Engineer of Guangzhou Ethereum
Publish: 2021-05-14 04:48:54
1. About digital currency, say some of their own views, you listen to, feel unreasonable just laugh
money, as a measure of transaction value, does not necessarily have value in itself, it can only be used as an intermediate unit of measurement. It's just like China has only RMB as legal tender, that is to say, government guarantee has value. For example, in those war-torn areas, ten jin currency may not buy an egg, which is the reason
back to digital currency, digital currency, until now, no country has recognized it as the currency in circulation of its own country. It seems that last year or the year before last, our country also banned some. In this case, digital currency can only be sold at a price higher than your purchase price, so that you can make money. But digital currency itself does not have any value. Unlike stocks, it is your ownership of listed companies. So if you can't find someone to buy digital currency, it's worthless
the Ponzi scheme in history, the Dutch tulip, when it was the most expensive, a tulip was worth buying a house. When no one bought it, all the tulips rotted. In addition, they couldn't get a potato. Therefore, Buffett said that digital money is a bubble, which is a hoax.
in addition, there is a saying in the stock market that when all the ladies in the vegetable market begin to discuss the stock market, it is the time when the stock market reaches its peak. In my opinion, this also applies to digital currency. When many people are discussing how to make money and how to make a lot of money, the risk has accumulated to a great extent. Most of the time, when the stock begins to fall, many people are still in the previous inertial thinking, thinking that it will rebound soon, and then it will get lower and lower, and they are more reluctant to sell it. This is why many people hold a high position on it
I'm not sure whether it is the highest point of digital currency, but I think that digital currency, which can be issued by anyone, has no purchase value and can only be sold to others. I think it's a fraud.
money, as a measure of transaction value, does not necessarily have value in itself, it can only be used as an intermediate unit of measurement. It's just like China has only RMB as legal tender, that is to say, government guarantee has value. For example, in those war-torn areas, ten jin currency may not buy an egg, which is the reason
back to digital currency, digital currency, until now, no country has recognized it as the currency in circulation of its own country. It seems that last year or the year before last, our country also banned some. In this case, digital currency can only be sold at a price higher than your purchase price, so that you can make money. But digital currency itself does not have any value. Unlike stocks, it is your ownership of listed companies. So if you can't find someone to buy digital currency, it's worthless
the Ponzi scheme in history, the Dutch tulip, when it was the most expensive, a tulip was worth buying a house. When no one bought it, all the tulips rotted. In addition, they couldn't get a potato. Therefore, Buffett said that digital money is a bubble, which is a hoax.
in addition, there is a saying in the stock market that when all the ladies in the vegetable market begin to discuss the stock market, it is the time when the stock market reaches its peak. In my opinion, this also applies to digital currency. When many people are discussing how to make money and how to make a lot of money, the risk has accumulated to a great extent. Most of the time, when the stock begins to fall, many people are still in the previous inertial thinking, thinking that it will rebound soon, and then it will get lower and lower, and they are more reluctant to sell it. This is why many people hold a high position on it
I'm not sure whether it is the highest point of digital currency, but I think that digital currency, which can be issued by anyone, has no purchase value and can only be sold to others. I think it's a fraud.
2.
It does not belong to MLM
Ethereum is an open source public blockchain platform with smart contract function, which provides decentralized virtual machine (Ethereum virtual machine) to process point-to-point contract through its special cryptocurrency Ethereum
the concept of Ethereum was first proposed by vitalik buterin, a programmer, from 2013 to 2014, inspired by bitcoin, to the effect of "next generation cryptocurrency and decentralized application platform", and began to develop through crowdfunding in 2014. The market value of Ethernet currency is second only to bitcoin, and it is the second largest encrypted digital currency in the world
extended data
bitcoin has created the first decentralized cryptocurrency, and has fully tested the feasibility and security of blockchain technology in more than five years. In fact, bitcoin's blockchain is a set of distributed database. If a symbol bitcoin is added into it and a set of protocol is specified, the symbol can be transferred safely on the database without trusting a third party. The combination of these features perfectly constructs a currency transmission system bitcoin network
however, bitcoin is not perfect, and the scalability of the protocol is a deficiency. For example, there is only one symbol in the bitcoin Network - bitcoin, and users can't customize other symbols. These symbols can represent the company's stocks or debt certificates, which will lose some functions
In addition, a stack based scripting language is used in bitcoin protocol. Although this language has some flexibility to realize functions such as multi signature, it is not enough to build more advanced applications, such as decentralized exchanges. Ethereum is designed to solve the problem of insufficient scalability of bitcoin3. In fact, Ethernet is an electronic virtual currency, which is regarded as "bitcoin version 2.0". The blockchain technology "Ethereum", which is different from bitcoin, is the real reason to win Putin's favor
Ethereum is an open-source public blockchain platform with smart contract function. It mainly provides decentralized virtual machine to process point-to-point contracts through its special encrypted currency Ethereum, which is fast and unlimited in quantity. In other words, it is a monetary payment system, but their functions and purposes are different
if bitcoin is considered to be a shared global book that securely records all bitcoin bills. Then Ethereum is to maintain a shared computing platform, which can flexibly and safely run any program users want. Because of this, many countries and enterprises are developing how to use Ethereum technology in the real world.
Ethereum is an open-source public blockchain platform with smart contract function. It mainly provides decentralized virtual machine to process point-to-point contracts through its special encrypted currency Ethereum, which is fast and unlimited in quantity. In other words, it is a monetary payment system, but their functions and purposes are different
if bitcoin is considered to be a shared global book that securely records all bitcoin bills. Then Ethereum is to maintain a shared computing platform, which can flexibly and safely run any program users want. Because of this, many countries and enterprises are developing how to use Ethereum technology in the real world.
4. false
5. http://www.vfocus.net/blog/archives/images/Odyssey_5.torrent
Company
Company
6. Master of engineering and master of Engineering belong to different ecation systems. The ecation of master of engineering focuses on the training of engineering quality and engineering practice ability; Master of engineering is what we generally call unified recruitment of engineering graate students, focusing on basic theory learning and academic research
Master of engineering refers to the national master's examination held in January, with master's degree certificate and academic degree. Its purpose is to cultivate applied high-level professionals with solid theoretical foundation and adapt to the actual work needs of specific instries or occupations. Professional degree and academic degree are at the same level, with different emphasis on training specifications and obvious differences in training objectives. Academic degree is set up according to disciplines, which is oriented by academic research, emphasizes theory and research, and trains university teachers and researchers in scientific research institutions; The professional degree is oriented by professional practice, attaches importance to practice and application, and cultivates high-level talents who receive regular and high-level training in professional and technical aspects. The outstanding feature of professional degree ecation is the close combination of academic and professional. The people who get professional degree are mainly engaged in the work with obvious professional background, such as engineer, doctor, teacher, lawyer, accountant, etc., instead of engaging in academic research. Professional degree and academic degree have their own clear orientation in training objectives. Therefore, they are different in teaching methods, teaching contents, standards and requirements of degree awarding.
Master of engineering refers to the national master's examination held in January, with master's degree certificate and academic degree. Its purpose is to cultivate applied high-level professionals with solid theoretical foundation and adapt to the actual work needs of specific instries or occupations. Professional degree and academic degree are at the same level, with different emphasis on training specifications and obvious differences in training objectives. Academic degree is set up according to disciplines, which is oriented by academic research, emphasizes theory and research, and trains university teachers and researchers in scientific research institutions; The professional degree is oriented by professional practice, attaches importance to practice and application, and cultivates high-level talents who receive regular and high-level training in professional and technical aspects. The outstanding feature of professional degree ecation is the close combination of academic and professional. The people who get professional degree are mainly engaged in the work with obvious professional background, such as engineer, doctor, teacher, lawyer, accountant, etc., instead of engaging in academic research. Professional degree and academic degree have their own clear orientation in training objectives. Therefore, they are different in teaching methods, teaching contents, standards and requirements of degree awarding.
7. Headhunting is an intermediary specialized in recruiting senior talents. It seeks professionals and management talents with high ecation level, rich practical experience and outstanding performance. Headhunting is actually a talent intermediary, which is the role of "digging the wall".
8. There are a lot of institutions that are OK. For example: Huaqing vision, star maker
sharing embedded engineer's learning experience: it can be roughly divided into three stages: basic, advanced and top
entry embedded engineer
this stage is mainly the early entry process, mainly for new people who have not been in the instry for a long time. In fact, there is no shortcut to success, so laying a good foundation is the key. What to learn in embedded development mainly includes the following four aspects:
1. Circuit knowledge: first of all, you need to learn circuit, analog electricity, digital electricity, resistance, capacitance, triode, basic devices, amplifier circuit, integrated operational amplifier, sequential circuit, basic circuit can understand, otherwise, it must be cloudy to see the circuit diagram, it will not be able to carry out the follow-up work. The design and implementation of hardware procts, including device selection, schematic and PCB design, circuit debugging, all need a good circuit foundation
2. C language
C language is the most important programming language in embedded development. To have a deep understanding of this language, it is important not only to be able to write programs, but also to understand other people's programs. The most basic data types, arrays, pointers, structs, linked lists, file operations, etc. must be able to master the basic syntax and statements, otherwise you have to be able to distinguish between pointer arrays and array pointers
3. The introction of single-chip microcomputer is relatively simple. Through the study of single-chip microcomputer, you can be familiar with the hardware structure of single-chip microcomputer, including I / O port, AD conversion, communication (serial port, parallel port, I2C, can, USB, Ethernet, ZigBee technology, etc.), display (LED, LCD, etc.), control (PWM, etc.), data processing (processing or recognition of graphics, images, voice, video, etc.), Learning SCM well can lay a good foundation for using embedded system
4linux foundation
the source code and architecture of Linux are open, especially in embedded systems. Learning Linux will be of great help to the development of the system. Detailed understanding of Linux directory structure, basic commands, editor VI, compiler GCC, debugger GDB and make project management tools, shell makefile scripting and other knowledge, as well as the construction of embedded development environment
intermediate embedded engineer
after the first stage of learning, you can carry out embedded development work, but there is still a lot of knowledge to learn to advance, and this stage will also be the first watershed, making excellent embedded engineers stand out. Although there are only three items at this stage, they involve a wide range of knowledge, and it takes a lot of energy to learn them well
1. Linux Programming
system programming can directly talk with the kernel and the core system library to learn more about the Linux kernel. Mastering Linux system programming mainly improves the understanding of Linux application development and the ability of code debugging. As the development of network application is more and more extensive, through the development of Linux network, TCP / IP protocol, socket programming, TCP network programming, UDP network programming, web programming and other aspects, we can fully understand the development of Linux network application
2 data structure and algorithm data structure and algorithm are widely used in embedded driver, communication protocol and various engine development. Stack, hash table and syntax tree are used in language compilation; Queue, storage management table and directory tree are used in the operating system; Database system uses linear table, multi linked table and index table for data management, and so on
3. QT, DSP, FPGA
linux does not have its own interface. Learning QT programming can create all the functions required by art level graphical user interface, so as to better realize human-computer interaction control. Nowadays, users have higher and higher requirements for graphics and images, which requires DSP and FPGA technology to design and develop a better embedded vision system
Senior Embedded engineer
after learning the knowledge of the first two stages, you can already be competent for most of the embedded work, but there is still a certain gap from the big names. In fact, you have reached the second watershed. This part is more related to the system level, and it will be difficult to start without comprehensive knowledge
1 apart from Linux, embedded operating systems also include arm, wince, UC / OS II, VxWorks, uClinux, etc. different systems have different use environments. You need to learn to master each mole of the system to prepare for the construction of the underlying platform. Familiar with the characteristics of each operating system and the kernel transplantation of the system, to ensure that the operating system can run on a microprocessor or microcontroller. With the rapid rise of mobile intelligent hardware, the development of Android operating system is becoming more and more important
2 driver development driver design is a very important part of embedded Linux development. We should not only be familiar with the kernel mechanism of Linux, the interface between drivers and user level applications, but also master the concurrent operation of the system on devices. We should also have the basic knowledge of ARM hardware interface, be familiar with the resources of arm cortex processor, master the principle framework of Linux device driver, and the driver development of common Linux advanced character device, block device, network device and USB device
when you get to this position, you can be said to be a winner in life, and the real learning process is like a long practice, in which there must be all kinds of difficulties. Of course, embedded work needs more practice and experience accumulation. I believe that if you keep the cloud open and see the moon bright, you can also become an excellent embedded engineer. If you need embedded training, you can come to the star maker elite training camp of Huaqing to train middle and high-end embedded engineers.
sharing embedded engineer's learning experience: it can be roughly divided into three stages: basic, advanced and top
entry embedded engineer
this stage is mainly the early entry process, mainly for new people who have not been in the instry for a long time. In fact, there is no shortcut to success, so laying a good foundation is the key. What to learn in embedded development mainly includes the following four aspects:
1. Circuit knowledge: first of all, you need to learn circuit, analog electricity, digital electricity, resistance, capacitance, triode, basic devices, amplifier circuit, integrated operational amplifier, sequential circuit, basic circuit can understand, otherwise, it must be cloudy to see the circuit diagram, it will not be able to carry out the follow-up work. The design and implementation of hardware procts, including device selection, schematic and PCB design, circuit debugging, all need a good circuit foundation
2. C language
C language is the most important programming language in embedded development. To have a deep understanding of this language, it is important not only to be able to write programs, but also to understand other people's programs. The most basic data types, arrays, pointers, structs, linked lists, file operations, etc. must be able to master the basic syntax and statements, otherwise you have to be able to distinguish between pointer arrays and array pointers
3. The introction of single-chip microcomputer is relatively simple. Through the study of single-chip microcomputer, you can be familiar with the hardware structure of single-chip microcomputer, including I / O port, AD conversion, communication (serial port, parallel port, I2C, can, USB, Ethernet, ZigBee technology, etc.), display (LED, LCD, etc.), control (PWM, etc.), data processing (processing or recognition of graphics, images, voice, video, etc.), Learning SCM well can lay a good foundation for using embedded system
4linux foundation
the source code and architecture of Linux are open, especially in embedded systems. Learning Linux will be of great help to the development of the system. Detailed understanding of Linux directory structure, basic commands, editor VI, compiler GCC, debugger GDB and make project management tools, shell makefile scripting and other knowledge, as well as the construction of embedded development environment
intermediate embedded engineer
after the first stage of learning, you can carry out embedded development work, but there is still a lot of knowledge to learn to advance, and this stage will also be the first watershed, making excellent embedded engineers stand out. Although there are only three items at this stage, they involve a wide range of knowledge, and it takes a lot of energy to learn them well
1. Linux Programming
system programming can directly talk with the kernel and the core system library to learn more about the Linux kernel. Mastering Linux system programming mainly improves the understanding of Linux application development and the ability of code debugging. As the development of network application is more and more extensive, through the development of Linux network, TCP / IP protocol, socket programming, TCP network programming, UDP network programming, web programming and other aspects, we can fully understand the development of Linux network application
2 data structure and algorithm data structure and algorithm are widely used in embedded driver, communication protocol and various engine development. Stack, hash table and syntax tree are used in language compilation; Queue, storage management table and directory tree are used in the operating system; Database system uses linear table, multi linked table and index table for data management, and so on
3. QT, DSP, FPGA
linux does not have its own interface. Learning QT programming can create all the functions required by art level graphical user interface, so as to better realize human-computer interaction control. Nowadays, users have higher and higher requirements for graphics and images, which requires DSP and FPGA technology to design and develop a better embedded vision system
Senior Embedded engineer
after learning the knowledge of the first two stages, you can already be competent for most of the embedded work, but there is still a certain gap from the big names. In fact, you have reached the second watershed. This part is more related to the system level, and it will be difficult to start without comprehensive knowledge
1 apart from Linux, embedded operating systems also include arm, wince, UC / OS II, VxWorks, uClinux, etc. different systems have different use environments. You need to learn to master each mole of the system to prepare for the construction of the underlying platform. Familiar with the characteristics of each operating system and the kernel transplantation of the system, to ensure that the operating system can run on a microprocessor or microcontroller. With the rapid rise of mobile intelligent hardware, the development of Android operating system is becoming more and more important
2 driver development driver design is a very important part of embedded Linux development. We should not only be familiar with the kernel mechanism of Linux, the interface between drivers and user level applications, but also master the concurrent operation of the system on devices. We should also have the basic knowledge of ARM hardware interface, be familiar with the resources of arm cortex processor, master the principle framework of Linux device driver, and the driver development of common Linux advanced character device, block device, network device and USB device
when you get to this position, you can be said to be a winner in life, and the real learning process is like a long practice, in which there must be all kinds of difficulties. Of course, embedded work needs more practice and experience accumulation. I believe that if you keep the cloud open and see the moon bright, you can also become an excellent embedded engineer. If you need embedded training, you can come to the star maker elite training camp of Huaqing to train middle and high-end embedded engineers.
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