MANAGEMENT

Detailed explanation-1: -A barcode reader 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 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: -In the early days of 1D codes, codes could only be read by lasers. Laser scanners use a laser beam as a light source and typically employ oscillating mirrors or rotating prisms to scan the laser beam back and forth across the barcode. A photodiode then measures the reflected light from the barcode.

Detailed explanation-4: -CCD. A charge coupled device (CCD), also known as an LED scanner, features hundreds of tiny LED lights arranged in one long row. These lights are shot directly onto a barcode, and a sensor then measures not the reflection, but voltage of the ambient light directly in front of each lightbulb.

Detailed explanation-5: -There are five main types of barcode readers. These are pen wands, slot scanners, Charge-Couple Device (CCD) scanners, image scanners, and laser scanners.