Inventors of Computer Hardware's/Grab knowledge

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)