DT WORK AT HOME

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• 2. subsystems or subtasks are events or tasks that happen within a system (4, 2, 1, 9)
• 3. systems and devices are triggered either manually or automatically using switches and sensors, switches are a common form of input. sensors can detect heat, light, movement and sound. (5, 10)
• 4. open loop systems do not make decisions based on feedback e.g. a toaster heats bread for a set period of time. (4, 4, 7)
• 5. most input components, especially sensors, work best in a potential divider. the input is connected to both the positive and negative of the power supply through appropriate components. it helps provide a consistent signal to an input pin. (10, 6)