When I was around 8 to 10, I got REALLY into computers through this book my parents got: https://bashny.net/t/en/34007 (Энциклопедия профессора Фортрана / Professor Fortran's Encyclopedia). It laid out all the fundamental concepts like algorithms, storage, memory, etc. I didn't even have a computer at the time, but this book I think pretty much laid the path for me.

My dad also had these ones, which I also loved: https://archive.org/details/worldofcomputers/page/n17/mode/2... (Мир компьютеров в вопросах и ответах / World of Computers in Questions and Answers). It's probably got an original Japanese version, but I can only find the Russian ones. These books are more advanced, and go into computer basics all the way to telephone and packet networks.