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External hardware devices exam tips
Study External hardware devices with curriculum-aligned Exam Tips resources, practice links, and exam-focused support.
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External hardware devices
Exam tips
Link the device to the situation
When asked which device is suitable, refer to the required operating conditions as well as naming the device.
A suitable answer explains why the device fits the context, such as a barcode reader for printed codes or RFID for identifying tagged objects using radio communication.
Link the comparison to the application
When judging whether a hard disk, optical disk or SSD is suitable, compare the application's required capacity and speed of access with the characteristics of the media.
The specification requires a judgement about suitability, so naming a device without explaining why it meets the application's requirements is incomplete.
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