The IBM 805 Test Scoring Machine was a educational machine sold by IBM beginning in 1937. The device scored answer sheets marked with special "

mark sense Electrographic is a term used for punched-card and page-scanning technology that allowed cards or pages marked with a pencil to be processed or converted into punched cards. The primary developer of electrographic systems was IBM, who used mar ...

" 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

*"Bulletin of Information on the International Test Scoring Machine." (New York: Cooperative Test Service, 1936)
IBM Archives
web page on th

805 __NOTOC__ Year 805 ( DCCCV) was a common year starting on Wednesday (link will display the full calendar) of the Julian calendar. Events By place Byzantine Empire * Siege of Patras: Local Slavic tribes of the Peloponnese lay siege to ...

IBM educational computers {{compu-hardware-stub

See also

References