http://coinmamailtcrg7fw6uorut3d35bk35rtmntkrtb4fgeov6pefvfutqd.onion/blog/what-is-ethereum-eth-and-how-does-it-work
It’s also “the world computer,” or a globally-accessible platform for distributed computing, and it contains its own built-in currency (ETH or ether), which is used for the same purposes as any other cryptocurrency, but also as “fuel” to run the code. So, not only is ETH used to store, trade, and transfer value, it also provides an environment for a multitude of apps, many of which contain a financial component.