Question
Download Solution PDFFor which of the following gates the output is zero when one or more inputs are zero?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFTypes of logic gates
1.) AND Gate
| A | B | Y = AB |
| 0 | 0 | 0 |
| 1 | 0 | 0 |
| 0 | 1 | 0 |
| 1 | 1 | 1 |
When any of the inputs is low, the output is always low.
When all the inputs are high, then only the output is high.
2.) OR gate
| A | B | Y = A+B |
| 0 | 0 | 0 |
| 1 | 0 | 1 |
| 0 | 1 | 1 |
| 1 | 1 | 1 |
When any of the inputs is high, the output is always high.
When all the inputs are low, then only the output is low.
3.) NOR Gate
| A | B | Y =\(\overline{A+B}\) |
| 0 | 0 | 1 |
| 1 | 0 | 0 |
| 0 | 1 | 0 |
| 1 | 1 | 0 |
When any of the inputs is high, the output is always low.
When all the inputs are low, then only the output is high.
4.) NAND Gate
| A | B | Y = \(\overline{AB}\) |
| 0 | 0 | 1 |
| 1 | 0 | 1 |
| 0 | 1 | 1 |
| 1 | 1 | 0 |
When any of the inputs is low, the output is always high.
When all the inputs are high, then only the output is low.
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