RSKEY.ORGNon-profit Web Site

The first time I ever handled a programmable number-crunching device, it was a programmable pocket calculator that I was permitted to touch. It was a case of love at first sight. I always remained fond of these machines and a few years ago, started what might be described as a professional collection of vintage portable programmable calculators. The site,, has since become a popular Internet resource among calculator and mathematics enthusiasts.