Since this article was written, Radio Shack has improved the TRS-80 in ways that make it more attractive for word processing. First, they have im proved the keyboard considerably. Keyboards on new units are entirely usable. Second, there is an official lower case modification that is installed by Radio Shack technicians, and it works well. Small Systems Software sells a version of the Electric Pencil that works with this lower case modification. Third, the cassette storage reliability has been improved so tapes are nearly always recorded suc cessfully. These improvements make the TRS-80/ Electric Pencil even more attractive.
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Richard A. Hatch (1980) studied this question.
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