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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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None powered from HP calculator. A unique feature was 41dx barcode reader “wand” that allowed to read in programs that were printed on paper in the form of barcodes. For plain string input do not use XEQ. Allowed for “synthetic programming” where machine code was accessible thru illegal commands.

Math 1 ROM module, part no.


Labels and mutli-character string labels. A calculator with cult status. German, pages, Magnetic program card holder with 39 unmarked magnetic cards. Without most of the keyboard labels, to be 41cd with keyboard overlays.

I have a couple of CL myself, and it manuall happened that once per calculator so far. One one side marked “”. 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.

Only one such module could be installed. Reportedly, HP never built this power supply but rather release a rechargeable battery pack that had the connector built-in.


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

Magnetic program card holder with 38 unmarked magnetic cards and one red card used to clean the magnetic head of the card reader. This early HPC unit is equipped with golden ball-contacts for the external power supply. One register can hold up to 7 program steps 7 bytes.

Rather, indirect access must be used. About 70 magnetic cards for the magnetic card reader. Note that two extension port covers have been marked with a mamual pen hardly noticable. Up to four such modules could be added to reach a total of registers. German, pages, 1st issue, All keys could be re-assigned to user-defined commands.

Program “ST” speed test is the core speed test program. Sheet of small adhesive labels with programming functions. The following files are available on the Systemyde website: Apparently, only two such modules could be installed.

Bound printout from the pages at hp Mint 4c1x of the box, everything like new except the cardboard box.

Apparently broke at some time because the enclosure is glued. One sheet of sticky labels for overlays, completely new. This time I didn’t install a little manaul which obstructed the card slot – now it works!!

HP -41CX Quick Reference Manual

Older units will be completely reset, newer units perform a “soft reset”. Also, HP provided a respectable number of software packages as well as ROM modules with pre-programmed solutions. The “flying goose” and the “backwards flying goose”.

The HPA memory module added 64 registers. Delivers highly accurate results! The graphics display of some of the Pioneer models is much better in this respect. The HPA quad memory module added registers giving a total of registers.


Infrared module HPA, serial number Note that the printer A can power the HP Replaced the rubber wheel – now it doesn’t work any more at all! One blank overlay, one standard functions overlay both plastic. Refer to the table on the back 41xc the calculator for special keys ie. Data inside extended memory is organized in files which can store programs or data. Cardboard box with 6 rolls of paper for the A or A printer. Various information on “synthetic programming”. Also, it is not possible to use “CLP” to delete the memory occupied by the program!

Register memory shared with program memory. Unfortunately, my cleaning efforts made things even worse not visible on the picture. B, Septemberprinted in Singapore. No scratches on the back, keys feel a bit worn from extensive use, front dirty seems someone glued a keyboard overlay to the unit. Memory space is shared between programs and data storage, allocation is performed using the SIZE command.

This code-exchangability created a huge base of programs. It is also one of the first calculators with support for alphanumeric strings – but in my opinion this makes the display hard to read.


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