Ключевые слова: application, background, bar, bar codes, binary, business, camera, capture, code, commerce, communication, concept, connection, connectivity, data, digital, display, electronic, equipment, gadget, generating, hand, hold, id, identification, identity, information, internet, label, man, media, mobile, phone, photo, picture, price, product, qr code, quick, reader, scan, scanner, scanning, screen, smartphone, symbol, technology, telephone, white,