Computer Science · Oct / Nov 2023 · Paper 12 · Question 4
0478
As printed in the paper
The question as text
A washing machine is an example of an embedded system.
Read automatically from the paper; the printed page above is exact.
Show the answer and mark scheme
4(a)[2]
Any two from:
Performs a single/limited/dedicated function/taskIt has a microprocessorIt has dedicated hardwareUses firmwareIt is normally built into a larger device/systemUser normally cannot reprogramIt does not require much powerIt is cheap to manufactureWorks automatically // works without human interventionIt is small (in size)It is a real-time system4(b)[3]
One mark for each correct system:
security light systemfreezervending machine
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