HEWLETT PACKARD 48GX MANUAL
HP-41C - Wikipedia
The HP-41C series are programmable, expandable, continuous memory handheld RPN calculators made by Hewlett-Packard from 1979 to 1990. The original model, HP-41C, was the first of its kind to offer alphanumeric display capabilities. Later came the HP-41CV and HP-41CX, offering more memory and functionality.
HP® Computer and Laptop Store | HP
Find a great collection of Laptops, Printers, Desktop Computers and more at HP. Enjoy Low Prices and Free Shipping when you buy now online.
HP-65 - Wikipedia
The HP-65 is the first magnetic card-programmable handheld calculator. Introduced by Hewlett-Packard in 1974 at an MSRP of $795 (equivalent to $4,368 in 2021), it featured nine storage registers and room for 100 keystroke instructions also included a magnetic card reader/writer to save and load programs. Like all Hewlett-Packard calculators of the era and most since, the