0 a device that takes a picture of visual information and changes it into a form that a computer can store and show on its screen:
Some devices, such as optical mark readers, enable data to be entered directly, without human intervention.
Optical data readers can be used to scan a document and make sense of the patterns it finds within the document.
The optical reader scans number plates and compares them against stolen vehicles.
Many industries make use of voice recognition, optical data readers, and bar code scanners.
The optical reader misread one of the handwritten digits in the Zip code.
They use scanning technology, in which voters fill out paper ballots that are then put through optical readers.