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  2. Unit record equipment - Wikipedia

    en.wikipedia.org/wiki/Unit_record_equipment

    The Tabulating Machine Company begins its collaboration with Benjamin Wood, Wallace John Eckert and the Statistical Bureau at Columbia University. [35] [8]: 67 The Tabulating Machine Company's 80-column card introduced. Comrie uses punched card machines to calculate the motions of the moon. This project, in which 20,000,000 holes are punched ...

  3. Tabulating machine - Wikipedia

    en.wikipedia.org/wiki/Tabulating_machine

    The 301 (better known as the Type IV) Accounting Machine was the first card-controlled machine to incorporate class selection, automatic subtraction, and printing of a net positive or negative balance. Dating to 1928, this machine exemplifies the transition from tabulating to accounting machines. The Type IV could list 100 cards per minute.

  4. Herman Hollerith - Wikipedia

    en.wikipedia.org/wiki/Herman_Hollerith

    Herman Hollerith (February 29, 1860 – November 17, 1929) was a German-American statistician, inventor, and businessman who developed an electromechanical tabulating machine for punched cards to assist in summarizing information and, later, in accounting.

  5. Soviet locomotive class TE3 - Wikipedia

    en.wikipedia.org/wiki/Soviet_locomotive_class_TE3

    The ТE3 (Russian: ТЭ3; Ukrainian: ТЕ3) is a Soviet diesel-electric locomotive, built in Russia and Ukraine to 1520 mm gauge. It is a two-unit Co’Co’+Co’Co’ machine. Total diesel power is 2,940 kW (3,940 hp; 4,000 PS). They were built from 1953 to 1973. [1]

  6. John Oldham (engineer) - Wikipedia

    en.wikipedia.org/wiki/John_Oldham_(engineer)

    In 1812 the machine was adopted by the Bank of Ireland, and he received the appointment of engineer and chief engraver. [2] In 1837 Oldham entered the service of the Bank of England, where he introduced improvements in the machinery for printing and numbering banknotes. This machinery continued in use until 1852–3, when the system of surface ...

  7. List of IEC standards - Wikipedia

    en.wikipedia.org/wiki/List_of_IEC_standards

    IEC 60135 Numbering of electrodes and designation of units in electronic tubes and valves; IEC 60136 Dimensions of brushes and brush-holders for electrical machinery; IEC 60137 Insulated bushings for alternating voltages above 1000 V; IEC 60139 Preparation of outline drawings for cathode-ray tubes, their components, connections and gauges