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New Products (PDF)
September 1975 (vol. 8 no. 9)
pp. 58-63
D.A. Michalopoulos, California State University
A new optical mark reader system that checks and grades test papers at the rate of 7000 answer sheets an hour has been introduced by National Computer Systems of Minneapolis.
Citation:
D.A. Michalopoulos, "New Products," Computer, vol. 8, no. 9, pp. 58-63, Sept. 1975, doi:10.1109/C-M.1975.219077
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