What does digital currency POC technology mean

1.

For many people, the concept of digital currency is a mystery. But there is no doubt that digital currency is different from virtual currency

At the same time, digital currency is different from electronic payment. In the actual use experience, digital money and electronic payment may feel similar, but they are still quite different in essence. Before digital currency, the financial instry has been highly informationized. Such as Internet banking, WeChat, Alipay and so on pay the popularization of electronic technology, physical cash accounts for only a very small part of the total circulation of money. In spite of this, because the money used in the transaction comes from the bank account, it actually corresponds to the banknotes

2.

Digital currency is an unregulated and digital currency, which is usually issued and managed by developers and accepted and used by members of a specific virtual community. More generally speaking, digital currency is actually a commodity

just like gold, it took more than 200 years to be graally recognized by the world. In the early days, many people questioned gold's ability to store value. If we take digital currency as a substitute, people's questioning attitude towards gold in the past is equivalent to many people's attitude towards digital currency now

extended data

digital currency is a balance between financial security and innovation ability. Financial instry should have clear access threshold. Digital currency involves finance, so it must have clear access threshold. The enterprise qualification of blockchain and digital currency needs to be reviewed and an access system set. One of the core of supervision is that blockchain enterprises must have qualified technical personnel

for example, enterprises of different levels in the construction instry need different levels and numbers of registered structural engineers to ensure the safety of buildings and bridges, which can also be used for reference in the supervision of digital currency. In addition, investors need to refer to the requirements of the "measures for the appropriateness of securities and futures investors" issued by the CSRC, and only those who meet certain conditions can participate in the investment

3. I'm too young to remember the birth of the Internet. When the Internet was booming, I was in high school, a little confused about what happened. At a family party, when my cousin bragged about how much money he made from buying and selling domain names, I thought it was stupid
it's not a reality. Up to now, I still think it's stupid to make money by buying and selling domain names. I know it happens sometimes. It's like a high-risk, low return investment
as a result, the Internet did. Now, 20 years on, domain names are cheap, and search engines make them brand specific Note: the author means that the convenience of search engines makes domain names cheaper and cheaper. Domain names are only related to brands.)
What does this have to do with the value of bitcoin
this is an example of how people's views on value change with the development of technology
at this point, most people see bitcoin as money. The chairman of the US SEC said, "yes, that's how drug gangs use it. Everyone I know thinks so.". It's called "bit coin" for a reason
bitcoin maximalists call it hard currency, critics call it fake money, and veteran players call it cyber currency
W bq89998 push the latest currency from time to time to ensure the minimum 10 times

4. In fact, the technical systems corresponding to various digital currencies are quite different
moreover, the development of digital currency is still immature.

6. POC (PTT over cellular) is also called PTT (push to talk) function. PTT: push to talk is a new mobile technology, which can quickly make "one-to-one" or "one to many" calls, just like using a walkie talkie. This function is suitable for small and medium-sized enterprises that need frequent intermediary contact and indivial users who need to chat with friends and family
● mobile phone requirements: ordinary mobile phones cannot use PTT function. However, some mobile phones that support Qualcomm BREW can support PTT technology through software upgrade in the future
● usage: after opening PTT, you can use your mobile phone to realize "one-to-one" or "one to many" communication with the selected group by pressing the corresponding button of the mobile phone. Nextel's PTT service, an American CDMA operator, requires the owner to hold down the button before he can speak. When he lets go, the other party hears a "tick" before he can speak
● application: one click one to many feature, suitable for colleagues who need to coordinate working relationship, such as express company, residential security, etc. Push to talk has the feature of "push to talk". Friends can chat with each other like QQ and MSN through push to talk. They only need to send a short message each time
● scope: unlike the walkie talkie, which can only talk in close range, the push to talk service can reach the place that can be covered by the mobile network, and there is almost no distance limit
● billing: PTT services can be billed according to the ration, time period and traffic, or monthly, depending on the operator. According to the business precedents of Qualcomm and Nextel in the United States, Nextel adopts a monthly contract system, with a cost of US $15-30
● interconnection: the possibility of using push to talk across operators is very small. At present, operators, equipment providers and mobile phone manufacturers have not issued unified standards. The PTT services of China Mobile and China Unicom are based on GPRS network and CDMA1X network respectively. So far, the operators have not tried to interconnect
● call delay: for PTT service based on GPRS, the theoretical call delay time is 1 to 2 seconds, and it may be as long as several seconds e to condition change; Theoretically, the access delay of PTT service based on CDMA1X is about 3 seconds, and the call delay is about 1 second
● roaming: the automatic registration of PTT ring inter city roaming is still a problem. If a member of a PTT group roams from city a to city B, the system must go back to city a to register with the original group partner. In this way, the process of information connection will be extended.