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Key board— Herman Hollerith first keypunch devices in 1930’s
Transistor— John Bardeen, Walter Brattain & Wiliam Shockley ( 1947-48)
Integrated Circuit— Jack Kilby & Robert Noyce( 1958)
Trackball— Tom Cranston and Fred Longstaff (1952)
Computer Mouse — Douglas Engelbart (1964)
Microprocessor – Intel 4004 Computer
Microprocessor— Faggin, Hoff & Mazor (1971)
Floppy Disk— Alan Shugart &IBM
RAM— An Wang at Harvard University’s Computation Lab and Jay Forrester at MIT.1951
Laser printer— Gary Starkweather at XEROX in 1969.
Hard Disk— The IBM Model 350 Disk File by IBM in 1956 (was the first hard disk drive and was part of
the IBM 305 RAMAC computer that IBM started delivering in)
First PC— the IBM 5100 Portable Computer by IBM
First laptop— Grid Compass 1100 (called the GRiD) and was designed in 1979 by a British industrial
designer, Bill Moggridge.
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