A Big database for small calculators. Last database update : 04-21-2014 Home Presentation Database How to ... Gallery Links Thanks Updates Changer de langue		Hewlett-Packard  41CX  aka Coconut HONEYNUT   (19 pictures)   It exists several versions from the HP-41CX, I only shown here some physical extern variations. There are also differences in the software (in ROM) and in the electonic. It exists many and various extentions because of the 4 ports.   Version 1. Version 1. Version 1. Version 1. Version 2. Version 2. Version 2. Version 2. Version 1 on the left, version 2 on the right with its rounded display. A customized version 1 (one of the early 41CX). The keybord is covered with white mask, nothing unusual with that : all the 41 usually do that... Customized version 1, behind. The interior teaches us that at the base a 41CX, is nothing other than a 41CV with a little more ROM (normal): 3 printed boards (PCB) for display, keyboard and CPU; even the components places on the CPU which are rather similar. We can see, on keyboard PCB middle left, the contacts for the famous phantom external power. We can see the 2 levels of ROM/RAM chips. For the customization, 2 X-Memory moduls were integrated into the calculator (to free external ports), and wires where sealed on the CPU PCB and connected to the moduls part ... ... to change the CPU clock speed and also to cut the buzzer. Customized version 1 on its box. Customized version 1. A version 2 ... ... openned. There is mainly one PCB for display, keyboard and CPU. Don't ask me what does the little brown. The contacts for the external power are no more there : this version has been optimized. To finnish, there are very light differences on the front labels. Introduction date 01/10/1983 End date 1990 Type RPN Scientifique Last update date 2010_02_11 Programmable Y RAM size 320+127reg, 1reg=7o ROM size 24Kbits Number of functions 223 Alpha capabilities Y Number of keys 39 Display type LCD Number of digits on display 12. Graphical (X x Y) N Extention(s) Y 4 ports Printer ext Saving mem, lecteur carte, HP-IL Date or clock capabilities Y Microprocessor Nut Functions list Scient Size (length x width x thickness) 144x79x33 Weight 200gr Batteries 4xN or bat pack External power Y/N Power consumption Twin Made in Singapore Link(s) Page displayed once since 2023-09-28.

Copyright : all the pictures are my property. You can copy and save them but strictly for your own purpose. You are not authorized to modify, diffuse or use them (even partially) for another internet site, or for all other puplic diffusion. You are authorized to create links to MyCalcDB site, but I cannot garantee their reliability in the time. What I can garantee (exept errors) is only the database calculator's id number (for example: id=777 for the HP-55).