An 8-bit field can represent 28 = 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 = 256 different patterns of 0s and 1s. For unsigned integers, ...
Hex is useful because large numbers can be represented using fewer digits. For example, colour values and MAC addresses are often represented in hex. Additionally, hex is easier to understand than ...