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"Keyboard" Definition
Word Fact: Have you ever wondered why the English computer keyboard is set out in the way it is instead of in alphabetical order? The reason for this is on early typewriters, the keys needed to be arranged in a certain way so that the mechanical rods which held the letters did not clash too much and jam. The letters needed to be separated so that the ones which were most commonly used were not next to each other. source
noun
A set of keys, as on a computer terminal, word processor, typewriter, or piano.