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Doctors Medicines MCQs Q&A

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Because modern keyboards evolved from old mechanical typewriters. On those, each key has an arm that punches the letter through the ink ribbon onto the paper. They organized the letters in such an manner that the most often-used letters are never next to each other to avoid two of those arms getting hooked into each other, blocking the typewriter. By the time electronic keyboards rolled around, many typists had already learned how to speed type, so they kept the same keyboard layout.

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