Any computer that connects to the RNG network is called a node. Nodes that fully verify all of the rules of RNG are called full nodes.
Full nodes download every block and transaction and check them against RNG’s consensus rules. Here are examples of consensus rules, though there are many more:
If a transaction or block violates the consensus rules, then it is absolutely rejected, even if every other node on the network thinks that it is valid. This is one of the most important characteristics of full nodes: they do what’s right no matter what. For full nodes, miners actually have fairly limited power: they can only reorder or remove transactions, and only by spending a lot of computing power. A powerful miner is able to execute some serious attacks, but because full nodes rely on miners only for a few things, miners could not completely change or destroy RNG network.