Ethereum

About

Ethereum (ETH)-another one decentralized system .Its advantage over the rest of the availability of smart contracts.It supports a modified version of Satoshi Nakamoto (BTC)consensus via transaction based state transitions:applications that run exactly as programmed without any possibility of downtime, censorship, fraud or third-party interference.

Smart contracts is already another topic.

Ethereum Blockchain

which using ethereum platform .Ether can be transferred between accounts and used to compensate participant mining nodes for computations performed.

Platform

Same it’s decentralized Kickstarter,i.e. Everybody can create application who will use the ethereum Blockchain .Creator can change and edit all tittles and scripts .

Ethereum use the smart contracts who written on different computer language Smart contracts are high-level programming abstractions that are compiled down to EVM bytecode and deployed to the Ethereum blockchain for execution.

EVM(ethereum virtual machine )-Node which run in network use EVM .It is sandboxed and also completely isolated from the network, filesystem or other processes of the host computer system.(Its another topic)

In short, Ethereum is a public, open-source, Blockchain-based distributed software platform that allows developers to build and deploy decentralized applications.