Ethereum is a cryptocurrency that operates on a consensus method based on proof of work. Miners utilise special machines and algorithms to validate transactions, mine blocks, and receive rewards in native coins while also creating new coins for the currency.
Ethereum 2.0 uses a proof-of-stake system. There are no miners or machines in this system; instead, validators validate the transaction in the proof of stake mechanism. These validators are chosen by network contributions or stakes; for example, to become a validator on Ethereum, you must invest 32 ETH in the blockchain.