Chronological History of IBM


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C-T-R customers
In the years following World War I, C-T-R's engineering and research staff developed new and improved mechanisms to meet the broadening needs of its customers. In 1920, the company introduced the lock autograph recorder, the first complete school time control system, and launched the Electric Accounting Machine. In 1921, the company acquired the business of the Ticketograph Company of Chicago, and certain patents and other property of the Peirce Accounting Machine Company. The Carroll Rotary Press was developed in 1924 to produce cards at high speed, and punched card capacity was doubled.

C-T-R employee with scale
The growth and extension of C-T-R's activities made the old name of the company too limited, and, on February 14, 1924, C-T-R's name was formally changed to International Business Machines Corporation. By then, the company's business had expanded both geographically and functionally, including the completion of three manufacturing facilities in Europe.

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