Numerical Processing Unit (NPU) The following description is about a 4-bit Numerical Processing Unit depicts in Figure Q3 which is used for computing arithmetic operations such as addition, subtraction, etc. The NPU consists of a 4-bit Carry Look Ahead (CLA) Adder and the other digital electronic components. The relationship between present carry (Ci+1) and previous carry (C) of a 4-bit CLA Adder is given by the Boolean equation 1 below. Ci+1 = G + PC --- (equation 1) Where carry generation Gi = A Bi, carry propagation P; = ( A bit of the CLA adder. B ). A, and B, are the ith input [Q1] (0) Draw a block diagram for 4-bit CLA Adder using 1-bit Full Adders and a CLA Logic. Clearly, show the output (sum) of the CLA Adder. If Si is ith output (sum) (Si = P C), draw a circuit diagram for the 4-bit CLA Adder were expressed by the Boolean equation 1 above using 2-inputs logic gates. Clearly show the inputs (Ai, Bi, and C), and outputs (Ci+1, P, G, and Si). (iii) Draw a circuit diagram for the CLA Logic denoted by Go, G1, G2, G3, Po, P1, P2, P3, Co, C1, C2, C3, and Causing logic gates. (iv) Draw a complete block diagram for 4-bit CLA Adder using CLA Logic and suitable components. Clearly, show the inputs and the outputs. Numerical Processing Unit (NPU) The following description is about a 4-bit Numerical Processing Unit depicts in Figure Q3 which is used for computing arithmetic operations such as addition, subtraction, etc. The NPU consists of a 4-bit Carry Look Ahead (CLA) Adder and the other digital electronic components. The relationship between present carry (Ci+1) and previous carry (C) of a 4-bit CLA Adder is given by the Boolean equation 1 below. Ci+1 = G + PC --- (equation 1) Where carry generation Gi = A Bi, carry propagation P; = ( A bit of the CLA adder. B ). A, and B, are the ith input [Q1] (0) Draw a block diagram for 4-bit CLA Adder using 1-bit Full Adders and a CLA Logic. Clearly, show the output (sum) of the CLA Adder. If Si is ith output (sum) (Si = P C), draw a circuit diagram for the 4-bit CLA Adder were expressed by the Boolean equation 1 above using 2-inputs logic gates. Clearly show the inputs (Ai, Bi, and C), and outputs (Ci+1, P, G, and Si). (iii) Draw a circuit diagram for the CLA Logic denoted by Go, G1, G2, G3, Po, P1, P2, P3, Co, C1, C2, C3, and Causing logic gates. (iv) Draw a complete block diagram for 4-bit CLA Adder using CLA Logic and suitable components. Clearly, show the inputs and the outputs