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1. Design a digital combinational circuit which compares two 2- bit binary numbers and produces results using a 2-bit binary number (please see the block diagram below). The output Z 1 Z 0 depends on the inputs A 1 A 0 and B 1 B 0 according to the following criteria: If (A 1 A 0 > B 1 B 0 ) the output Z 1 Z 0 = 10 If (A 1 A 0 < B 1 B 0 ) the output Z 1 Z 0 = 01 If (A 1 A 0 = B 1 B 0 ) the output Z 1 Z 0 = 11 You should use minimum number of logic gates. [7 marks] Answer Required Digital Combinational Circuit is as shown below Truth table for the given 2-bit binary number comparison is as given below Input Output

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1. Design a digital combinational circuit which compares two 2-bit binary numbers and produces results using a 2-bit binary number (please see the block diagram below). The outputZ1Z0depends on the inputsA1A0andB1B0according to the following criteria: If (A1A0>B1B0) the outputZ1Z0= 10 If (A1A0BA=BA