MANAGEMENT

Detailed explanation-1: -Barcode information is read by an optical (laser) scanner that is part of a computer system. A handheld scanner or barcode pen is moved across the code, or the code itself is moved by hand across a scanner built into a checkout counter or other surface.

Detailed explanation-2: -A barcode reader, also called a price scanner or point-of-sale (POS) scanner, is a hand-held or stationary input device used to capture and read information contained in a barcode.

Detailed explanation-3: -Laser light is shone on the label surface and its reflection is captured by a sensor (laser photo detector) to read a bar code. A laser beam is reflected off a mirror and swept left and right to read a bar code Using laser allows reading of distant and wide bar code labels.

Detailed explanation-4: -Like other input devices, a barcode reader is bringing in (inputting) information from the outside world into a computer or other electronic device. If the barcode reader also has a screen that displays (outputs) results or prints results, it would be considered an input/output device.