IBM 1401 photograph

IBM 1401

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Introduced1959
Date introducedOctober 5, 1959
Encoding Variable
Bits6-bits plus word mark and parity
Design CISC
Endianness Big
Date of Reg.
Date of Upd.
ID2141372
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About IBM 1401


The IBM 1401 is a variable-wordlength decimal computer that was announced by IBM on October 5, 1959. The first member of the highly successful IBM 1400 series, it was aimed at replacing unit record equipment for processing data stored on punched cards and at providing peripheral services for larger computers.

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