(25 points) Consider a miniature binary computer whose floating-point words consist of 4 binary digits for the mantissa and 3 binary digits for the exponent (plus sign bits). Let (1011)2 x 2, y (.1100)2 x 20 Mark in the provided table whether the machine operation indicated (with the result Z assumed normalized) is exact, rounded (ie, subject to nonzero rounding error ), overflows, or underflows. Operation rounded overflow underflow exact