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Need your advice for a visually impaired person
09-01-2017, 11:29 AM (This post was last modified: 09-01-2017 11:32 AM by Thomas Okken.)
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Thomas Okken Online
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RE: Need your advice for a visually impaired person
The Olympia CPD 512 has a backlit LCD. Their data sheet says "green and red LCD display," but it isn't obvious to me whether that is something you have to choose when you buy the calculator, or something you can switch (two-color LED backlight? Switchable filters?)

https://www.soundstar.gr/en/product/olym...e-tenia-2/

Update: Or maybe it uses red to indicate negative numbers? That would be consistent with the black/red output from the printer.
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RE: Need your advice for a visually impaired person - Thomas Okken - 09-01-2017 11:29 AM



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