Calculator - 1980-1990 - HP 41cx

The HP-41CX, launched in 1983 as the flagship of the HP-41 series, is an LCD-based programmable alphanumeric calculator, regarded as a true "pocket computer". It integrated advanced features, a time module, extended memory, and Reverse Polish notation (RPN). It inherited expandability through module slots, offering computational power superior to the previous models (41C/CV).

Advanced Features: Compared with the 41CV, the 41CX included time management functions (Time Module) and integrated extended memory (Extended Memory), significantly increasing the registers available for programs and data.
Display and Keyboard: Equipped with an alphanumeric LCD display capable of showing letters and numbers, with a superior tactile feel of the keys.
Expansion: It had four upper ports for inserting software modules, extra memory (Quad Memory), or HP-IL system peripherals.
Programming: It allowed the creation of complex programs, the use of global labels, and the manipulation of alphanumeric strings.
Memory: It offered dynamic memory management, with the ability to convert data registers into program lines.
Produced until 1990, it remained a benchmark for engineers and professionals thanks to its extreme flexibility.

The battery module needs to be replaced.