磁気 じきドラム記憶 きおく装置 そうちでしょう
jikidoramukiokusōchideshō

Noun
Desu Copula

Expresses probability in a polite manner ("probably…") of 磁気ドラム記憶装置

1. Magnetic drum memory; Probably a magnetic drum memory

Polite
Presumptive
Conjecture
Computing