Optical scanner

An optical scanner is a hardware input device that allows a user to take an image or text and convert it into a digital file, allowing the computer to read or display the scanned object. A scanner can be connected to a computer using USB, Firewire, Parallel, or a SCSI port. In the picture to the right, is an example of a flatbed photo scanner, the Epson V300.
Other scanners include: sheetfed scanner, which is a scanner that scans paper fed into it, handheld scanner, which is a scanner that is held and drag over a page to scan it, and a card scanner, which is a small scanner capable of scanning business cards.
Flatbed scanner

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