9:02:00 AM
Pre-1900
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Long distance communications through a messenger, rider, smoke
signals, carrier pigeon, optical telegraph, electrical telegraph
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1890s
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Bell invents the telephone, telephone service expands rapidly
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1901
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Marconi’s firs transatlantic wireless transmission
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1920s
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AM radio
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1939
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Fm radio
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1940s
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Wwii spurs radio and microwave depelopment
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1947
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Shockley, barden and brittain invent the solid-state (semiconductor)
transistor
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1948
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Claude sahannon publishes “Amathematical theory of Communication”
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1950s
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Invention of integrated circuit
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1957
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Arpa is created by dod
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1960s
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Mainframe computing
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1962
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Paul baran at rand works on “packet switching”networks.
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1967
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Larry Roberts publisheds firs paper on Arpanet
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1969
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Arpanet established at at ucla, ucsb,u-utah, and Stanford
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1970s
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Widespread use of digital integrated circuit, advent of digital
personal computer
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Posts
August 9, 2012 at 9:07 AM �
selamat belajar....:)