Nodes in the blockchain’s structure are equivalent to the blockchain. Nodes used to track registered transactions. The user who wants to follow-up can choose the type of node that is suitable for his purpose.
Nodes are divided into 2 as of their structure. They are a full node and light node. A full node is a structure that contains all of the full transaction histories. It is possible to follow up on the full node, no matter how many transactions occurred until the current day. The user who wants to run the full node should set the storage conditions (space and memory status) well due to the abundance of data. Unlike the full node, the light node represents transactions performed in a partial area. The light nodes, which perform the approval processes on a reporter node, get the result by making it to a different and safe node. https://www.icrypex.com/faq Light nodes do not take as much space as full nodes due to their nature.
In general terms, nodes are installed for security purposes. A node containing any cryptocurrency will be sufficient to maintain the integrity of that cryptocurrency. Investors and miners who want to make sure that the cryptocurrency works correctly work on the full node and do not charge for it. Miners mostly run full node due to their verification tasks. However, not every user who runs a full node is a miner. The procedure performed and the purpose of the transaction is different. The determining factor of ownership is also nodes. For this reason, both security and how much crypto money people have been tracked by nodes. These nodes created as required by Distributed Notebook Technology can be found in various parts of the world. Thus, the risk is minimized. In other words, since it will not be possible to destroy thousands of nodes at the same time, it will be possible to produce a new one even if there is one remaining node.