There was a time when a computer in most cases consisted of a big beige box that you certainly did not want to show off or which took up a lot of space on your desk. Those days are gone and today we have a lot more variety both how computer looks and how big they are. Zotac is a company that for quite some time have been pumping out smaller mini-PC's under their ZBox brand and today we are taking a look at their new round ZBox Sphere OI520.