A ..... is a standard set of systematic buttons that is laid out on a pad-type device. People use this when they need to type words and operate a computer

English as a Second Language English Vocabulary, Grammar and Idioms
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A ..... is a standard set of systematic buttons that is laid out on a pad-type device. People use this when they need to type words and operate a computer. (*) keyboard (*) lock (*) printer (*) scanner

This is a companion discussion topic for the original entry at https://english.best/questions/17755,a-___-is-a-standard-set-of-systematic-buttons-that-is-laid-out-on-a-pad-type-device-people-use-this-when-they-need-to-type-words-and-operate-a-computer/
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