高速 こうそく演算 えんざん機構 きこうではありませんでした
kōsokuenzankikōdewārimasendeshita

Noun
Desu Copula

The polite, past negative form of 高速演算機構

1. Was not a high-speed arithmetic unit.; Was not a fast processing unit.

Past/Perfective
Negative
Polite
Formal Register
Computing