A node is a computer connected to other computers which follows rules and shares information. A 'full node' is a computer in Bitcoin's peer-to-peer network, which hosts and synchronises a copy of the entire Bitcoin blockchain. Nodes are essential for keeping a cryptocurrency network running.

Nodes are components of a blockchain network, facilitating decentralized transactions. They aim to validate and process transactions without the need for a centralized entity, striving to ensure the integrity and security of the network.

How do nodes work together to maintain the Blockchain? Each node in the Blockchain is a separate entity that operates independently and communicates with other nodes in a peer-to-peer network. The primary function of nodes is to verify transactions and add new blocks to the Blockchain.

Node operators can earn money through block rewards and transaction fees. Block rewards are given for successfully validating a new block of transactions and adding it to the blockchain.