If you have the opportunity to support those who work for free, in this non-profit museum, and with the aim of opening a museum in the city of Rieti dedicated to Texas Instruments. DONATE !

hp 80Model: HP-80
Battery: 
Adapter: 
Year: 1972
Chip:
Info: The HP-80 was HP's second handheld calculator. This calculator was designed for business rather than scientific/engineering. In addition to having different functions, it was designed with a different philosophy. Whereas the HP-35 was designed for technical/mathematical users, the HP-80 was designed to be a problem solver that didn't require its users to know the formulas needed. Thus, the user could simply enter the parameters of a business problem and get an answer with a single keystroke. (In other words, the HP-35 user supplied the formulas, but on the HP-80, the calculator supplied them.

Special thanks go to Alessandro Acibase for the donation.

HP museum.org HP-80