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Search Results: "scanner"

photo scanner

A type of optical scanner designed especially for scanning photographs. Photo scanners are smaller than general-purpose scanners but offer high resolution.

http://www.webopedia.com/TERM/P/photo_scanner.html
flatbed scanner

A type of optical scanner that consists of a flat surface on which you lay documents to be scanned. Flatbed scanners are particularly effective for bound documents.

http://www.webopedia.com/TERM/F/flatbed_scanner.html



handheld scanner

A small handheld scanning device used for digitizing images. While images from a handheld scanner are considered low quality, today's technology enables full color 24 bit scanning.

http://www.webopedia.com/TERM/H/handheld_scanner.html
optical scanner

A device that can read text or illustrations printed on paper and translate the information into a form the computer can use. A scanner works by digitizing an image -- dividing it into a grid of boxes and representing each box with either a zero or a one, depending on whether the box is filled in.

http://www.webopedia.com/TERM/O/optical_scanner.html
virus scanner

Definition of the term 'virus scanner'

http://www.webopedia.com/TERM/V/virus_scanner.html
on-demand scanner

A type of antivirus program that actively scans your computer system for viruses only when prompted to do so by the computer user, or by scheduling it as a time-specific task. On-demand scanners, while used to scan hard drives can also be used to check removable storage devices before copying from those devices onto your system.

http://www.webopedia.com/TERM/O/on_demand_scanner.html
on-access scanner

A type of antivirus program which runs in the background and actively scans your computer system constantly for viruses and other malicious threats, for the entire duration that your system is powered on, unless paused by the computer user. On-access scanners will monitor all system activity and automatically scan files which have been downloaded from the Internet or through e-mail.

http://www.webopedia.com/TERM/O/on_access_scanner.html
command-line scanner

On Unix-based platforms a command-line scanner is a scanning tool that disinfects viruses, worms and Trojan horses in all major file types.

Also see The Difference Between a Virus, Worm and Trojan Horse in the Did You Know? section of Webopedia.

http://www.webopedia.com/TERM/C/command_line_scanner.html
How Fingerprint Scanners Work

Fingerprint readers, or scanners, are the most popular and most common form of biometric security devices used.

http://www.webopedia.com/DidYouKnow/Computer_Science/fingerprint.asp