磁気 じきドラム記憶 きおく装置 そうちじゃないです
jikidoramukiokusōchijanaidesu

Noun
Desu Copula
Negation Auxiliary

The polite negative form of 磁気ドラム記憶装置

1. It's not a magnetic drum memory.

Negative
Polite
Casual Register
Computing