An automated garden watering system activates when the soil is dry and it is evening, or if the manual override switch is pressed.
The system inputs are defined as:
The logic statement representing the system is:
Active=(A AND B) OR C \text{Active} = (A \text{ AND } B) \text{ OR } C Active=(A AND B) OR CComplete the truth table to show the output for each combination. Two rows have been done for you.
| A | B | C | A AND B | (A AND B) OR C |
|---|---|---|---|---|
| 0 | 0 | 0 | 0 | 0 |
| 0 | 0 | 1 | ||
| 0 | 1 | 0 | ||
| 0 | 1 | 1 | ||
| 1 | 0 | 0 | ||
| 1 | 0 | 1 | ||
| 1 | 1 | 0 | ||
| 1 | 1 | 1 | 1 | 1 |
10 exam-style questions on Edexcel IGCSE Computer Science Logic. Each one has a worked solution and a mark scheme showing where the marks go.