binary system


a system involving only two elements, as 0 and 1 or yes and no.
Mathematics. a system of counting or measurement whose units are powers of two.Compare binary(def 2a).
Astronomy. binary star.

Origin of binary system

First recorded in 1825–35
Also called dyadic system (for defs 1, 2). Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019