Question

what is an optical mark reader used for​

Answer 1

Optical Mark reading (OMR) is a method of entering data into a computer system.

Optical Mark Readers reads pencil or pen marks made in pre-defined positions on paper forms as responses to questions or tick list prompts.

Answer 2

Answer:

$\huge \tt {Optical \: mark \: reader}$

☛ Optical mark reader is device which is capable of reading printed forms used in objective type exams with boxes or circles that can be filled with a dark pencil or ink.

☛When light beam passes through such a form , the marked areas reflect less light than the unmarked one.

☛This technology is called optical mark reader.

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