What are the technologies used behind the barcode or scanners?

Bar code scanner and method with magnetic and optical readers which technology is particularly used in barcode wand reader and barcode slot reader Wand; MICR; OCR; Laser scanner; None of the above A MICR B None of the above C A bar code reader is an electronic device that can which buffalo slot machine is the best Wand; MICR; OCR; Laser scanner; None of the above A MICR B None of the above C A bar code reader is an electronic device that can

which slot machines pay the best 2020 36) Which device includes fax features? Scanner MFD Printer ; 37) Which technology is particularly used in barcode wand reader and barcode slot reader? Camera