卓上 たくじょう計算 けいさん ではありませんでした
takujōkeisankidewārimasendeshita

Noun
Desu Copula

The polite, past negative form of 卓上計算器

1. Was not a desktop calculator.; It was not a desktop calculator.

Past/Perfective
Negative
Polite
Formal Register
Computing