Computer Devices & their Inventors 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(data by facebook/cnaonweb RAM— An Wang at Harvard University’s Computation Lab and Jay Forrester at MIT.1951 Laser printer— Gary Starkweather at XEROX in 1969. (data by facebook/cnaonweb 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. Read More.......shriramedu/gk/computer-devices-their-inventors/ सामान्य ज्ञान के लिए- shriramedu/gk/ समसामयिकी & टेस्ट पेपर के लिए- shriramedu/gk/general-gk/ सरकारी नौकरीयों के लिए- shriramedu/job/ नियमित टेस्ट पेपर के लिए- shriramedu/currentaffair/test-series/ Share with your friends……….श्रीराम कोचिंग, सीकर कृपया अपना कमेन्ट अवश्य लिखें…..
Posted on: Tue, 28 Oct 2014 09:55:42 +0000