File:IBM 1403 printer chain.jpg - Wikipedia

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IBM 1401 - Wikiwand

Ken Shirriff's blog: 2018

1403 Fonts and Chains

How the IBM 1403 Printer Hammered Out 1,100 Lines Per Minute - IEEE Spectrum

Main / Printers

Printer (computing) - Wikiwand

IBM 1401 - Wikiwand

File:IBM 1403 printer chain.jpg - Wikipedia

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Accounting machines, the IBM 1403, and why printers standardized on 132 columns

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