numerical control
Abbreviation for 数値制御 (numerical control), used in manufacturing and machining contexts.
See also: 数値制御 (すうちせいぎょ)
This factory uses NC machine tools.
network computer
Abbreviation for ネットワークコンピュータ (network computer), a computing term.
See also: ネットワークコンピュータ
An NC is a computer used by connecting to a network.