Tabulating machine used in the 1920 United ?
Tabulating machine used in the 1920 United States census. It was a predecessor of electronic computers, and worked by mechanically reading punch cards with coded information
Picture No
10665627
Media ID
45210078
Size
3000px x 2190px
(1.2MB)
Credit
Mary Evans / Everett Collection
Usage Restrictions
Strictly editorial use only. Please contact Mary Evans if any other use required
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Restrictions Only for Ireland and United Kingdom
Census Coded Computation Computers Electronic Inventions Mechanical Mechanically Predecessor Readable Tabulating Tabulator
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