Inventors of Computer Hardwares

1:Keyboard— Herman Hollerith, first keypunch devices in 1930’s
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2:Transistor— John Bardeen, Walter Brattain & Wiliam Shockley ( 1947-48)
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3:RAM— An Wang and Jay Forrester (1951)
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4:Trackball— Tom Cranston and Fred Longstaff (1952)
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5:Hard Disk— IBM , The IBM Model 350 Disk File (1956 )
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6:Integrated Circuit— Jack Kilby & Robert Noyce (1958)
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7:Computer Mouse — Douglas Engelbart (1964)
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8:Laser printer— Gary Starkweather at XEROX in1969.
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9:Floppy Disk— Alan Shugart &IBM( 1970)
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10:Microprocess­or— Faggin, Hoff & Mazor – Intel 4004 (1971)