A device used to input graphic images into the computer. Scanners look at or "scan" a piece of paper and put the images's information into digital form. Scanners come in three basic types: flat bed, sheet-fed and drum. They can also come as one part of a multifunction device that prints, copies, faxes and scans. Not covered in this category are barcode-scanners, radio frequency scanners, light scanners for stage/concert application and scanner software.