Embedded Systems
What is an embedded system?
- An embedded system is a computer system with a single function, inside a larger mechanical unit
- Examples of embedded systems include
- Heating thermostats
- Hospital equipment
- Washing machines
- Dishwashers
- Coffee machines
- Satellite navigation systems
- Factory Equipment
- Traffic lights
What are the properties of an embedded system?
- They are small in size
- They use less power than a general-purpose computer
- They have a lower cost
Exam Tip
Always use key examples from the list above and don’t try to use different examples such as a fridge or kettle as these will not appear on mark schemes because although they have a single purpose, most fridges and kettles do not have a CPU.
Worked example
1) Tick two boxes below to show which are an example of an embedded system [2]
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Is it an example of an embedded system |
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Laptop |
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Washing Machine |
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Mobile Phone |
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Car Engine Management System |
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2) Justify your choice to question 1 [2] |
1) Tick two boxes below to show which are an example of an embedded system. [2]
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Is it an example of an embedded system |
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Laptop |
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Washing Machine |
✓ |
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Mobile Phone |
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Car Engine Management System |
✓ |
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2) Justify your choice to question 1 [2] |
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Any two of:
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