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File:1890 Census Hollerith Electrical Counting Machines Sci Amer.jpg

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current01:17, 16 May 2012Thumbnail for version as of 01:17, 16 May 2012622 × 480 (99 KB)wikimediacommons>Infrogmation{{Information |Description=The Hollerith electric tabulating machine being used for the 1890 U.S. A. Census. |Source= Illustration in "Scientific American" magazine, Aug. 30, 1890. Via reproduction at [http://www.officemuseum.com/data_processing_machi...
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