Geth, short for Go Ethereum, is the official Go language implementation of the Ethereum protocol. It allows users to run an Ethereum node, enabling them to participate in the Ethereum network by validating transactions and blocks.As a full client, Geth can be used to synchronize with the blockchain, thereby supporting the entire network. Users can run it in different modes: full node, which downloads the entire blockchain; light node, which maintains only essential data; and archive node, which saves everything from the inception of Ethereum.Beyond just connecting to the network, Geth also offers a command-line interface and JavaScript console, helping developers interact with smart contracts and deploy decentralized applications (dApps). Geth is widely used due to its efficiency, robustness, and support from the Ethereum community. It can be run on various operating systems, including Windows, macOS, and Linux, allowing users to tailor their Ethereum experience according to their needs.