The Raspberry Pi 400 simply selected "Japan" from the locale settings as soon as I turned it on, and not only did it display the Japanese language, but it also set up the input method and set up the terminal's Japanese language settings fully automatically. With the Chroniumu Media Edition installed, Amazon PrimeVideo is also playable, and since the Zodiac DAC was recognized by Plug and Play, the sound was also no problem at all. The Raspberry Pi 400 is a computer that is easy for anyone to get started with, as the inconveniences of Linux have been solved. Scratch 1-3, Mathematica, Python, Java and LibreOffice are also installed, so it's an excellent teaching tool. The 40-pin GPIO on the back allows for a Breakout Board to be connected to the 40-pin GPIO on the back, which made it very easy to connect the BME280 environmental sensor and a small LCD with an I2c connection. My room is cold, so I plan to measure the room temperature and display it on the LCD. Translated with www.DeepL.com/Translator (free version)