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typographical error

an error in printed or typewritten matter resulting from striking the improper key of a keyboard, from mechanical failure, or the like. Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2017.
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typographical error in Technology

(typo) An error while inputting text via keyboard, made despite the fact that the user knows exactly what to type in. This usually results from the operator's inexperience at keyboarding, rushing, not paying attention, or carelessness.
Compare: mouso, thinko.

The Free On-line Dictionary of Computing, © Denis Howe 2010
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