With the help of reference books, a panel of seven experts and a specialist journalist, some of them will be elucidated here in a brief and concise manner.Buy best-selling books online
The 5G standard is the fifth generation of mobile networks. Its evolution began a few years ago and is now spreading worldwide at an accelerated pace. This successor technology to 4G offers significantly higher transmission speeds and has much shorter delay times. This means that more sensors, software and other fantuan data technologies can be connected simultaneously than before.
And what does blockchain mean ? “In very simple terms, a blockchain is nothing more than a database,” explains Caspar von Allwörden, editor of the German specialist magazine t3n. The difference is that it is stored in a decentralised manner on many computers.
Cryptocurrency money transfers, for example, are stored on a blockchain: “Person A sends person B the sum X.” Because the transactions are stored identically on many computers, they are protected against forgery.
A blockchain could also store vaccination data, for example, or contracts between people or companies. Each computer participating in the blockchain becomes, in principle, another node in the network and obtains a complete copy of the database. In this way, transactions are verified and documented.
The name "blockchain" comes from the way it works: transaction data is collected in blocks and linked together.
Bitcoin is a digital currency, in fact, the first and largest cryptocurrency by market capitalization based on the Bitcoin blockchain. Users create new bitcoins with the help of mathematical processes, which is called "mining. "
“There is a fixed number of Bitcoins, and the more that are created, the more expensive it is to create more,” says Caspar von Allwörden. Although it is digital, Bitcoin is a limited resource; there can be a maximum of 21 million of them. “That makes it interesting for speculative purposes.”
Bitcoin transactions are difficult to assign to individual persons. Therefore, the cryptocurrency is also often used to make payments in illegal contexts.