Blockchain network

Bunch of computers participating in a blockchain network.

A network can be public (anyone can participate like in the Ethereum blockchain) or private.

Types of nodes:

• Miner; Creating new blocks
• Full node; Checking block validity using all transactions and blocks.
• Lightweight node; Checking chain integrity using only the block headers.

In a private network you don need mining, you can just appoint one or more node that can create new blocks.