optical scanner

optical scanning

noun
the process of interpreting data in printed, handwritten, bar-code, or other visual form by a device (optical scanner or reader) that scans and identifies the data.


Origin:
1955–60
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2012.
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Optical scanner is always a great word to know.
So is quincunx. Does it mean:
an arrangement of five objects, as trees, in a square or rectangle, one at each corner and one in the middle.
a scrap or morsel of food left at a meal.
Collins
World English Dictionary
optical scanner
 
n
See also optical character reader a computer peripheral device enabling printed material, including characters and diagrams, to be scanned and converted into a form that can be stored in a computer

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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American Heritage
Science Dictionary
optical scanner  
A device that converts printed images and text into digital information that can be edited, transmitted, and stored. Optical scanners work by electronically measuring the intensity of color at a large number of individual locations across the page (often using phototransistors), and converting these measurements into digital numerical values usable by computers and other digital devices. See also A/D converter.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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