Computer Science for IGCSE & O level - Hardware (Section 16 - No. 47) | ExamPlay

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Computer Science for IGCSE & O level - Hardware (Section 16 - No. 47)

What technology does the barcode scanner typically use?

Radio waves

Light reflection

Magnetic fields

Infrared sensors

Wyjaśnienie

The barcode scanner uses light to read barcodes.

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