I don't follow your argument. PCs weren't popular because they couldn't handle the Japanese language encoding, but somehow, consumer electronics were popular because they could handle the complex tasks with the language?
JIS C 6226, the encoding for the Japanese language, was made in the 70s. While later than the US, I would not call it late.
JIS C 6226, the encoding for the Japanese language, was made in the 70s. While later than the US, I would not call it late.