Node

A node in blockchain technology is a computer or device that helps operate and maintain a blockchain network. It plays a key role in validating transactions, storing blockchain data, and propagating information across the network.

Types of Nodes:

• Full nodes – Store the entire blockchain, ensuring security and integrity.
• Light nodes – Download only block headers for efficiency.
• Mining nodes – Use computational power to solve cryptographic puzzles and add new blocks.
• Masternodes – Found in specific networks, they offer extra services like instant transactions and enhanced privacy.

Nodes communicate to keep the blockchain decentralized, secure, and up to date.