Inventors of Computer Hardwares...

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1:Key board— Herman Hollerith,
first keypunch
devices in 1930’s
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2:Transistor— John Bardeen,
Walter Brattain & Wiliam
Shockley ( 1947-48)
- 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)