Roger is a retired software engineer. He worked on everything from military computers (UNIVAC AN/YUK-7) for nuclear submarines, to DEC PDP-11s, to PCs, to the latest microprocessors (Arduino, Raspberry Pi, etc.). Author of The Inventors Sketchpad column in Interface Age magazine for several years, and Star Ship Simulation, a book about how a set of small computers could be networked to simulate the bridge of the Starship Enterprise, written and published long before the advent of personal computers. Founder and current president of Hawaii Inventors Association.