## Binary notation can be extended to cover negative powers of 2, e.g. "110.101" is:

- 1 22 + 1 21 + 1 2-1 + 1 2-3 = 6.625

## Can represent real numbers by specifying some location in the word as the "binary point" fixed-point representation.

## In practice, use some bits for an exponent floating-point representation.