1) ввод-вывод
2) устройство ввода-вывода
3) данные ввода-вывода ∙ accumulator input/output asymmetric input/output buffered input/output communications input/output concurrent input/output data-directed input/output edit-directed input/output hybrid input/output list-directed input/output logical input/output long-haul remote input/output memory-mapped input/output physical input/output port-mapped input/output programmed input/output random-access input/output real-time input/output simultaneous input/output stream input/output teletype input/output verbal input/output