Scanners are input devices that can electronically capture text or images such as photographs and drawings. The scanner converts the image into digital data that can processed by the computer.
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- Hand-held scanners - These devices are used for entering text and images that are less than a page wide. The scanner is held in the hand and passed over the document. Hand-held scanners are adequate for small pictures and photos but are difficult for entire pages. Software is used to join scanned items to make a full page.
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- Flatbed scanner - These devices look similar to a small photocopier with the document remaining flat and stationary during the scanning.
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- Overhead scanner - These devices look like an overhead projector. Documents are placed face up on the scanning bed and a small overhead tower moves across the page.
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