A-LevelComputer ScienceHardware9618/12 · Oct/Nov 2025 · Q113 Marks

An automated system opens doors when a person is detected within 2 metres. The system closes the doors when there is no longer a person within 2 metres. Identify whether the automated system is an example of a monitoring system or a control system. Justify your choice. Monitoring or Control Justification

An automated system opens doors when a person is detected within 2 metres. The system closes the doors when there is no longer a person within 2 metres. Identify whether the automated system is an example of a monitoring system or a control system. Justify your choice. Monitoring or Control Justification[3]

Mark scheme

Marking points from the official mark scheme (Oct/Nov 2025). The mark or mark type is shown in brackets.

11 1 mark per bullet point, max 3 marks
Identification: Control system (no mark)
Justification:
The system uses an actuator to open or close the doors
The output / opening the doors allows people to move, which changes the input to the sensor
The system acts autonomously on the feedback from a sensor

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Topic: Hardware, A-Level Computer Science (syllabus 9618). Structured question, 3 marks.
Source: A-Level Computer Science, Oct/Nov 2025 Paper 1 Variant 2, question 11.

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