|Re: Rare calculator?|
Message #4 Posted by Valentin Albillo on 30 Nov 2005, 11:01 a.m.,
in response to message #3 by Juergen Keller
"What do you think is the reason that it is so difficult to find any documentation about this model? Whas the manual so bad that everybody got rid of it, or is this a rare
It's an extremely rare calculator. I've only seen it offered for sale three times or so. Got mine in eBay for 44 euros (about US$ 50 at the time).
"Do you know if the various Sharp models use (more ore less) the same BASIC dialect?"
Yes, pretty much the same with obvious extensions for the dedicated models. So, your SHARP PC-1425 does have the same BASIC "level 2" with statistic functions added, the financial SHARP PC-1421 does have the same BASIC "level 2" with financial BASIC statements added (such as IRR, NPV, etc), ...
"Is there any documentation about Sharp BASIC?"
There are mainly two flavors of vintage SHARP BASIC. Level 1 is the dialect that came with the original SHARP PC-1211 and several other models. Level 2 is the advanced dialect that came with the newer models, such as the SHARP PC-1350, your PC-1425, etc. This advanced BASIC upgrades the older version with two dimensional arrays, multi-character variable names, and many, many extensions,
Programs written in Level 1 can be keyed in and even read from tape by Level 2 machines with few or no modifications. The reverse isn't true, logically. But the bottom line is there are essentially only two versions of vintage SHARP BASIC and they are upwards compatible.
Yes, tons ! You'll find tons of original SHARP manuals scanned and converted to PDF documents freely downloadable from here, both in German and in English. Regrettably, the one for the PC-1425 is missing, but you can download the German manual for the PC-1421 instead, which will include tutorials and reference for all the functionality of your PC-1425, plus business functions (not present in your machine, of course) and minus the statistical functions (not present in the PC-1421, obviously).
"Valentin, hope we are lucky and find someone who can make us happy again ;-)"
Let's hope. And if you do before I do, please let me know, and vice versa.
Best regards from V.