noun
input-output device; I/O device
Technical computing term for hardware that handles both input and output, such as a touchscreen or a network interface card.
この入出力機器はUSBで接続します。
This input-output device connects via USB.
新しい入出力機器をシステムに追加した。
We added a new I/O device to the system.
Compound of 入出力 (input-output) and 機器 (device, equipment). The term is a straightforward technical coinage from computing.