Mag-sign In
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
Paliwanag
The barcode scanner uses light to read barcodes.
Mga komento (0)
Mag-login Upang Magkomento
Advertisement
Payagan ang javascript na i-load nang maayos ang page na ito
