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Computers
Barcode scanners are light emitting devices that are used to read barcodes. Usually attached to a computer or laptop via PS2 or RS-232, the data collected is stored on a computer for processing or storage.it is important you know there are 2 major classes of barcode scanners, image-based and laser-based. Image-based barcode scanners use a camera usually embedded in a barcode scanner.
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Laser barcode scanners are usually more expensive than image-based scanners. They have their own pros and cons. An image-based barcode scanner do not have internal movable parts therefore are more resistant to drops or knocks than laser barcode scanners. Also, image-based barcode scanners have a shorter scanning distance (4 to 10 inches) compared to laser barcode scanners.
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