I/Oalso: アイオーFreq.FrequencyTop 50,000Meanings1nounI/O; input-outputcomputing›electronics›Technical term used in computing and electronics to refer to data transfer between a system and external devices.このプログラムはI/O処しょ理りが遅おそい。This program has slow I/O processing.新あたらしいI/Oボードをパソコンに