Question 4 CLOL (10 pts.) Convert the 8-bit signed binary numbers in the following table with equivalent decimal numbers without using calculators. Indicate the solution steps for each item. 8-bit Signed Binary Number in 2's complement form Decimal Number 10101000 01011011 00011111 11111000 10010001 Question 5 CLO1 (20 pts.) Consider the three following 2's complement 8-bit signed binary numbers: X = 10000011, Y = 10010000, and Z-01010001. It is required to compute the addition F = X + Y and the subtraction E - X-Z using only 2's complement binary forms (without any conversion to decimal and without using calculators). a) Compute F showing your solution steps. Does an overflow occur? If an overflow occurs, indicate whether you need to repair an incorrect result. In the case of a needed repair, perform the minimum repair requirement and re-compute Fusing only 2's complement binary forms in order to obtain a final correct result. b) Compute E showing your solution steps. Does an overflow occur? If an overflow occurs, indicate whether you need to repair an incorrect result. In the case of a needed repair, perform the minimum repair requirement and re-compute E using only 2's complement binary forms in order to obtain a final correct result