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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Cardboard box with 6 rolls of paper for the A or A printer. The HPA memory module added 64 registers. The remaining registers can be used for program code.
White keyboard overlay with normal function codes. Also, it is not possible to use “CLP” to delete the memory occupied by the program! About 70 magnetic cards for the magnetic card reader. A unique feature was the barcode reader “wand” that allowed to read in programs that were printed on paper in the form of barcodes. This code-exchangability created a huge base of programs. Magnetic program card holder with 38 unmarked 441cx cards and one red card used to clean the magnetic head of the card reader.
Front and back close to mint, a few scratches on the sides. It is also one of the first calculators with support for alphanumeric strings – but in my opinion this makes the display hard to read. Also, HP provided a respectable number of software packages as well as ROM modules with pre-programmed solutions. None powered from HP calculator.
HP CX QUICK REFERENCE MANUAL Pdf Download.
Rather large with no other markings. Older units will be completely reset, newer units perform a “soft reset”. Rather, indirect access must be used.
Apparently, only two such modules could be installed. 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. Both reader and manual in excellent condition.
41x for “synthetic programming” where machine code was accessible thru illegal commands. The graphics display of some of the Pioneer models is much better in this respect. German, pages, Only one such module could be installed. No scratches on the back, keys feel a bit worn from extensive use, front dirty seems someone glued a keyboard overlay to the unit.
A HPCV with added extended memory, a built-in timer module and the extended functions module. Math 1 ROM module, part no. One blank overlay, one standard functions overlay both plastic. A picture of the serial interface connector.
For plain string input do not use XEQ. Without most of the keyboard labels, to be used with keyboard overlays. These local labels are not visible outside of the current global program. You can enter a program that starts with a local label.
Infrared module HPA, serial number The “flying goose” and the “backwards flying goose”. Did not put back the label which covers the screws.
HP -41CX Quick Reference Manual
The HPA “X-memory” module increased the extended memory space by registers bytes. Especially the possibility to access ROM code made it the preferred toy for “hackers”. One register can hold up to 7 program steps 7 bytes. Interestingly, the “print stack” command is listed incorrectly as “PRST”. manua
Program “ST” speed test is the core speed test program. Note that two extension port covers have been marked with a black pen hardly noticable.