This guide will help you to get a better understanding of what Ethereum is and how Ethereum works. You will find a wealth of information on this very useful and game changing system without having to sift through a bunch of technical jargons. What is Ethereum? A World Computer Ethereum is basically a "world computer". Remember the days of the mainframe? Well Ethereum is basically like a single computer that the entire world can use. It carries only a single processor internationally. It doesn't require multi-threading or parallel execution. Ethereum, also has an amazing memory capacity as, it carries as much memory as it requires. Alas! There will be no need to get IT to bump up your server memory or buy additional memory card with Ethereum.