About: IBM 805 Test Scoring Machine

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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" 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.

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  • 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" 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. (en)
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  • 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" 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. (en)
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  • IBM 805 Test Scoring Machine (en)
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