解説Usage share of personal computers at home in Japan as of 1989.png
English: Usage share of 665 personal computers at home, 906 Japanese businessmen (Nikkei Business, Nikkei Computer and Nikkei Personal Computing readers) answered, and 509 of them owned a personal computer. Source: Nikkei Personal Computing (日経パソコン) journal 1989-4-10 issue.