Ethereum

This is the runtime environment for smart contracts. Every node in the network executes code (typically written in Solidity) and stores the resulting state on the blockchain.

To execute operations or transfer assets, users must pay a transaction fee called "gas" in ETH. This fee compensates validators for the computational energy required to process the request. ethereum

Unlike Bitcoin, which primarily serves as a digital currency, Ethereum functions as a "distributed computer". This is the runtime environment for smart contracts