As a result of the fast-growing use of ITBS tests, he developed the first practical optical mark recognition system as a replacement for the electrical mark sense IBM 805 Test Scoring Machine.
IBM | Test cricket | Enigma machine | Rage Against the Machine | Test | Automated teller machine | IBM PC compatible | Victor Talking Machine Company | Crash Test Dummies | IBM DB2 | Soft Machine | The Time Machine | Linotype machine | Vickers machine gun | test pilot | River Test | IBM mainframe | DeLorean time machine | test | Darne machine gun | Rube Goldberg machine | MG 17 machine gun | The Wolseley Sheep Shearing Machine Company | Machine Head (band) | Machine Head | KPV heavy machine gun | IBM System/360 | IBM Personal Computer | Common Admission Test | Turing test |