Meaning of binary system

bi'nary sys"tem

Pronunciation: [key]
  1. a system involving only two elements, as 0 and 1 or yes and no.
  2. a system of counting or measurement whose units are powers of two. Cf. binary (def. 2a).
  3. SeeAlso called
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.