COMPUTER FUNDAMENTALS

Detailed explanation-1: -A barcode reader or barcode scanner is an optical scanner that can read printed barcodes, decode the data contained in the barcode to a computer. Like a flatbed scanner, it consists of a light source, a lens and a light sensor for translating optical impulses into electrical signals.

Detailed explanation-2: -A BCR (barcode reader) or scanner, also known as a POS (point of sale) scanner is a hardware input device capable of reading a barcode using a laser. It can also load the details of the product or log information about that product into a database.

Detailed explanation-3: -A barcode scanner, or barcode reader, is a device with lights, lenses, and a sensor that decodes and captures the information contained in barcodes. In the early days of 1D codes, codes could only be read by lasers.

Detailed explanation-4: -Laser barcode scanners use a visible and repetitive “flashing” laser light beam, commonly used to track inventory and to enter purchases into a computerized management system.