The IBM 1400 series were second generation (transistor) mid-range business decimal computers that IBM marketed in the early 1960s. 1400-series machines stored information in magnetic cores as variable length character strings terminated by a special flag. Arithmetic was performed digit-by-digit. Input and output support included punched card, magnetic tape and high speed line printers. Disk storage was also available.
Many members of the series could be used as independent systems, as extensions to IBM punched card equipment, or as auxiliary equipment to other computer systems. Some, however, were intended for specific applications or were economical only as independent systems.
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“There is in every either-or a certain naivete which may well befit the evaluator, but ill- becomes the thinker, for whom opposites dissolve in series of transitions.”
—Robert Musil (1880–1942)