The HPC/41CV Alphanumeric Full Performance. Programmable Calculator. Owner’s Handbook and. Programming Guide. September printed on or above a key (on the Normal mode keyboard or on the Alpha keyboard) are always shown throughout this manual as they would appear in the . (up to four) or step up to an HPCV or HPCX the total number of registers can increase to (64 registers for each memory module). When allocated.

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Up to four such modules could be added to reach a total of registers. All keys could be re-assigned to user-defined commands. Note that two extension port covers have been marked with a black pen hardly noticable. This code-exchangability created a huge base of programs. And although it manial modern it is rather slow. Mint out of the box, everything like new except the cardboard box.

This early HPC unit is equipped with golden ball-contacts for the external power supply.

HP HP-41CX Manuals

Infrared module HPA, serial number Labels and mutli-character string labels. After 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.


About 70 magnetic cards for the magnetic card reader. A calculator with cult status. Excellent condition, fully functional.

Hp HPCX Manuals

The graphics display of some of the Pioneer models is much better in this respect. A very popular calculator.

Original HPC cardboard box in good condition. No scratches on the back, keys feel a bit worn from extensive use, front dirty seems someone glued a keyboard overlay to the unit.

Interestingly, the “print stack” command is listed incorrectly as “PRST”. German, pages, German, pages, 1st issue, One sheet of sticky labels for overlays, mabual new. Specifies the amount of number registers nnn to allocate.

Front and back close to mint, a few scratches on the sides.

HP -41CX Quick Reference Manual

Various information on “synthetic programming”. Only one such module could be installed. The remaining registers can be used for program code. Also, HP provided a respectable number of software packages as well as ROM modules with pre-programmed solutions.

I have a couple of CL myself, and it has happened that once per calculator so far. Rather large with no other markings. It is also one of the first calculators with support for alphanumeric h;-41cx – but in my opinion this makes the display hard to read. For plain string input do not use XEQ. Unfortunately, my cleaning efforts made things even worse not visible on the picture.


Program “ST” speed test is the core speed test program. Math 1 ROM module, part no. Delivers highly accurate results! Apparently, only two such modules could be installed.


The following files are available on the Systemyde website: White keyboard overlay with normal function codes. A unique feature was the barcode reader “wand” that allowed to read in programs that were printed on paper in hp–41cx form of barcodes. Bound printout from the pages at hp Replaced the rubber wheel – now it manuap work any more at all! Within a program local labelsA – J and a – j can be used. One one side marked “”. Cardboard box with 6 rolls of paper for the A or A printer.

The HPA memory module added 64 registers.

To enter this command press: The HPA “X-memory” module increased the extended memory space by registers bytes. To execute a program in extended memory it must first be copied manua, regular internal memory. These local labels are not visible outside of the current global program. A picture of the serial interface connector. Rather, indirect access must be used.

Last modified: December 28, 2019