COMPUTER SCIENCE AND ENGINEERING
DIGITAL LOGIC
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
1
|
|
|
7
|
|
|
2
|
|
|
8
|
Detailed explanation-1: -Question: If a 3-input NOR gate has eight input possibilities, how many of those possibilities will result in a HIGH output? Answers: 2.
Detailed explanation-2: -A three-input gate has eight possibilities (000, 001, 010, 011, 100, 101, 110, and 111) for input states. The number of possible input states is equal to two to the power of the number of inputs: This increase in the number of possible input states obviously allows for more complex gate behavior.
Detailed explanation-3: -Sometimes you need to AND more than two inputs together. In fact, 3-and 4-input AND gates are just as common as the dual-input variety.
Detailed explanation-4: -What input values will cause an AND logic gate to produce a HIGH output? At least one input is HIGH.
Detailed explanation-5: -The output of NOR gate is high when all inputs are low. Explanation: As we see the truth table for NOR gate : When both the input is low (0), then output is high (1).