Identify the gate represented by the block diagram of Fig. Write its b – InterviewSolution

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1.	Identify the gate represented by the block diagram of Fig. Write its boolean expression, the truth table and name of the gate, it works. `:\|{:(A,B,A+B,bar(A+B)),(0,0,0,1),(1,0,0,1),(0,1,1,0),(1,1,1,0):}:\|`
Answer» The output of OR gate is made as input for NAND gate. Hence the Boolean expression for final output, `y=bar((A+B).(A+B))=bar((A+B))+bar((A+B))` `=bar((A+B))`. It is NOR gate.

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