Do Japanese use kana or romaji keyboard?

Related questions

1. Which Japanese writing system is used the most?
2. How do you type Kanji on a Japanese keyboard?
3. What is Zenkaku Hankaku?
4. How is Japanese typed?
5. Do Japanese people use romaji?
6. How do you type in katakana?
7. How do you type small hiragana?
8. Should I learn romaji?
9. How do you type Kanji on iPhone?
10. How do I type Japanese Kanji on my computer?

Tags

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2. #currently
3. #romaji
4. #methods
5. #however
6. #japanese
7. #nyuuryoku
8. #among
9. #nearly
10. #hiragana
11. #input
12. #there
13. #people
14. #alphabet
15. #common
16. #keyboard
17. #letters