noun
complementer; complement circuit
Technical computing term for a circuit that computes the complement of a number, such as two's complement.
このCPUは補数回路を使って減算を実装している。
This CPU implements subtraction using a complement circuit.
補数 is the mathematical concept of a complement; 補数回路 is the physical or logical circuit that computes it.
Compound of 補数 (complement) and 回路 (circuit).