AQA GCSE Product Design: 1.4 - Understanding a Systems Approach When Designing
Systems Approaches:
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- What happens to allow it to work? - Input
- How does it do it? - Process
- What does the product do? - Output
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Inputs:
- What the product reacts to
- LDR: Light-dependant resistor
- Thermistor: Temperature sensors
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Processes:
- How the product reacts
- Microcontrollers: Electrical processes performed on these.
- PIC chips: Reprogrammable flash memory.
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Outputs:
- The reaction
- LEDs: Light-emitting diodes. Filaments made of tungsten
- Buzzers and speakers: Give out sound as an output. Used in alarms, timers, computer mice and loudspeakers.
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