Examples of embedded systems

1.1.3 Embedded Systems

Embedded Systems — Note 2 of 2

What you need to know

Embedded systems are found in many everyday devices. Being familiar with examples helps you understand how they are applied in real-world scenarios and answer context-based exam questions.

What to know

Washing machines — embedded systems control water temperature, cycle timing, and motor speed.
Microwave ovens — embedded systems manage cooking time, power levels, and safety features.
Traffic lights — embedded systems control timing sequences and respond to sensors.
Car examples: auto lights, auto wipers, sat nav/GPS, cruise control, parking sensors, engine management, lane assist, climate control.
Other examples: central heating thermostats, fitness trackers, digital watches, dishwashers.

Exam technique

Tip:In context questions, identify what the embedded system CONTROLS and explain that it has LIMITED FUNCTIONS dedicated to that specific task.
Mistake:Giving examples outside the context. If asked 'identify an embedded system in a car', do NOT give 'washing machine' — stay within the scenario given.
Tip:For 3-mark questions, give: (1) a valid example, (2) it has limited/specific functions, (3) it has a dedicated microprocessor or the user cannot change its function.

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