Golden Seashell virtual currency
in terms of user groups, Linux is a developer centric operating system, while windows is a consumer centric operating system, which is the fundamental difference between the two operating systems. In short, the choice between the two systems depends on whether you develop them or use them as consumers
the advantages and disadvantages of Linux and windows can be summarized as follows
1. Linux can see the source code, but windows can't
the direct result of this point is that the required kernel moles can be tailored and customized in special applications, which is quite beneficial to the optimization of advanced system kernel management and the development of drivers. In addition, because the code is visible, there is no need to worry about malicious functions or backdoors, which is beneficial to the use of military and government enterprises. In addition, when there is a serious problem in the system, you can modify the code by yourself, or you can compile and use it after a few K patches. For windows, you have to wait for a Microsoft patch
2. Linux command line is powerful and can do anything. Windows also has a command line, but it is an accessory
the command line is the foundation of Linux. Even if you are not satisfied with some commands, you can modify or write your own commands. The advantage of the command line is that it is repeatable. To know exactly what the command line is, you can visit old boy ecation. If you want to tell others how to do a thing, you can send a command line to it. If you want to do a thing that you did before again, you can call up the historical command record and execute it again. A lot of things that need to be done regularly are written into scripts. If you set a crontab timer, it's done. In addition, this also ensures that you do the same thing with the same command line
3. Open source and highly customizable
the original intention of open source is not for freedom, but for customization. At & T UNIX has always been righted, but the source code is still available, so that users can modify it according to their needs. Most of the software and systems appreciated by the Linux community follow the same rules - they should be able to adapt to different environments of different users, easily change their behavior, and easily integrate with different environments. Instead of assuming that others are in line with your needs, give them the freedom to customize the system
4. Decentralized
software development also predestinates that the interface and form of the system are not unified because everyone likes to invent wheels. And everyone's wheel is more or less suitable for themselves and the community, rather than everyone. In the Linux environment, no one can force everyone to use their own wheel (except kernel developers, but in fact many distro also have patches on the kernel). Therefore, instead of formulating a practice, Linux allows users to choose a way of life
you can see that there are a large number of distros in the Linux ecosystem. Different distros have different init modes, different package managers and installation strategies; Everyone's habit of using different VCs, different shells and different editors is the embodiment of more choice philosophy
5. Linux is based on the network and was born in the network
when you connect to SSH remotely, you can easily control the Linux server thousands of miles away. As long as you have the corresponding permissions, it's almost the same as sitting in front of a physical machine. Even if the network speed is poor, it's just some encrypted characters being transmitted, and the bandwidth required is very small.
2, the first forum, the high-level forum, the 2030 core vision, the 2030 vision, the Fifth, the Asian forum, the Asian forum, the "Asian Games", the "Asian Games", the "Asian Games", the "Asian Forum", "the Asian Forum", "the Asian Forum", "the Asian Forum", "the Asian Forum", "the Asian Forum", "the Asian Forum", "the", "the". Nuclear safety
8, sharing economy
9, healthcare reform
10, terrorist attack
In the process of formation and development of ancient Chinese currency, it has experienced five extremely significant evolutions:
1, the evolution from natural currency to artificial currency
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3. The evolution from local coinage to central coinage4. From the weight of documents to Tongbao and Yuanbao
5. The evolution from metal currency to paper currency
From the spring and Autumn period to the Warring States period, China has established four monetary systems: cloth coin, knife goods, ant nose money and ring money. Later, it went through the Qin, Tang, Han, Wei, Jin, southern and Northern Dynasties, until December 1, 1948, the people's Bank of China was established and issued the first set of RMB
knowledge development:
commemorative coin
ordinary commemorative coin is RMB with specific theme and limited issue. Since the people's Bank of China issued the first set of ordinary commemorative coins in 1984, it has issued 63 sets of 75 ordinary commemorative coins, with a total circulation of about 850 million. The denominations range from 1 jiao, 1 yuan, 5 yuan, 10 yuan, 50 yuan and 100 yuan, which condenses the glorious achievements and major historical events of the people's Republic of China over 50 years into the square inch of commemorative coins
quick coin be repaid with WeChat? It can be recharged P>
recharge method:
1, open Kwai software. p>
7. Select wechat payment and enter the payment amount and password to make wechat payment
Shellfish is a kind of shellfish growing in tropical and subtropical shallow sea. Because of its small size, bright color, strong rability, moderate size, easy to carry, easy to count and other characteristics, with the development of social economy and the formation of commodity society, natural shellfish graally act as the general equivalent of commodity exchange
there was no currency in the period of ancient emperors. In ancient times, human life was mainly about fishing in the water, hunting near the mountain, living in the wild and drinking blood. Cooked food was known only when Suiren invented drilling wood to make fire. This stage is the era of fishing and hunting. When Fuxi wrote eight trigrams to make a contract, Shennong taught the people to grow grain and raise five livestock, a market was set up. The market was set up in the middle of the day, trading and retreating
In the period of Yao and Shun before the Xia Dynasty, the natural shellfish had changed from ornaments to fixed coins, which were used in parallel with beads, jade, knives, cloth, treasury, Shu and copper coinssince then, until the bronze age, coins have been made of bronze, and most of the coins in this period were made of bronze. In the Bronze Age of Xia Dynasty, money came into being as exchange, preservation and calculation of wealth. It has been 5000 years since money came into being
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extended data:
the history of human beings is similar to the history of money, which has gone through five stages
the first stage: exchange things for things. That is, the stage of physical currency. Most of the human beings in this stage are in the primitive society, because there is no unified culture, unified measurement, but they have the same physiological needs. So between tribes, it's about exchanging things for things, exchanging my stone tools for your prey. Slowly, there are equivalent goods, such as shells, cloth, clothing, livestock and so on
the second stage: gold and silver bar stage. With the growth of tribes and the expansion of the scope of human activities, the communication between human beings has graally become more and more. They found that bartering was no longer enough for their daily needs. Because grain, livestock, shells and other natural defects exist, either too much, or it is not easy to preserve
human beings began to look for rare items as equivalent exchange. It was at this time that gold and silver established their historical status. At this stage, human beings broke away from the primitive society and began to form large tribes and even the rudiment of the state< The third stage: coinage. This stage of human civilization has been vigorously developed, and entered the feudal society stage. The Empire controlled the making of coins and the lifeblood of economy. It was found that gold bars and silver bars were not easy to measure, so the Empire forged a unified currency to make the transaction more fair. Human civilization has been developed
the fourth stage: paper money stage. In China, banknotes have appeared for a long time, but basically they can't circulate. Because there was no anti-counterfeiting technology in ancient times, the real banknotes appeared after the steam revolution. Human beings entered the instrial stage and were completely freed from the heavy labor force. Since then, science and technology have changed with each passing day, and human society has entered a state of high civilization. The feudal rule and monarchy reached the end and finally disappeared
the fifth stage: electronic currency stage. This is the development stage in the past ten years. Now people go out almost without cash. The phone completes the deal with a single click. This is of epoch-making significance in the history of mankind. The virtualization of money also means that human beings have officially entered the stage of docking virtual society and real society. This was unthinkable before< br />
money is a kind of power, money can make the devil push the mill, a person with money, can enjoy the power above the ordinary people, although golden, but decline and hypocrisy. Money is the main gene of pleasure in reality, especially the tool for women to enjoy themselves, even if they lose everything
money is mother-in-law's ruler. This ruler has unique magic. The water rises and the boat grows high. The size is heavy day by day. When you marry your daughter-in-law, you will lose your fortune
what is money? Money is the dirt on people, wash away one layer after another. Money is a son of a bitch. Spend it and earn it. Money is life-saving Daoxiang, money is the panacea of the body. Money is a livelihood project, money is national defense construction. Money is the head of all evils, and money is the source of corruption. Money controls people's brain, money corrupts people's soul
have money to play all over the world. It's hard to move without money. It's a torture day and night. Money can dominate everything, money can make everything. The latest cutting-edge technology and the most high-end precision instruments are inseparable from money. With money, the country will prosper through science and technology, the instry will be developed, the agriculture will be revitalized, and the market will be prosperous. With money, the country can be rich, the people can be strong, and the society can be stable. Only when we have strong national strength can we stand on the world stage and talk freely. Only with absolute voice can we be invincible in the forest of the world forever
money is a cheap word behind the word "gold". After thousands of years of resurgence, money has been worshipped by many people. Who can jump out of the three realms and not in the five elements? Even if you kneel down and kowtow, I'm afraid it's not money. Can only be a whore, and set up a chastity archway
money is the lubricant. There is a long-term relationship between people, but we have to rely on a better lubricant money to maintain emotions and rece friction. People say that money is the word of the Lord
money is also useless. A house that money can buy can't buy a happy family. Money can buy jobs, but not filial piety. Money can buy food, but not appetite. Money can buy good medicine, but not health. Money buys power, and power makes money. Power and money is a sword that kills people without blood. They work in collusion all the way to harm the world. Money can buy heart and soul, but not conscience
what is money? Money is a man's face, treat dinner, not stingy, do things, have confidence! Money, what is it? Money is a woman's face, clothes, makeup, exquisite fashion, behavior, show charm
what is money? Money is the gold in paper, which can support the family, buy goods, give the family a stable life, and make themselves full of confidence. Money, what is it? Money is an instrument for measuring people. Can distinguish between true and false, can witness the truth, can see who is a sincere friend
what is money? Money is a necessity to protect life, and money is an indispensable commodity. Money, food and clothing, no money, life is hard. Money can bring you material satisfaction, but not spiritual filling.
Business is an organized behavior of providing goods and services needed by customers. Most of the commercial activities make profits by selling goods or services at a price above the cost. For example, Microsoft, Sony, IBM, Lenovo and general motors are typical representatives of profitable commercial organizations
however, some commercial activities are only to provide the basic funds for the operation of business, which are generally called non-profit, such as various foundations, Red Cross and so on. It is generally believed that commerce originates from the exchange behavior of barter in primitive society. Its essence is exchange, and it is an equivalent exchange based on people's understanding of value
commerce rose in the pre Shang period of the Shang state, and it was a social activity in the form of barter in the early stage of its formation. Later, it developed into an economic activity in which money was used as a medium for exchange, so as to realize the circulation of goods. Modern commerce is divided into offline and online, which greatly improves the efficiency of trade
extended materials:
Chinese ancient commerce originated in the pre Shang period, initially developed in the Qin and Han Dynasties, and further developed in the Sui and Tang Dynasties
the origin of Commerce:
after King Wu of Zhou destroyed the Shang Dynasty, some of the adherents who lost their land in order to make a living ran around doing business. As time went on, they formed a fixed occupation. Zhou people called them "businessmen" and their occupation "commerce"
The termhas been used to this day. The nobility of Zhou Dynasty couldn't do business in the business of buying and selling. At that time, the common people couldn't do business when they wanted to farm land. The business of buying and selling commodities was needed by the society. Over time, the business of buying and selling commodities became the main business of the adherents of Shang Dynasty
With the development of national integration and commodity economy, the minority nobles of Zhou Dynasty also began to do business. In this way, merchants graally lost the derogatory meaning of "stubborn people" and became the professional name of commodity trading