binary number

noun
UK /ˈbaɪ.nər.i ˈnʌm.bər/
US /ˈbaɪ.nɚ.i ˈnʌm.bɚ/

A binary number is a number that uses only the digits 0 and 1.

The computer stores the letter as a binary number made of zeros and ones.


OTHER MEANINGS

2. A number written in the base-2 counting system used by computers.

The binary number 101 equals the decimal number 5.

3. A sequence of bits that represents data inside a computer.

Each pixel's color is saved as a binary number.

4. A number expressed using only two symbols, often 0 and 1.

Students learned to convert 13 into the binary number 1101.