IBM 805 Test Scoring Machine
Encyclopedia
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.
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. That technology was sold by IBM, its developer, under the term mark sense...
" pencils. The machine was developed from a prototype developed by Reynold Johnson
Reynold B. Johnson
Reynold B. Johnson was an American inventor and computer pioneer. A long-time employee of IBM, Johnson is said to be the "father" of the disk drive...
, a school teacher who later became an IBM engineer. That machine and its descendants have been in use ever since.