Difference between Byte and Octet

What is the difference between Byte and Octet?

Byte as a noun is a sequence of adjacent bits, almost always eight, operated on as a unit by a computer; can represent an integer from 0 to 255, a pair of hexadecimal digits each from 0 to f, a pair of packed decimal digits each from 0 to 9, a packed decimal digit and a sign or a single character while Octet as a noun is a group or set of eight of something.

We hope you now know whether to use Byte or Octet in your sentence.