A security control unit compares two binary sensor signals, S1S_1S1 and S2S_2S2, to determine whether an alert state AAA is triggered. The behavior of this logic unit is defined by the following truth table:
| S1S_1S1 | S2S_2S2 | AAA |
|---|---|---|
| 0 | 0 | 1 |
| 0 | 1 | 1 |
| 1 | 0 | 1 |
| 1 | 1 | 0 |
State the name of the single logic gate represented by this truth table.
30 exam-style questions on AQA GCSE Computer Science Boolean logic. Each one has a worked solution and a mark scheme showing where the marks go.