Ethereum is a decentralized platform that runs smart contracts: applications that run exactly as programmed without any possibility of downtime, censorship, fraud or third party interference.
Ethereum uses a public blockchain similar to bitcoin, but also enables advanced programmable transactions types.
What is Ether?
Ether (ETH) is the primary currency on the Ethereum network. Much like bitcoin (BTC), it is created by computerized mining, and can also be used in other transactions called "Smart contracts.’’
Who created Ethereum?
Ethereum was proposed by Vitalik Buterin in a white paper.
How is Ethereum different than Bitcoin?
Bitcoin was conceived as a "a purely peer-to-peer version of electronic cash," focusing on payments, and value transfer as its primary purpose.
Ethereum extends the ideas bitcoin is built on in order to provide a more generalized computational platform. This enables the creation of smart contracts, decentralized applications, and even decentralized governance applications.