The following logic gates will be two inputs and one output.
The input will be binary, 1 or 0.
In general Y = A.B
A.B = 1 only if both A and B are 1.
| A | B | Y |
|---|---|---|
| 0 | 0 | 0 |
| 0 | 1 | 0 |
| 1 | 0 | 0 |
| 1 | 1 | 1 |
In general Y = A+B
A+B = 1 if A = 1 or B = 1. This includes when A and B is 1.
| A | B | Y |
|---|---|---|
| 0 | 0 | 0 |
| 0 | 1 | 1 |
| 1 | 0 | 1 |
| 1 | 1 | 1 |
In general $Y = \bar{A}$.
$\bar{A}$ = 1 when A = 0. $\bar{A}$ = 0 when A = 1.
| A | Y |
|---|---|
| 0 | 1 |
| 1 | 0 |
In general $Y = \overline{A.B}$