Monday, July 4, 2011

The Electronic Keyboard Tetrad

Tetrad 2:  The Electronic Keyboard

Enhanced:  The ease of inputting data into a personal computer   

Obsolesced:  The electric typewriter.

Reversed:  The keyboard is setting the stage for other input devices or perhaps even a virtual keyboard.   

Retrieved from past:  The printing press used to input the English language and output the printed word.

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