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"Binary" is the name given to the base-2 numeral system (decimal being base-10). Each place represents a bit, which can have a value of either 0 or 1 (compared to base-10, where each place can have a value of 0–9).

The table below shows some values for an 8-bit number alongside their decimal representations:

Binary place87654321
Decimal value of binary place1286432168421


  • A bit is an individual place with a value of either 1 or 0; portmanteau of "binary digit".
  • A Nibble is 4 bits.
  • A byte is 8 bits.
  • A hextet is 16 bits.

Other representations