Binary may refer to:

Science and technology

Mathematics

Binary number A binary number is a number expressed in the Radix, base-2 numeral system or binary numeral system, a method for representing numbers that uses only two symbols for the natural numbers: typically "0" (zero) and "1" (one). A ''binary number'' may ...

, a representation of numbers using only two values (0 and 1) for each digit * Binary function, a function that takes two arguments *

Binary operation In mathematics, a binary operation or dyadic operation is a rule for combining two elements (called operands) to produce another element. More formally, a binary operation is an operation of arity two. More specifically, a binary operation ...

, a mathematical operation that takes two arguments *

Binary relation In mathematics, a binary relation associates some elements of one Set (mathematics), set called the ''domain'' with some elements of another set called the ''codomain''. Precisely, a binary relation over sets X and Y is a set of ordered pairs ...

, a relation involving two elements * Finger binary, a system for counting in binary numbers on the fingers of human hands

Computing

Binary code A binary code represents plain text, text, instruction set, computer processor instructions, or any other data using a two-symbol system. The two-symbol system used is often "0" and "1" from the binary number, binary number system. The binary cod ...

, the representation of text and data using only the digits 1 and 0 * Bit, or binary digit, the basic unit of information in computers * Binary file, composed of something other than human-readable text **

Executable In computer science, executable code, an executable file, or an executable program, sometimes simply referred to as an executable or binary, causes a computer "to perform indicated tasks according to encoded instruction (computer science), in ...

, a type of binary file that contains machine code for the computer to execute *

Binary tree In computer science, a binary tree is a tree data structure in which each node has at most two children, referred to as the ''left child'' and the ''right child''. That is, it is a ''k''-ary tree with . A recursive definition using set theor ...

, a computer tree data structure in which each node has at most two children * Binary-coded decimal, a method for encoding for decimal digits in binary sequences

Astronomy

* Binary star, a star system with two stars in it * Binary planet, two planetary bodies of comparable mass orbiting each other * Binary asteroid, two asteroids orbiting each other

Biology

* Binary fission, the splitting of a single-celled organism into two daughter cells

Chemistry

* Binary phase, a chemical compound containing two different chemical elements

Arts and entertainment

* ''Binary'' (Doctor Who audio)

Marvel Comics

* Binary, the name of two superheroines in the Marvel Universe **

Binary (Carol Danvers) Carol Susan Jane Danvers is a character appearing in American comic books published by Marvel Comics. Created by writer Roy Thomas and artist Gene Colan, the character First appearance, first appeared as an Officer (armed forces), officer in th ...

, a Marvel Comics character ** Binary (Marvel Cinematic Universe), or Maria Rambeau, a Marvel Cinematic Universe character

Music

Binary form Binary form is a musical form in 2 related sections, both of which are usually repeated. Binary is also a structure used to choreograph dance. In music this is usually performed as A-A-B-B. Binary form was popular during the Baroque music, Baro ...

, a way of structuring a piece of music * ''Binary'' (Ani DiFranco album), 2017 * ''Binary'' (Kay Tse album), 2008 * "Binary" (song), a 2007 single by Assemblage 23

Novel

* ''Binary'' (novel), a 1972 novel by Michael Crichton (writing as John Lange) * Binary, an evil organization in the novel '' InterWorld''

Other uses

* Binary opposition, polar opposites, often ignoring the middle ground * Gender binary, the classification of gender into two distinct and disconnected forms of masculine and feminine