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   Roy Tam (roytam1@miniwa.moe)'s status on Sunday, 29-Oct-2023 11:06:27 JST Roy Tam

   in reply to

   • starfrost
   @starfrost I wonder if ROM is dumped from such calculator?
   • Embed this notice
     starfrost (starfrost@wetdry.world)'s status on Sunday, 29-Oct-2023 11:06:31 JST starfrost

     Adding to this: I went through a phase of being obsessed with graphing calculators.

     CASIO had actually invented these things, in 1985. Initially, they used a Z80 derivative. Later, they shifted over to the NEC V30MX. Also known as the Intel 8086. The OS was Datalight ROM-DOS. A clone of MS-DOS. Yes, they ran DOS on a calculator. This actually worked fine for a while and they got through several generations of calculator with it.

     But they had a problem. In 2005, it was time to make their next generation of calculators to squeeze even more money from the educational market - but for some reason they couldn't or didn't want to use their old platform. So what do they do?