Binary Digits

Binary Digits or Bits are numbers represented by 1’s and 0’s. Each value in a binary digit represents a power of two.

  • The first position represents 1  (2^0)
  • The second position represents 2 (2^1)
  • The third position represents 4 (2^2)
  • The fourth position represents 8 (2^3)
  • and so on and so forth

In binary, we count like below.

  • 1     –  one
  • 10   –  two
  • 11   –  three
  • 100 –  four
  • 101 –  five
  • 111 –  six

Each position can only hold 1’s or 0’s so when we want to add one to one, we carry a one to the next slot.

In a computer, all numbers are stored in bits.