R. Fogarty writes: ? Knowing how to program a computer may seem like a far-fetched dream for ?ordinary? people. After all, don?t you have to be some kind of genius to manipulate the will of a machine and have it do your bidding?? Well, with Raspberry Pi, no! And most beneficial of all you?ll be in geek heaven. What better way to understanding Big Data today and having a fond and respectful remembrance of classic computing of yesteryear. Or maybe as C. Zarin writes: ?We learn more than we ever wanted to know about things we wish we?d never heard of.? I hope this never comes to pass when it comes to classic/vintage computing. Murray--