The set of bytes is the D11: Set \begin{equation} \left\{ (n_0, n_1, \ldots, n_7) : n_0, n_1, \, \ldots, \, n_7 \in \{ 0, 1 \} \right\} \end{equation}

The set of bytes is the D11: Set \begin{equation} \{ 0, 1 \}^8 \end{equation}