The HPC/41CV Alphanumeric Full Performance. Programmable Calculator. Owner’s Handbook and. Programming Guide. September HPCX Owner’s Manual Vol – Ebook download as PDF File .pdf) or read book online. The HPCX was the same as the HPCV but added the Time module The phonebook-sized manual dwarfed the calculator, let alone the tiny ROM.

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Interestingly, the “print stack” command is listed incorrectly as “PRST”.

Refer to the table on the back of the calculator for special keys ie. The following files are available on the Systemyde website: Labels and mutli-character string labels. The graphics display of some of the Pioneer models is much better in this respect. Especially the possibility to access ROM code manjal it the preferred toy for “hackers”. This code-exchangability created a huge base of programs. It mwnual also one of the first calculators with support for alphanumeric strings – but in my opinion this makes the display hard to read.

Rather large with no other markings. Up to four such modules could be added to reach a total of registers. Sheet of small adhesive labels with programming functions.


Manula time I didn’t install a little spring which obstructed the card slot – now it works!!


Front and back close to mint, a few scratches on the sides. Mint out of the box, everything like new except the cardboard box.

The HPA memory module added 64 registers. Infrared module HPA, serial number Only one such module could be installed.

Register memory shared with program memory. Additional 75 Magnetic Cards. These local manua are not visible outside of the current global program. Magnetic program card holder with 39 unmarked magnetic cards. A calculator with cult status. And although it looks modern it is rather slow. To enter this command press: Within a program local labelsA – J and a – j can be used. For plain string input do not use XEQ.

4cx the listing has been stopped when this “END” is displayed switching to PRGM mode will display the program and it is possible to delete it step-by-step to reclaim program memory. A HPCV with added extended memory, a built-in timer module and the extended functions module. I have a couple of CL myself, and it has happened that once per calculator so far. Apparently broke at manuql time because the enclosure is glued. None powered from HP calculator.


Cardboard box with 6 rolls of paper for the A or A printer. Apparently, only two such modules could be installed. Various information on “synthetic programming”. Math 1 ROM module, part no. Note that two extension port covers have been marked with a black pen hardly noticable. Rather, indirect access must be used.

Hewlett Packard HP-41C/CV/CX/CL

Also, there isa label reading “34 03 “. Also, it is not possible to use “CLP” to delete the memory manuap by the program! Delivers highly accurate results! Program “ST” speed test is the core speed test program. Original HPC cardboard box in good condition.

Solved: HPCX manuals – HP Support Community –

Unfortunately, my cleaning 41c made things even worse not visible on the picture. All keys could be re-assigned to user-defined commands. A picture of the serial interface connector.

To execute a program in extended memory it must first be copied to regular internal memory. A very popular calculator.