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Definition

inventor

date of invention

semiconductorwww.inventors.about.com/library/inventors/blmicrochip.htmAn element, such as silicon, that is intermediate in electrical conductivity between conductors and insulators, through which conduction takes place by means of holes and electrons.Robert Noyce

microprocessorwww.ideafinder.com/history/inventions/microprocessor.htm - 24kA master control circuit.Ted Hoff1968

circuit boardhttp://www.answers.com/circuit%20boardBoards used in electronic devices that are made from an insulating material and contain electronic components that are interconnected to form a circuit or group of circuits that perform a specific function.Charles Ducas 1850s

radiohttp://inventors.about.com/od/rstartinventions/a/radio.htmAn instrument that uses radio waves to communicate with other vesselsNikola Tesla1943

bluetoothhttp://www.theregister.co.uk/2004/09/06/ericsson_drops_bluetooth_dev/A wireless connection that enables devices to exchange information.Ericsson

televisionhttp://www.videouniversity.com/farnhal.htmTelevision is a telecommunication system for broadcasting and receiving moving pictures and sound over a distancePhil, Cliff1927

mechanical computerhttp://www.answers.com/mechanical%20computerhttp://www.diycalculator.com/popup-h-mechcomp.shtmlA machine such as a Charles Babbage's analytical engine.Joseph-Marie Jacquard early 1800s

electrical computer

digital computerhttp://www.reference.com/search?q=digital%20computerA programmable machine which operates using binary digital data.
CD romwww.web.mit.edu/invent/iow/russell.html Compact Disk Read-Only MemoryRussell1970s

DVDwww.web.mit.edu/invent/iow/thomasf.html

Digital Versatile Disc Warren Lieberfarb 1996