Does Bitcoin have a central server, and what form does Bitcoin exist? Who runs the server?

Bitcoin is a distributed ledger with no core servers and only 6 blocks recorded.

Bitcoin is a distributed ledger and does not have a core server, as long as there are 6 blocks that are recorded, then the transaction records and accounts are legitimate.

Uniqueness is that your account is unique. Each user only owns a portion of all user account records.

Less than 1 bitcoin can also be traded, there are bitcoin exchanges, people take commissions, you can exchange with any existing currency.

The account is bearer, just a string of **.

The essence of money is a credit certificate, you can understand it as an IOU, Bitcoin itself is not a currency, but its concealment and decentralization can be used as a credit certificate for cross-border settlement, evading various rights supervision, and facilitating money laundering, so it has become a currency.

The calculation of bitcoin is mainly to test the graphics card, graphics card and CPU due to different instructions, CPU is not suitable for mining bitcoin, graphics card efficiency is dozens of times to hundreds of times that of CPU, if you are planning to use the server area without a separate display to dig, it is estimated that you will die on the day you die, and you will not see a bitcoin to dig out, now advanced graphics card, on average to open uninterrupted for 2 years before it is possible to solve a problem, so as to get 25 or 50 bitcoins, however, it is only a theory, if you are unlucky, You may not be able to see how long you can mine, and now the professionals who mine bitcoin are at least controlling thousands of machines or even tens of thousands of machines working 24 hours a day, and the electricity bill alone costs tens of thousands of dollars a day, and it is really difficult for ordinary people to make this fortune.

It is recommended to mine secondary currencies such as Ya Coin or Litecoin, and then exchange them for Bitcoin, and the income is much higher than that of Bitcoin directly mined Bitcoin.

Litecoin, Yencoin.

If the graphics card is not good, you can mine Ya coin, Ya coin is CPU mining, and it is better to use CPU without a good graphics card.

Wait slowly, ordinary machines may not dig one in a month. Mining is not recommended, you can speculate on Bitcoin, of course, high risk and high return.

Can an ordinary computer mine bitcoins, and how many years does it take to mine one? Today I know it.

For example, when choosing a server, many enterprises will consider what is the difference between a blockchain server and a traditional server? The following is a brief analysis.

To be precise, blockchain is a technical model, and a server is a tangible hardware resource, and there is no comparison between the two. If you want to talk about the difference, you can also look at the difference and connection between the two.

To say the difference between the two,The biggest feature of blockchain is decentralization

For example, the most typical application of blockchain, Bitcoin. Bitcoin is independent of any third-party decentralized currency, there is no centralized issuer, generated by the calculation of network nodes, anyone can run Bitcoin client software on the computer to participate in the production of Bitcoin, no matter where they are, anyone can mine, buy, **.

All nodes of the blockchain are distributed in different places, and each node is maintained and managed by itself, which does not require a large area of centralized construction, and also needs special personnel to manage and maintain, which can make full use of idle resources. Due to the distributed nature, the system is very difficult to destroy, such as Bitcoin, even the most powerful people or organizations in the world today cannot destroy the Bitcoin system generated on the blockchain.

Traditional servers are centralized services

Traditional centralized servers, such as WeChat, Alipay, etc., are responsible for providing services to all clients by the server behind their companies, and the clients get services from the server. If their servers are attacked and paralyzed, then your WeChat and Alipay will not be available. For example, on May 28, 2015, Ctrip.com was attacked by an unknown server, and its web version and mobile app could not be used normally.

Does the blockchain also need a server?

To be specific, blockchains are also divided into public chains, private chains, and consortium chains. The most essential difference between these three is that they have different degrees of decentralization.

That is, the public chain is completely decentralized, and the Bitcoin mentioned above belongs to the public chain, and the private chain and the alliance chain are not completely decentralized, and there is still a shadow of centralization.

As mentioned above, blockchain is a technical model, and server is a tangible hardware resource, and the two will inevitably have combined applications.

For example, the combination of storage type servers and blockchain can use cryptography to ensure the security of data transmission and access, so as to make the storage server data more secure.

All public cloud vendors have clearly stipulated that the use of cloud servers for mining is not allowed, otherwise it will be banned;

At present, the GPU servers provided by various public cloud vendors are relatively expensive, which is not cost-effective in terms of cost performance, and it is better to use special chips;

Of course, there are hackers who invade the server through vulnerabilities, implant mining programs and scripts on it, and carry out mining operations, but this itself is illegal.

There is no particularly good solution to this situation.

If the data is not important, then directly format the file server to remove the virus; If the document is important, then you have to seek out a cybersecurity professional through other technical means to see if you can solve it.