HP 9810A Calculator

YEAR: 1972 INITIAL PRICE: $2.475 \ $14.425 in 2016   The HP 9810A (AKA the 9800 series model 10) was HP’s second calculator. It made use of the new technologies of the time including IC chips for RAM, ROM, and logic, and a three line LED display instead of a CRT. The HP 9810A was…