COMPUTER SCIENCE AND ENGINEERING
DIGITAL LOGIC
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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At least one input is HIGH
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At least one input is LOW
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All inputs are HIGH
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All inputs are LOW
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Detailed explanation-1: -Which input values will cause an AND logic gate to produce a HIGH output? Explanation: For AND gate, the output is high only when both inputs are high. That’s why the high output in AND will occurs only when all the inputs are high. However, in case of OR gate, if atleast one input is high, the output will be high.
Detailed explanation-2: -In digital electronics, a NAND gate (NOT-AND) is a logic gate which produces an output which is false only if all its inputs are true; thus its output is complement to that of an AND gate. A LOW (0) output results only if all the inputs to the gate are HIGH (1); if any input is LOW (0), a HIGH (1) output results.
Detailed explanation-3: -The OR gate is an electronic circuit that gives a high output (1) if one or more of its inputs are high.
Detailed explanation-4: -Detailed Solution. A 2 input logic gate which has always a high output when its inputs are the same is XNOR.