乱数 らんすう発生 はっせい じゃありませんでした
ransūhassei kija arimasendeshita

Noun
Desu Copula

The polite, past negative form of 乱数発生器

1. Was not a random number generator.; Was not a random number generator, politely.

Past/Perfective
Negative
Polite
Terminal Form
Computing