Given 32-bit binary number, please demonstrate the range it could represent is 3 different cases. (a) case 1: unsigned integer (b) case 2: signed integer (c) case 3: single-presion IEEE 754 floating-Point representation (please show the reseasoning). (d) Then please briefly explain the benefits of floating point representation. For Floating-Point representation, there is an event "underflow" besides "overflow". Please briefly what is underflow and overflow. You could use single-presion IEEE 754 floating-Point representation as an example to show underflow and overflow