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Variable-wordlength decimal computer
- 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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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. [1]
A computer didn’t have to be as big as a room and at the service of just large corporations — it could fit comfortably in the office of a medium-size company or lab, and each department could afford to have one of its own. The 1401 convinced enterprises of all sizes that a computer was essential to their daily operation.
Feb 19, 2015 · The 1401 was a “stored program computer,” allowing programmers to write (and share) applications loaded into the machine from punched cards or magnetic tape, all without the need to physically reconfigure the machine for each task.
The 1401, announced on October 5, 1959, is the first member of the IBM 1400 series. It was the first computer to deploy over 10,000 units. The IBM 1410 has a similar design, but with a larger address space. The IBM 1460 is logically, but not physically, identical to a 1401 with all of the options, with 16,000 characters of memory, and twice as ...
Jan 18, 2001 · The 1401 was a decimal (not binary) computer, with variable-length words composed of 8-bit bytes containing 6-bit BCD ( binary coded decimal) characters (plus parity and wordmark bits), and was intended primarily for business applications (its scientific counterpart was the 1620 ).
The 1401 introduced thousands of businesses and institutions to stored-program computing while its tape and disk systems freed them from the decades-long practice of storing data on punched cards. Additionally, the 1401 was one of IBM’s earliest transistorized computers. BACKGROUND.
history of computers. In computer: The IBM 360. …computers of one model: the IBM 1401. The chain printer required a lot of magnetic core memory, and IBM engineers packaged the printer support, core memory, and disk support into the 1401, one of the first computers to use this solid-state technology.
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