Rahul Khadse
Exclusive from (1001 Inventions That Changed the World) Book
Blog
Provider
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RHN
Group Of Cyber World
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Administrator
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Rahul
Shampe
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Preface
by
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Trevor
Baylis
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General
editor
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Jack
Challoner
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Patent processed at
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U.S.
Patent Office in Washington, DC
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Published
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By
Hachette India in 2013©
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Official
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Blog
No
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5
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Contain Type
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The
Internet Age
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Invention
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Internet
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Year
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1969
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In 1963, the Advanced Research
Project Agency (ARPA) unit, set up by the USD. Defense Department began to
build a computer network. Driven by the fear of the soviet nuclear threat, it
aimed to link computers at different locations. So researchers could share data
electronically without having fixed route between them. Making the system less
vulnerable to attacks even nuclear ones.
Data
was converted into telephone signals using a modem (Modulator – demodulator),
developed at AT&T in the late 1950s. In the 1960s, key advance were made,
including “packet Switching” – the system of packaging, labeling, & rotting
data that enables it to be delivered across the network between machines. Paul
Baran (b.1926) proposed this system, which broken each message down into tiny chucks.
These would be fired into the network, which would then route (“switch”) the
various pieces to the desired destination. So if chucks of a message were destination
so, if chunks of a message were travelling from Seattle
to new york via Dallas, but Dallas suddenly went offline, the network would
automatically rout via Denver instead different parts – or “packets” – of a
message would go by different routes, before being reassembled back into the
original message at their destination, even if they arrived in the wrong order.
Bran published his concept in 1964, & five years later the new network –
called ARPANET – went live.
As
threat of nuclear war reduced in the early 1970s, ARPANET was renamed the
internet & effectively opened to all users. Since then, the development of
e mail, the creation of the World Wide Web & browser technology has enabled
the internet to be a rich “communications” facility.
Mitchell Kapor, Software Designer -
“Greeting Information off the internet is like
taking a drink from a fire hydrant”
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Word Meanings-
- Chunk – A thick, solid piece or a large amount.
Posted in: The Internet Age
