#28 Inventors of Computer Hardware

 1. Key board — Herman Hollerith, first keypunch device in 1930’s
 2. Transistor — John Bardeen, Walter Brattain & Wiliam Shockley (1947 - 1948)
 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 Stark weather at XEROX in 1969.
 9. Floppy Disk— Alan Shugart & IBM( 1970)
 10. Microprocessor — Faggin, Hoff & Mazor – Intel 4004