You probably understand what Ethereum is, but just to make sure that we are on the same page, it's important that you have some background knowledge about what Ethereum really is in order to progress further without too many distractions.
Beyond Ethereum
Explaining Ethereum
Ethereum is, first and foremost, a blockchain. Ethereum is a technology that runs on many computers and provides its consumers with a guarantee that they are trusting a solid system that will work as expected.
"Ethereum is the world computer."
-Vitalik Buterin
To learn more about the core Ethereum ideas, check their official website: https://ethereum.org.
A web of thousands of computers connected all over the world are called nodes and they...