Keyboards (as used on typewriters and computers) were originally used to print out sheet music whilst playing the piano. However, the reduction of the musical scale from A-Z to A-G, and the removal of all numbers and characters, made the devices obsolete, and they were re-used for their current purpose
Many keyboards manufactured prior to 1993 were entirely unable to allow the word 'fandango' to be typed out, due to an inherent design flaw. Most would refuse to spell the word correctly, and a few would even hiss, generate smoke, and in severe cases, combust.
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