Ernst Mulder's Calculator Museum. A collection of calculators, with images and descriptions of their peculiarities.. HP-67/97 The HP-67 and HP-97 were introduced as a matched set. The 97 had a printer, a larger case and a much larger battery pack. They were otherwise functionally equivalent. An HP Catalog described them as "A major leap forward in fully-programmable personal calculators. These are the most powerful personal calculators Hewlett-Packard has ever made." (Personal Calculator distinguished them.
The HP-67 is a magnetic card-programmable handheld calculator, introduced by Hewlett-Packard in 1976 at an MSRP of $450. [1] A desktop version with built-in thermal printer was sold as the HP-97 at a price of $750. [2]. Manual accompanying the set of applications (stored on magnetic stripe cards) bundled with the HP-67 programmable calculator.