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We continue to expand the store with Casio, HP, Sharp and TI
Slowly we increase the items for sale, which started with an interface cable and 2 Casio models, now there are quite a few Casio models besides HP, Sharp and TI.
The most interesting items I am selling are,
- PB-2000C calculators and accessories such as Basic OM-53B, Prolog OM-51P and soon I will have several units of the FA-7 interface.
- From Hewlett Packard I usually have the HP 48G series, especially the HP 48G + and HP 48GX by having both 128K RAM in addition to its USB interface cable.
- From Sharp and Texas Instruments I usually have fewer things for now, highlight the TI Connectivity Kit USB for Windows® and Macintosh®, as always this cable will help you connect your calculator to today’s computers.
The above are small examples, but if you visit the store you will see many more articles. Of some models of calculators I only have 1 unit, so you will have to be attentive if you are interested.
Thank you all for making the website grow.
New section Store
I have added the new section of Store, now you can buy that Casio calculator Fx-880p or FX-850p that you were looking for.
All the calculators are used, but are revised and are in perfect condition, in case of damage or lockup, it will be revised clearly. All the photos at our store are of the calculator for sale, therefore, there is only one ítem.
The cable you need to connect your Casio Fx-9750GII and FX-9860GII to the PC, is also available.
And as always, the interface cable to connect your FX-840P , FX-841P, FX-850P, FX-860P, FX-860Pvc, FX-870P, FX-880P, FX-890P, VX-1, VX-2, VX-3, VX-4, Z-1, Z-1GR and FX-603P to the PC
Failures in the calculator when changing batteries.
I got an email of someone whoes calculator Casio 880 is having troubles after changing the batteries, as it is a very common failure on Casio FX-880P and FX-850P, I write here the question and the solution.
Message: I cannot make the calculator work after changing the batteries, the TM, SN error codes appear, and nothing works. It does not even make an addition.
That problem is very common and easy to solve. First of all, I tell you how you should have changed the batteries in case you have not done it yet, to make you know by the next time.
The calculator has 2 big batteries (CR2032) that are the ones that make the calculator work, and a small one (CR1220) which is the one that saves the memory when the battery is changed. You have these different batteries to have a backup battery when changing, not to lose your information. Then you have to change just a battery, the big ones or the small ones, not the three at the same time. Once you are done with one, you can change the other.
Manual introduction of a program onto the Casio.
Introducing a program manually is simple, but also hard depending of the program’s size.
As a simple example, we will introduce this program:
| MODULO | Calcula el módulo de un vector. |
10 PRINT”COORDENADA X”:INPUT A
20 PRINT”COORDENADA Y”:INPUT B
30 PRINT”COORDENADA Z”:INPUT C
40 PRINT”EL MODULO ES”
50 PRINT(A^2+B^2+C^2)^0.5
60 PRINT”OTRO MODULO 1/0″:INPUT D:IF D=1 THEN 10
The most important is not to mistake when writing any character. First you have to push “MODE” and then “1”. 
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Status test for Casio calculators FX-880p and FX-850p.
In our lovely calculators are some programs from the library not documented in the manual and not in the paper enclosure in the list of programs that comes with the calculator.
Some of these hidden programs, are:
- 0400 ->Testing program of the calculator.
- 0800 ->Program for the printer.
- 0900 -> Converter of PB100 to FX-850P.
To run the program you have to push the number of the program and then the key “LIB”.
Of these three, the one that seems most interesting to me is the 0400, the testing program.
It informs you of the memory installed on the Casio, and also it tells you how much memory you have installed in the expansion module.
Birth of the web.
I have created this web about Casio calculators, because whenever there is less information in the Internet about these wonders, that refuse to go away by the time.
I have enough information about the calculators, I have had many, and I have been selling interface cables years ago. Besides, I have so many programs, many of them are already uploaded in the web.
By the time, I will be posting and sharing how to fix the most common problems of the 880 and 850, and I will be filling the museum of the calculators. I hope to share this space with Casio lovers and wish this would be very useful.
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