various inventors of computer hardwares

1:   Key board— Herman Hollerith, first keypunch  devices in 1930’s

2:   Transistor— John Bardeen, Walter Brattain & Wiliam Shockley ( 1947-48)

3:  RAM— An Wang and Jay Forrester (1951)

4:   Trackball— Tom Cranston and Fred Longstaff  (1952)

5:  Hard Disk— IBM , The IBM Model 350 Disk File (1956 )

6:  Integrated Circuit— Jack Kilby & Robert Noyce ( 1958)

7:  Computer Mouse — Douglas Engelbart (1964)

8:  Laser printer— Gary Starkweather at XEROX in1969.

9:Floppy Disk— Alan Shugart &IBM ( 1970)

10:Microprocess­or— Faggin, Hoff & Mazor – Intel 4004  (1971)