Any form of data needs to be converted to binary to be processed by a computer. Data is processed using logic gates and stored in registers. Denary is a base 10 system. Binary is a base 2 system. Hexadecimal is a base 16 system. Values used will be integers only. Conversions in both directions, e.g., denary to binary or binary to denary. Maximum binary number length of 16-bit.