Punched card sorter (English Wikipedia)

Analysis of information sources in references of the Wikipedia article "Punched card sorter" in English language version.

refsWebsite

Global rank English rank

5web.archive.org

1^st place

1^st place

488^th place

374^th place

1,131^st place

850^th place

6^th place

6^th place

1tcgmachines.com

low place

low place

archive.org

Bashe, Charles J.; Johnson, Lyle R.; Palmer, John H.; Pugh, Emerson W. (1986). IBM's Early Computers. MIT. p. 21. ISBN 0-262-02225-7.

columbia.edu

"IBM Card Sorter". Archived from the original on 2021-04-29.

ibm.com

Which are sometimes named with a leading zero: IBM 080, 081, etc. "IBM Archives: Italy chronology". IBM.

tcgmachines.com

Gordon, Graeme (2021-04-10). "Card Sorting Machines – a Technology Older than the Automobile". TCG Machines. Retrieved 2024-01-03.

web.archive.org

"IBM Card Sorter". Archived from the original on 2021-04-29.
1901 Hollerith Automatic Horizontal Sorter
IBM Archives faq
IBM Archives: Hollerith 070 Vertical Sorter
IBM Archives: IBM Type 71 Vertical Sorter