You can think of Ethereum as a programmable blockchain. Unlike bitcoin blockchain that gives a predefined operations - limited to bitcoin transactions, Ethereum allows users to create their own customized operations or task they need to establish. In other words, Ethereum is an open software based on blockchain technology that enables developers to build and deploy decentralized applications that includes but not limited to cryptocurrencies. It ensures that the “customized operations” or “smart contracts” are replicated and processed to all computer networks.
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