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IBM Wheelwriter

Electronic typewriter introduced in 1984

  • 4 min read
  • 3 chapters

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Features

All models in the Wheelwriter range possess some amount of electronic memory, acting as a data buffer and allowing for a number of advanced features, including algorithmic centering of text on a line, basic spell-checking, and word-by-word erasure of text (either via white correction ribbon or via lift-off adhesive correction ribbon), among other features. The Wheelwriter can print in 10, 12, or 15 pitch monospaced fonts. All models except the Wheelwriter 3 and Actionwriter can use proportionally spaced print wheels.

The Wheelwriter is an electronic typewriter, meaning the keyboard is in no way mechanically linked to the printing function. The previous generation Selectric is an electrically assisted mechanical typewriter, relying on a single electric motor to power what can be considered a mechanical computer. The Wheelwriter is a keyboard and daisy wheel printer linked by a computer designed for typing Because of the drastically reduced number of moving parts, the Wheelwriter was considered by IBM engineers to be much more reliable and required less servicing than the Selectric.

A variant of the Wheelwriter, called the Wheelprinter, is essentially a Wheelwriter without the keyboard and with a parallel communication interface, allowing it to be used with a number of personal computers (including IBM's own PC). The Wheelprinter is capable of printing 25 characters per second.

Later entries in the line are capable of storing entire pages (for perfect duplication) and moving the printhead over predefined locations on a page (useful for batch filling out form fields). Such late models include such models as the Wheelwriter 1000 and Wheelwriter 7000 (the former for classroom and home use and the latter for enterprise use).

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