Blockchain and embedded

1. The structure level of Chongqing jinwowo network analysis blockchain technology is as follows:
blockchain can be roughly divided into two levels,
one is to do the underlying technology of blockchain
the second is to do the upper application of blockchain, that is, the transformation, optimization or innovative application based on blockchain.

2.

EOS can be understood as enterprise operation system, which is a blockchain operating system designed for commercial distributed applications. EOS is a new blockchain architecture, which aims to extend the performance of distributed applications

blockchain originated from bitcoin. On November 1, 2008, a person who called himself Satoshi Nakamoto published the article "bitcoin: a peer-to-peer e-cash system", which elaborated the architecture concept of e-cash system based on P2P network technology, encryption technology, timestamp technology, blockchain technology, etc., marking the birth of bitcoin

extended data

the main features of EOS are as follows:

1, decentralization. Blockchain technology does not rely on additional third-party management institutions or hardware facilities, and there is no central control. In addition to the self-contained blockchain itself, each node realizes information self verification, transmission and management through distributed accounting and storage. Decentralization is the most prominent and essential feature of blockchain

2. Openness. Blockchain technology is based on open source. In addition to the private information of all parties involved in the transaction is encrypted, the data of blockchain is open to everyone. Anyone can query blockchain data and develop related applications through the open interface, so the information of the whole system is highly transparent

3. Independence. Based on consensus specifications and Protocols (similar to various mathematical algorithms such as hash algorithm used by bitcoin), the whole blockchain system does not rely on other third parties, and all nodes can automatically and safely verify and exchange data in the system without any human intervention

source: Network - EOS

3.

1. What is the Internet of things

in fact, in a simple way, big data is to assist decision-making by analyzing and mining a full amount of non sampling data

the characteristics of big data

big data refers to the massive, high growth rate and diversified information capital that needs new data processing mode to collect, store, manage and analyze its content for the purpose of serving decision-making

big data has the following essential characteristics:

1. The fundamental purpose is to serve decision-making. Big data can help all kinds of organizations and indivials greatly improve their decision-making ability and make better decisions and judgments

Big data usually refers to the amount of data above 100t, which is difficult to be calculated effectively by traditional calculation methods, but must rely on new calculation methods and data mining tools

3. High frequency, big data is the data generated by user participation and interaction, according to the user's network traces to timely understand the user's relevant data, this kind of data is high-frequency data calculated by day or even hour. But the traditional data frequency is very low, many data are calculated by month or even by year

Big data is real-time data and can react in real time. For example, entering a keyword in the web search box can instantly present it, while the traditional data collection method is seriously lagging behind

5. Always online. Online is the precondition of big data. From this point of view, big data is always online and can be called at any time. By analyzing the traces of users on various network terminals, big data can better analyze users' behaviors, emotions, thoughts, hobbies and needs, so as to make better decisions and analysis

three key points of big data

first, the availability of data. At present, in China, the development of big data is seriously constrained by the lack of publicity of government information, a lot of data is difficult to obtain, leading to the difficulty of real big data mining and analysis, which requires the government to open more data in time to improve the availability of data

Secondly, the scientific model construction. The scientific nature of the model directly determines the quality of data analysis, which requires a high level of modeling, of course, the more data is concive to the reasonable construction of the model

Third, use experts to refine opinions. The original and high-quality viewpoint based on data mining, which provides the basis for decision-making, highly relies on high-quality data interpretation, which reflects the value of instry experts

provided by IOT media

4. Go language + blockchain training course:
why should we learn go language and what are the advantages of go
1. What are the advantages of go
1: performance
2: language performance is very important
3: developer efficiency & don't be too innovative
4: concurrency & Channel
5: fast compile time
6: team building ability
7: powerful ecosystem
8: gofmt, Mandatory code format
9: grpc and protocol buffers
can be directly compiled into machine code, independent of other libraries. Glibc version has certain requirements, and deployment is completed by throwing a file
static type language has the feeling of dynamic language. Static type language can check out most hidden problems when compiling, while dynamic language has the feeling that there are many packages that can be used and the efficiency of writing is very high.

5.

Ordos urban blockchain Cloud Computing Technology Co., Ltd. is another limited liability company registered on October 16, 2017, with its registered address at room 1101, cloud computing enterprise headquarters base, Ordos high tech Instrial Park

the unified social credit code / registration number of Erdos urban blockchain Cloud Computing Technology Co., Ltd. is 91150691ma0nk97w, and Cao Lingna is the legal person of the company. At present, the company is in business

the business scope of Ordos blockchain Cloud Computing Technology Co., Ltd. is: technology development, technology services, technology consulting, technology transfer of blockchain technology; Server leasing and sales; Technology research and development; Computer software and hardware, network information, data processing, computer system integration technology development; Basic algorithm technology, visual computing technology, embedded system technology, heterogeneous computing system technology, Internet storage integration technology, data center technology, database technology, data intelligence technology, graph computing technology, data communication technology, electronic proct technology application services; Communication transmission and equipment sales; Leasing of facilities and equipment; Value added telecommunication services; Collection and payment of electricity charges

view more information and information of Ordos urban blockchain Cloud Computing Technology Co., Ltd. through aiqicha

6. The hierarchical points of jinwowo network technology analysis blockchain are as follows:

the bottom layer is some common basic moles, such as basic encryption algorithm, network communication library, stream processing, thread encapsulation, message encapsulation and decoding, system time, etc

the middle layer is the core mole of blockchain, which generally includes the main logic of blockchain, such as P2P network protocol, consensus mole, transaction processing mole, transaction pool mole, simple contract or intelligent contract mole, embedded database processing mole, wallet mole, etc

the top layer is often based on the interaction mole of JSON standard RPC. Based on JSON RPC, we can also make a better UI interface or a web service.

7. The Internet of things is just an instry, not a certain subject.
digital currency also has great risks. It is generally operated by a company with strong guarantee.
if you want to invest in something like giving points, please be careful

8. Guangzhou high speed railway station south station, north station. Just go to the ticket window at the station. It's not as complicated as you think!

9. Method 1: you can buy at the selling point
generally speaking, there will be high-speed railway selling point near the living area. If you want to inquire about the selling point, you can go to the official website of high-speed railway (12306. CN) and click passenger service - the selling point inquiry to inquire about

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method 2: you can buy at the high-speed railway boarding office where you are located. Now there are manual and machine tickets, and the machine tickets are convenient and fast. You only need to have your ID card to buy independently. Try to switch off the rush hour to buy, otherwise you will have to wait in line for a long time

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method three: online booking
first to China High Speed Rail official website 12306.cn, register the account number, then click on the ticket on the left side, you need ID card, also need to pay online, available Alipay or bank card.

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steps of taking the bus

after buying the ticket, check the time and arrive at the high-speed railway station half an hour in advance
go through the security check first, put the luggage and backpack into the relevant machine, and then take them out. After taking them out, you enter the waiting hall

check the ticket entrance of your high-speed railway ticket stub and wait beside the corresponding entrance, You can sit on the chair and wait for a while. You can check in 15 minutes in advance. If there is any delay, you can learn from the radio. The following is an example picture. It can be seen that the gate 1

arrives at the check-in time and the ticket is checked in. You can use your ID card to verify directly, or you can use the high-speed rail ticket to verify. The direction of the high-speed rail ticket should be inserted accurately. When it is taken out, the door will open automatically and you can enter

after entering the door, you usually get off the elevator, check your ticket stub again, see your car number and location clearly, and enjoy your high-speed journey after entering the high-speed railway

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precautions

remember to bring your ID card
if you need to make up the ticket, please continue to take the high-speed rail to your destination, and ask the staff after arriving to make up the ticket