Computer hardwares and their Inventors.

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)