1. How do you distinguish between positive and negative logic systems? Prove that an OR gate...

   

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1. How do you distinguish between positive and negative logic systems? Prove that an OR gate in a positive logic system is an AND gate in a negative logic system. 2. Give brief statements that would help one remember the truth table of AND, NAND, OR, NOR, EX-OR and EX-NOR logic gate functions, irrespective of the number of inputs used. 3. Why are NAND and NOR gates called universal gates? Justify your answer with the help of examples. 1. How do you distinguish between positive and negative logic systems? Prove that an OR gate in a positive logic system is an AND gate in a negative logic system. 2. Give brief statements that would help one remember the truth table of AND, NAND, OR, NOR, EX-OR and EX-NOR logic gate functions, irrespective of the number of inputs used. 3. Why are NAND and NOR gates called universal gates? Justify your answer with the help of examples.

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The image contains three questions related to digital logic systems Lets address each question one by one 1 How do you distinguish between positive and negative logic systems Prove that an OR gate in ... View the full answer