COMPUTER SCIENCE AND ENGINEERING
DIGITAL LOGIC
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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A = 1 B = 0
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A = 0 B = 1
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A = 0 B = 0
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none of the above
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Detailed explanation-1: -The output of EX-NOR gate is 1 when both the inputs are 1 (high) and if both the inputs are 0 (low). If either one of the input is 1 (high) the output will be 0 (low). In other words, both the inputs should be in the same logic level for the output to be 1.
Detailed explanation-2: -The outputs of all NOR gates are low if any of the inputs are high. The symbol is an OR gate with a small circle on the output. The small circle represents inversion. The ‘Exclusive-OR’ gate is a circuit which will give a high output if either, but not both, of its two inputs are high.
Detailed explanation-3: -Which of the following points is not correct regarding an Ex – NOR gate in Digital Electronics? Explanation: Ex – NOR gate is a one – bit comparator as the output for the gate is 1 if similar inputs are given to the gate and output is 0 if different inputs are given to the gate. 49.
Detailed explanation-4: -Explanation: The time required for a gate or inverter to change its state is called propagation time.
Detailed explanation-5: -three bit counter will give the sum of full adders as output.