| Gate Type | Real-World Application | Logic Explanation |
|---|---|---|
| AND | Car starting system | Key inserted AND brake pressed → Engine starts (both conditions required) |
| AND | Microwave oven | Door closed AND Start pressed → Microwave runs (safety requirement) |
| OR | Home security alarm | Window broken OR Door forced → Alarm sounds (either triggers alert) |
| OR | Smart lights | Voice command OR Motion sensor → Light turns on (multiple triggers) |
| NOT | Refrigerator light | NOT(door closed) → Light on (light when door is open) |
| NOT | Automatic doors | NOT(obstruction detected) → Door closes (inverts sensor signal) |
This key facts covers Real-World Examples of Logic Gates within Logic Gates for GCSE Computer Science. Revise Logic Gates in 3.4 Computer Systems for GCSE Computer Science with 16 exam-style questions and 20 flashcards. This is a high-frequency topic, so it is worth revising until the explanation feels precise and repeatable. It is section 7 of 9 in this topic. Use this key facts to connect the idea to the wider topic before moving on to questions and flashcards.
Practice questions for Logic Gates
An AND gate has inputs A=1 and B=0. What is the output?
Complete the truth table for an OR gate with two inputs A and B. | A | B | Output | |---|---|--------| | 0 | 0 | | | 0 | 1 | | | 1 | 0 | | | 1 | 1 | |