Over the hills, across the stone bridge, past the giant pony, around the lake of questionable test, and beyond the giant rainbow barrier sits a work of great artifice on a grey plain. Far larger than any single inhabitant of this virtual world, the contraption is a complete, working computer, run entirely within the rules and universe of Minecraft. The hard drive stores up to 4 kilobytes of data, and it is covered in torches to keep zombies from attacking it at night.