Optical Mark Reader (OMR) is a high-tech data input computer peripheral that integrates optical, mechanical and electrical technology. It reads the information from the filled parts of form in the principle of the transform between optics and electricity, and then it transfers the information into computer through data cable.As an input device of computer, OMR replaces manual input and overcomes low input speed by hand, one hundred times faster than that in manual way. What is more, it realizes zero error, which is superior to other techniques in this field.