HP-41C
| HP-41CX with magnetic card reader and thermal printer | |
| Type | Programmable scientific | 
|---|---|
| Introduced | 1979 | 
| Discontinued | 1990 | 
| Calculator | |
| Entry mode | RPN | 
| Display type | LCD fourteen-segment display | 
| Display size | 12 14-segment (alphanumeric) digits | 
| CPU | |
| Processor | HP Nut core (1LF5-0002) | 
| Programming | |
| Programming language(s) | RPN key stroke (fully merged, Turing complete) | 
| Memory register | 63 .. 319 | 
| Program steps | 441 .. 2233 | 
| Interfaces | |
| Ports | four vendor specific | 
| Connects to | micro-cassette via: floppy disk via: 
 PC via one of: 
 | 
| Other | |
| Power supply | four size N batteries or HP 82120A rechargeable battery pack | 
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.