Ключевые слова: automatic, bar, barcode, black, blue, business, buying, checkout, code, coding, counter, data, device, digital, display, electronic, equipment, hand, handheld, held, human, image, information, infrared, input, isolated, label, laser, light, line, manual, market, merchandise, number, numbers, palm, reader, reading, retail, sale, scan, scanner, scanning, sensor, shopping, store, technology, warehouse,