What is cloud mining?

This is the original wallet, which contains the entire block number. The size of this record is now 70 GB. As of the date of writing, the computer containing this wallet must be of acceptable specifications. SSD Harddisk is preferred for keeping the wallet. HardDisk SSDs are faster and closer to operating than regular Hardisks. This device must be constantly connected to the Internet, keeping in mind that Port 8333 should be open on the Internet. With Port 8333, this Node is able to connect with the rest of the Nodes deployed globally and thus becomes part of the Block Chain

The original portfolio is the official currency portfolio, which is a program that can be installed on a computer, for example:
If you downloaded the etherium wallet and then opened Port 30303 through your device to the Internet and vice versa and waited until the wallet has downloaded all the block chain restrictions (up to the moment of writing) 13 GB, you become Etherum-Full-Node and become one of the people who document The general record of this currency, and this is the basis of decentralization.
A firewall must be placed in front of the device to protect it from any hacking attempt. Even mining equipment has to be protected by a firewall

Full-Node: Save the public record.

The usefulness of running the Full-Node: In the configuration, no use, in the currencies that apply the POS system is useful, to see what, please see the types of mining below.