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The HPA memory module added 64 registers. Up to four such modules could be added to reach a total of registers. The HPA quad memory module added registers giving a total of registers. Only one such module could be installed. Data inside extended memory is organized in files which can store programs or data.

To execute a program in extended memory it must first be copied to regular internal memory. The HPA "X-memory" module increased the extended memory space by registers bytes.

Apparently, only two such modules could be installed. It has not. I have a couple of CL myself, and it has happened that once per calculator so far. B, September , printed in Singapore. Power supply, V. Apparently broke at some time because the enclosure is glued. Excellent condition, fully functional. Interestingly, the "print stack" command is listed incorrectly as "PRST". Cardboard box with 6 rolls of paper for the A or A printer.

Order number A. Excellent condition. Original HPC cardboard box in good condition. One one side marked "". One blank overlay, one standard functions overlay both plastic. One sheet of sticky labels for overlays, completely new. Magnetic program card holder with 39 unmarked magnetic cards. Gallen" Switzerland. Magnetic program card holder with 38 unmarked magnetic cards and one red card used to clean the magnetic head of the card reader.

Absolutely excellent! Front and back close to mint, a few scratches on the sides. Powersupply: "Netzteil HPc". Rather large with no other markings. This early HPC unit is equipped with golden ball-contacts for the external power supply. Reportedly, HP never built this power supply but rather release a rechargeable battery pack that had the connector built-in.

Also, there isa label reading "34 03 ". Two keyboard overlays: One with standard key symbols, one with no labels. Sheet of small adhesive labels with programming functions. Pretty good. No scratches on the back, keys feel a bit worn from extensive use, front dirty seems someone glued a keyboard overlay to the unit. Unfortunately, my cleaning efforts made things even worse not visible on the picture. Some listings included. Mint calculator. Note that two extension port covers have been marked with a black pen hardly noticable.

White keyboard overlay with normal function codes. Additional 75 Magnetic Cards. Mint out of the box, everything like new except the cardboard box. Card Reader. Serial Number. Replaced the rubber wheel - now it doesn't work any more at all! Did not put back the label which covers the screws. Magnetic Cards. About 70 magnetic cards for the magnetic card reader.

Manual: A Card Reader Owner's handbook. English, Rev. Barcode Wand. None powered from HP calculator. Both reader and manual in excellent condition. Works flawlessly. Large battery pack or external power supply. English, approx. Bound printout from the pages at hp German, pages, 1st issue, German, pages, ISBN Various information on "synthetic programming".

ROM Module. Math 1 ROM module, part no. IR Module. Infrared module HPA, serial number QuickRef Card. Type, Precision, Input Mode. Delivers highly accurate results! Yes, merged keystrokes. Memory space is shared between programs and data storage, allocation is performed using the SIZE command. One register can hold up to 7 program steps 7 bytes. Labels and mutli-character string labels. Named programs. Performance Index. Permanent memory. Register memory shared with program memory.

A very popular calculator. Allowed for "synthetic programming" where machine code was accessible thru illegal commands. All keys could be re-assigned to user-defined commands. The "flying goose" and the "backwards flying goose".

A HPCV with added extended memory, a built-in timer module and the extended functions module. Original Pricing, Production. Note that the printer A can power the HP Length Forensic Result. A calculator with cult status. Especially the possibility to access ROM code made it the preferred toy for "hackers".

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. Also, HP provided a respectable number of software packages as well as ROM modules with pre-programmed solutions. It is also one of the first calculators with support for alphanumeric strings - but in my opinion this makes the display hard to read.

The graphics display of some of the Pioneer models is much better in this respect. And although it looks modern it is rather slow. See HP-Collection. HP Option : Without most of the keyboard labels, to be used with keyboard overlays. Refer to the table on the back of the calculator for special keys ie. For plain string input do not use XEQ.

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HP Museum DVD 1

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