# Problem What is the range of an unsigned byte? # Process A byte is an 8-digit binary number. In signed binary numbers, the MSB is usually the digit which indicates the sign of the number. Since the byte is unsigned in this case, that means the MSB can be used for the numerical value and not as an indicator for whether the number is positive or negative. The lowest non-negative number is 0, so that is our minimum. The highest value that any numerical system can represent is equal to the base of the numerical system raised to the number digits minus 1. $\begin{split}\textrm{Maximum}&=B^N-1\\ &=2^8-1\\ &=\boxed{255} \end{split}$ # Answer 0 to 255.