HP Firsts

HP has always been an innovator and calculators have been part of that legacy. Here ... read more

HP Calculator Connectivity Kit (CONNX3) for HP39G The HP39G+ connectivity kit allows you to transfer aplets(tm)... read more

The Hewlett Packard Customer Experience

HP Total Care provides support 24/7 for products in or o... read more

Reverse polish Notation (RPN)

Hewlett Packard is the only calculator maker that offers RPN on it... read more