The laser never reads the black bars. Here's why #HowItWorks #BarcodeScanner #TechExplained

A barcode scanner ignores the black bars entirely — it's the white gaps in between that encode every digit. Watch how a laser, a photodetector, and a decoder chip fire 1,000 reads per second without a single error. 🔍 Follow for more tech ripped open.

Видео The laser never reads the black bars. Here's why #HowItWorks #BarcodeScanner #TechExplained канала XRayMechanics