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Circuit switching was created in 1878 and is the technology on which Alexander Bell built his telephone
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The first computer was invented by Charles Babbage (1822) but was not built until 1991!
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he concept of switching small blocks of data was first explored independently by Paul Baran at the RAND Corporation during the early 1960s in the US and 1965 in the UK.
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IT was formed in 1969
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TCP/IP was developed in the 1970s and adopted as the protocol standard for ARPANET (the predecessor to the Internet) in 1983.
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The first ever online email
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TCP/IP was developed in the 1970s and adopted as the protocol standard for ARPANET (the predecessor to the Internet) in 1983.
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Paul Mockapetris expanded the Internet beyond its academic origins by inventing the Domain Name System (DNS) in 1983.