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 z(.1011)2 x2, y-(.1100)2 x 20 Mark in the provided table whether the machine operation indicated (with the result Z assumed normalized) is exact, rounded (i.e., subject to nonzero rounding error), overflows, or underflows Operation exact rounded overflow underflow Z y(x/4))