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61867 Hollerith Tabulator, LEO I (1953)
Description of Photograph
Digital copy of a photograph of the British Tabulating Machines Hollerith Tabulator which was installed on LEO I.
Caption: 'Hollerith special tabulators printing @ 100 lines/minute on 100 columns all having 0-11 on every column. [ms] Nov 1953'.
Research comments: In his book, LEO: The First Business Computer, Peter Bird notes that the Hollerith tabulators supplied by BTM were special in that they were designed "to print the figures 10 and 11 together as one character, to handle the peculiar UK requirement of 10d and 11d sterling notation of that time" (pp68).
Date: November 1953
Physical Description: 1 digital image (jpeg); black & white; image includes original typed caption
Archives Hub References: CMLEO/LS/PH/1/61867
Comment on This Photograph
This exhibit has a reference ID of CH61867. Please quote this reference ID in any communication with the Centre for Computing History.