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    Love it. Interesting to see multiple references to its “16-bit” nature. I feel like that’s one of the earliest times I’ve seen “bitness” used in marketing.

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      But, they were right: the 9900 and its derivatives are truly 16-bit. Not that the Tomy OS takes much advantage of it.

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      Congrats on the haul. Any ideas why the American computer’s keys can’t be read?

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        Probably something different about how the keyboard lines are detected. The two systems are not precisely the same internally and some of the glue logic differs quite a bit.