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A comment on Show HN: KnightOS – An open-source OS for calculators. Parent comment

Re:Show HN: KnightOS – An open-source OS for calculators by dalke on Thursday August 25, 2016 @09:54PM (#12363842)
There are a lot of used ones on eBay. The devices for all those graduated kids has to go somewhere.

Looks like ~$20 for a TI-73, vs. $70 on Amazon, and ~$40 for a TI-83+, vs. ~$80 on Amazon.

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Re:Show HN: KnightOS – An open-source OS for calculators by qwertyuiop924 on Thursday August 25, 2016 @10:05PM (#12363883)
Ah. I always forget to check ebay. Although pre 84+ calculators were a pain to flash...
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Re:Show HN: KnightOS – An open-source OS for calculators by hackcasual on Thursday August 25, 2016 @10:57PM (#12364010)
Way back in the day I built a parallel port to 3.5mm jack flasher for my 83
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Re:Show HN: KnightOS – An open-source OS for calculators by qwertyuiop924 on Friday August 26, 2016 @07:35AM (#12365489)
Yeah, but USB to 3.5 is a bit harder, IIRC...
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Re:Show HN: KnightOS – An open-source OS for calculators by hackcasual on Friday August 26, 2016 @11:15AM (#12366815)
Surely arduino's these day would make that pretty simple
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Re:Show HN: KnightOS – An open-source OS for calculators by qwertyuiop924 on Friday August 26, 2016 @12:05PM (#12367150)
Yeah, but I don't know how do do it :-(.

I'm not so good at hardware...

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