Optical Mark Reader
(OMR) A special scanning device that can read carefully placed pencil marks on specially designed documents. OMR is frequenty used in forms, questionnaires, and answer-sheets.
Last updated: 1995-04-13
optical grep ♦ Optical Mark Reader ♦ optical mouse ♦ Optical Signal Processor
Try this search on Wikipedia, Wiktionary, Google, OneLook.