FOUNDERS OF DEVICES RELATED TO COMPUTER
Keyboard-------------- Christopher Latham Sholes (1868)
Mouse------------------Douglas Engelbart (1964)
Printer-------------------Johannes Gutenberg (1938)
Computer---------------Charles Babbage (1936)
Transistor.....................William Shokley, Walter Houser Brattain and John Bardeen (1947)
Scanner ------------------Bell Labs (1970)
Speaker-------------------John Edward W. Kellog (1898)
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