COMPUTER HARDWARE COMPONENTS FUNCTIONS
COMPUTER OUTPUT DEVICES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Input
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Output
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Both
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None of the above
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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: -This method uses a semiconductor device called CCD(Charge Coupled Device), which converts light signals into electric signals. The CCD method bar code scanner has a built-in light. A scanner shines this light at a bar code and its reflection is captured via CCD for reading.
Detailed explanation-4: -A barcode reader (or barcode scanner) is an electronic device that can read and output printed barcodes to a computer. From corded to cordless such as Bluetooth scanners, standard scanning type can choose from Linear imaging, Laser, 2D to RFID Reader.
Detailed explanation-5: -A barcode scanner (also referred to as a barcode reader) is a device that captures and decodes the information contained by a barcode.