, high-grade and high-level
some new enterprises invest millions or tens of millions to build modern factories, office buildings, vocational dormitories, toilets and luxurious business rooms, purchase advanced maintenance equipment and testing instruments proced in the United States, Germany and other countries, and old enterprises also decorate and add equipment one after another
while paying attention to the "hardware" investment, we also pay attention to the "software" level. Technical workers must be trained to work with certificates. At the same time, we also pay attention to the training of new automobile maintenance technology. All maintenance enterprises are taking the road of self-improvement and self-improvement
e to the change of traditional maintenance methods, modern cars have become high-tech from structure to control technology, and it is no longer feasible to adopt the old "craft repair" method. The method of dismantling and unloading by experience alone is no longer suitable for modern car maintenance. Modern automobile is high in science and technology, so it is necessary to adopt the method of non disintegration, use the detector for diagnosis, correctly find out the fault and the cause of the fault, and formulate the troubleshooting scheme. This is a standardized way to repair the car< At present, the technical quality of employees in domestic maintenance enterprises is generally low, and the overall technical level can not meet the development needs of new automobile technology. Most of the employees in the existing maintenance enterprises are high school, junior high school or even primary school graates, and a few come from various technical schools
market situation
China's automobile instry is in a state of rapid growth. On the one hand, cars are getting cheaper and cheaper, and most people in China have car dreams; On the one hand, China has a huge automobile demand market, which to a large extent stimulates China's auto repair instry to rise against the market<
the auto repair instry often hears the news that a technician or technical director changes his job, which all send a signal: auto repair talents are becoming more and more popular, and the value of former "repair workers" will be rising all the way now
a good auto repair and maintenance master has a good salary. The monthly salary of a sheet metal technician is even higher. If he is a senior technician, he will earn more. If it is a technician who knows more professional knowledge and new technology and is good at repairing new cars and imported cars, what will the salary be
when more and more automobile enterprises develop towards the four in one (vehicle sales, spare parts sales, after-sales service and maintenance), those comprehensive automobile repair talents with sales, management and maintenance experience become the target of mutual "corner digging" among automobile enterprises. According to some dealers in the city, at present in the auto repair instry, senior auto repair technicians are generally lacking<
learning auto repair is no longer the traditional time to learn skills from teachers. Now it is an era of both skills and ecation.
now more and more auto repair stations and auto repair factories appear. What's the employment prospect of learning auto repair? How about graating from auto repair? Now let's discuss the employment prospects of auto repair<
instry situation
new changes of automobile maintenance market in people's traditional concept, automobile maintenance instry is dirty and tired, few people are willing to engage in this occupation
with the continuous increase of China's car ownership, the deepening of reform and the development of high and new technology, China's automobile maintenance enterprises have developed rapidly in recent years, and have begun to mature. Automobile maintenance enterprises continue to develop to large-scale, high-grade and high-level
some new enterprises invest millions or tens of millions to build modern factories, office buildings, vocational dormitories, toilets and luxurious business rooms, purchase advanced maintenance equipment and testing instruments proced in the United States, Germany and other countries, and old enterprises also decorate and add equipment one after another
while paying attention to the "hardware" investment, we also pay attention to the "software" level. Technical workers must be trained to work with certificates. At the same time, we also pay attention to the training of new automobile maintenance technology. All maintenance enterprises are taking the road of self-improvement and self-improvement
e to the change of traditional maintenance methods, modern cars have become high-tech from structure to control technology, and it is no longer feasible to adopt the old "craft repair" method. The method of dismantling and unloading by experience alone is no longer suitable for modern car maintenance. Modern automobile is high in science and technology, so it is necessary to adopt the method of non disintegration, use the detector for diagnosis, correctly find out the fault and the cause of the fault, and formulate the troubleshooting scheme. This is a standardized way to repair the car< At present, the technical quality of employees in domestic maintenance enterprises is generally low, and the overall technical level can not meet the development needs of new automobile technology. Most of the employees in the existing maintenance enterprises are high school, junior high school or even primary school graates, and a few come from various technical schools
market situation
China's automobile instry is in a state of rapid growth. On the one hand, cars are getting cheaper and cheaper, and most people in China have car dreams; On the one hand, China has a huge automobile demand market, which to a large extent stimulates China's auto repair instry to rise against the market<
the auto repair instry often hears the news that a technician or technical director changes his job, which all send a signal: auto repair talents are becoming more and more popular, and the value of former "repair workers" will be rising all the way now
a good auto repair and maintenance master has a good salary. The monthly salary of a sheet metal technician is even higher. If he is a senior technician, he will earn more. If it is a technician who knows more professional knowledge and new technology and is good at repairing new cars and imported cars, what will the salary be
when more and more automobile enterprises develop towards the four in one (vehicle sales, spare parts sales, after-sales service and maintenance), those comprehensive automobile repair talents with sales, management and maintenance experience become the target of mutual "corner digging" among automobile enterprises. According to some dealers in the city, at present in the auto repair instry, senior auto repair technicians are generally lacking<
learning auto repair is no longer the traditional time to learn skills from teachers. Now it is an era of both skills and ecation.
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