History of the Internet
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The history of the Internet dates back to the early development of
communication networks. The idea of a computer network intended to
allow general communication between users of various computers has
developed through a large number of stages. The melting pot of
developments brought together the network of networks that we know
as the Internet. This included both technological developments, as
well as the merging together of existing network infrastructure and
telecommunication systems.
The earliest versions of these ideas appeared in the late 1950s.
Practical implementations of the concepts began during the late
1960s and 1970s. By the 1980s, technologies we would now recognize
as the basis of the modern Internet began to spread over the globe.
In the 1990s the introduction of the World Wide Web saw its use
become commonplace. |
The infrastructure of the Internet would spread across the globe, to
create the modern world wide network of computers we know today. It
spread throughout the western nations, and then begged a penetration
into the developing countries, thus creating both unprecedented
worldwide access to information and communications and a digital
divide in access to this new infrastructure. The Internet would also
go on to fundamentally alter and affect the economy of the world,
including the economic implications of the dot-com bubble.
Prior to the widespread inter-networking that led to the Internet,
most communication networks were limited by their nature to only
allow communications between the stations on the network. Some
networks would have gateways or bridges between them, but these
bridges were often limited or built specifically for a single use.
One prevalent computer networking method was based on the central
mainframe method, simply allowing its terminals to be connected via
long leased lines. This method was used in the 1950s by Project RAND
to support researchers such as Herbert Simon, in Pittsburgh,
Pennsylvania, when collaborating across the continent with
researchers in Santa Monica, California, on automated theorem
proving and artificial intelligence.
A fundamental pioneer in the call for a global network, J.C.R.
Licklider, grasped the need for a global network in his January 1960
paper, Man-Computer Symbiosis.
"a network of such (computers), connected to one another by
wide-band communication lines" which provided "the functions of
present-day libraries together with anticipated advances in
information storage and retrieval and (other) symbiotic functions. "
-- J.C.R Licklider
In October 1962, Licklider was appointed head of DARPA information
processing office, and started to form an informal group within the
United States Department of Defense's DARPA to further computer
research. As part of the information processing offices role, three
network terminals had been installed. One for System Development
Corporation in Santa Monica, one for Project Genie at the University
of California, Berkeley and one for the Multics project at the
Massachusetts Institute of Technology. Licklider's need for
inter-networking would be made evident by the problems this caused.
"For each of these three terminals, I had three different sets of
user commands. So if I was talking online with someone at S.D.C. and
I wanted to talk to someone I knew at Berkeley or M.I.T. about this,
I had to get up from the S.D.C. terminal, go over and log into the
other terminal and get in touch with them.
I said, oh, man, it's obvious what to do: If you have these three
terminals, there ought to be one terminal that goes anywhere you
want to go where you have interactive computing. That idea is the
ARPAnet." -- Robert W. Taylor, co-writer with Licklider of "The
Computer as a Communications Device", in an interview with the New
York Times.
At the core of the inter-networking problem lay the issue of
connecting separate physical networks so they formed one logical
network. During the 1960s, several groups worked on, and produced
the concept of Packet Switching. Donald Davies (NPL), Paul Baran
(Rand Corporation) and Leonard Kleinrock (MIT) are normally credited
with the simultaneous invention. The common myth that the Internet
was developed to survive nuclear attack has its roots in the early
theories developed by RAND. Baran's research had approached packet
switching from study of decentralization to avoid combat damage
risking the entire network.. |
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