Rekindling an interest in Model Railroading. Serial entrepreneur. Current CEO and owner of INTEG (integpg.com). Developer of the JNIOR controller. Author of the JANOS operating system. Inventor of electronic credit card technologies. Started programming computers in high school on a DEC PDP-8 in 1969! I have a serious DIY ethic, a commitment to the customer, and an interest in making work and fun.