COMPUTER SCIENCE AND ENGINEERING
COMPUTER ORGANIZATION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Keyboard
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Mouse
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Bar code reader
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Scanner
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Detailed explanation-1: -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-2: -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-3: -The laser scanner is one of the more high-tech tools for barcode reading. In scanners of this type, the laser serves as a light that reflects through a series of mirrors or prisms that read the barcode. . Laser scanners are designed to read linear 1D barcodes and can read anywhere from six inches to two feet away.