Before I start teaching you what Ethereum mining rigs, it's important to understand what we mean by mining Ethereum or mining Ethereum.

Ethereum is the network of  the blockchain-based cryptocurrency, Ether. Blockchain is like a bank transaction record. Of course, you need to trust your bank to keep these transaction records up to date and make them as accurate as possible. With cryptocurrencies, you don't have to risk your trust in a single entity. You only need to trust open source peer-reviewed code. It is no coincidence that the first blockchain-based digital currency was created in the immediate aftermath of the 2008 monetary crisis!

To ensure that no one cheats on the system and that everyone spends one Ether [...]