Which term refers to a device that scans documents into digital form?

• A. Digital Scanner
• B. Fax Machine
• C. Optical Scanner
• D. Document Scanner

Answer: (C)

Scanning a document into digital form relies on optical sensing: using light and sensors to read the page and convert what you see into digital data. An optical scanner is designed specifically for this purpose, translating the visual content into a digital image or file that a computer can store, edit, or search. While a document scanner is a general term for a device that scans documents, the emphasis here is on the method of capture—optical reading—so the label that most precisely describes how the device works is optical scanner. A fax machine can perform scanning, but its primary role is to transmit the scanned image to another location, and digital scanner isn’t a standard, precise term.