Results 141 to 150 of about 26,417 (186)
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A backward glance. Arriving at the punched-card system
IEEE Spectrum, 2000Herman Hollerith's punched-card machine for the US Census office consisted of: a bank of counters for tabulating results; a hand-operated reader that pushed wire contacts through the holes in the card into pools of mercury, completing an electrical circuit; and a sorting box with bins for holding the cards after they were read.
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A Punch Card System for Identification of Bacteria
American Journal of Clinical Pathology, 1964S S, SCHNEIERSON, D, AMSTERDAM
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Simple input switching for a punched card data acquisition system
Journal of Physics E: Scientific Instruments, 1971A method is described whereby the programming drum card on an IBM punch is used to control input selection and timing in a card data acquisition system.
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Punched Card System for Radioisotopes
Analytical Chemistry, 1954H. R. Lukens +2 more
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A Marginal Punched Card System for Human Factors Literature
Human Factors: The Journal of the Human Factors and Ergonomics Society, 1959This article describes the marginal punched card bibliographic system used by the Human Factors Group at Douglas Aircraft Company, Santa Monica, California. The need for such a system, its development, and its merits are discussed.
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A CONVENIENT PUNCHED-CARD FILING SYSTEM
Soil Science, 1962CHAUNCY O. STANBERRY +1 more
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A personal punch card system for the relocation of references
British Dental Journal, 1974openaire +2 more sources
A CONVENIENT PUNCHED-CARD SYSTEM FOR LITERATURE REFERENCES IN NEUROCHEMISTRY
Canadian Journal of Biochemistry, 1965R, FRIED, L W, FRIED
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A punched Card System for an Analytical Laboratory
Journal of Chemical Documentation, 1961openaire +1 more source