入出力 にゅうしゅつりょく制御 せいぎょ装置 そうちでしょう
nyū shutsuryokuseigyosōchideshō

Noun
Desu Copula

Expresses probability in a polite manner ("probably…") of 入出力制御装置

1. Input/output control device, probably.

Polite
Presumptive
Conjecture
Computing