Testing Technology
As a result of the fast-growing use of ITBS tests, he developed the first practical optical mark recognition system as a replacement for the electrical mark sense IBM 805 Test Scoring Machine. Although many of his colleagues at the University of Iowa contributed to the invention, Lindquist is generally credited with this development and is the sole inventor listed on U.S. Patent 3,050,248 (Filed 1955, granted 1962).
Lindquist's first optical mark recognition scanner used a mimeograph paper-transport mechanism directly coupled to a magnetic drum memory. Although it was not a general purpose computer, it made extensive use of computer technology.
Read more about this topic: Everett Franklin Lindquist
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