IBM 805 Test Scoring Machine

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The IBM 805 Test Scoring Machine was a machine sold by IBM beginning in 1937. The device scored answer sheets marked with special "mark sense" pencils. The machine was developed from a prototype developed by Reynold Johnson, a school teacher who later became an IBM engineer.

That machine and its descendants have been in use ever since.

[edit] See Reference

"Bulletin of Information on the International Test Scoring Machine." (New York: Cooperative Test Service, 1936)

IBM Archives web page on the 805 Test Scoring Machine

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