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Flatbed scanners are electronic devices primarily used in conjunction with computers to digitize physical documents, photographs, and other printed materials. They function by projecting light onto the surface of the item being scanned and capturing the reflected image using an array of sensors. This captured image is then processed and converted into a digital format that can be saved, edited, or shared electronically. Flatbed scanners are characterized by their horizontal design, which allows users to place items directly onto the glass surface for scanning. They are commonly used in offices, homes, and schools as a convenient way to convert physical documents into digital formats.