[информатика и компьютерные технологии] персональный цифровой секретарь (карманный компьютер, используемый в качестве записной книжки)
noun PDA
(PDA) A small hand-held computer typically providing calendar, contacts, and note-taking applications but may include other applications, for example a web browser and media player. Small keyboards and pen-based input systems are most commonly used for user input. The Apple Newton was a fairly early example.