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The punched card provided a significant profit stream for IBM and helped propel the company to the forefront of data processing. As late as the mid-1950s, punched card sales made up roughly 20% of IBM’s revenue and 30% of its bottom line.
19 mar 2009 · A history of Mobile Machine Records Units and IBM Punch Card Machines in World War II based on the activities of the 44th MRU (Mobile) in Patton's Third Army. The book also includes previously unknown information about Neil H. Shreve, the author of the "Patton Speech."
1 dzień temu · The IBM 024 (non-print) & 026 (print) Card Punch developed in 1949. As a key was depressed, a link on the key stem tripped a corresponding set of bails at the top of the keyboard assembly. 10 x Single Unpunched Stiff Paper Card. ... Sell now. Keypunch IBM Punch Card Unpunched, Vintage (10 cards) retrolumina (94) 100% positive; Seller's other ...
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