The IBM 805 Test Scoring Machine was an educational machine sold by IBM beginning in 1937.1 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.
References
References
- "IBM100 - Automated Test Scoring". www-03.ibm.com. 2012-03-07. Archived from the original on April 3, 2012. Retrieved 2021-11-27.
- "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
External link
Video of an electrographic pencil that was used for the test scoring machine