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History of the internet

history of the internet. useful if you want to do those pointless assignments they give you in class.

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HISTORY OF THE
INTERNET
What is the “internet”?
The Internet is a global
information network that
connects millions of computers It
is growing exponentially and
provides a unique information
resource that is global, diverse
and current.
What do we use the internet
for?
Browsing information
Social media and creating awareness
For entertainment (music, videos,
movies)
Communicating with people all over
the world.
Sharing information
E-commerce and banking
Internet in the 1950’s
The Internet has no single
“inventor.” Instead, it has
evolved over time.
The Internet got its start in the
United States more than 50
years ago as a government
weapon in the Cold War.
Contd.
Scientists and researchers used it to communicate and
share data with one another through what was
known as DARPNET(Defense’s Advanced Research
Projects Agency Network).
This was in response to the Soviet Union bombings
and a need to create a communication network which
was free from interference and disruption.
Internet in the 1960’s
In 1962, a scientist from M.I.T. and DARPA named J.C.R.
Licklider proposed : a “galactic network” of computers
that could talk to one another. Such a network would
enable government leaders to communicate even if the
Soviets destroyed the telephone system.
In 1965, another M.I.T. scientist developed a way of
sending information from one computer to another that
he called “packet switching.” Packet switching breaks
data down into blocks, or packets, before sending it to its
destination.

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History of the internet

  • 2. What is the “internet”? The Internet is a global information network that connects millions of computers It is growing exponentially and provides a unique information resource that is global, diverse and current.
  • 3. What do we use the internet for? Browsing information Social media and creating awareness For entertainment (music, videos, movies) Communicating with people all over the world. Sharing information E-commerce and banking
  • 4. Internet in the 1950’s The Internet has no single “inventor.” Instead, it has evolved over time. The Internet got its start in the United States more than 50 years ago as a government weapon in the Cold War.
  • 5. Contd. Scientists and researchers used it to communicate and share data with one another through what was known as DARPNET(Defense’s Advanced Research Projects Agency Network). This was in response to the Soviet Union bombings and a need to create a communication network which was free from interference and disruption.
  • 6. Internet in the 1960’s In 1962, a scientist from M.I.T. and DARPA named J.C.R. Licklider proposed : a “galactic network” of computers that could talk to one another. Such a network would enable government leaders to communicate even if the Soviets destroyed the telephone system. In 1965, another M.I.T. scientist developed a way of sending information from one computer to another that he called “packet switching.” Packet switching breaks data down into blocks, or packets, before sending it to its destination.
  • 7. Contd. Without packet switching, the government’s computer network—now known as the ARPANET—would have been just as vulnerable to enemy attacks as the phone system. In 1969, ARPANET delivered its first message: a “node-to-node” communication from one computer to another but it crashed the full network. The internet was yet to be born
  • 8. Internet in the 1970’s By the end of 1969, just four computers were connected to the ARPANET, but the network grew steadily during the 1970s. As packet-switched computer networks multiplied, however, it became more difficult for them to integrate into a single worldwide “Internet.”
  • 9. Contd. By the end of the 1970s, a computer scientist named Vinton Cerf had begun to solve this problem by developing a way for all of the computers on all of the world’s mini-networks to communicate with one another. He called his invention “Transmission Control Protocol,” or TCP. (Later, he added an additional protocol, known as “Internet Protocol.” The acronym we use to refer to these today is TCP/IP.)
  • 10. Contd. TCP/IP was described to be the “handshake” between computers all over the world. It enabled each computer to have its own identity.
  • 11. Internet in the 1980’s Cerf’s protocol transformed the Internet into a worldwide network. Throughout the 1980s, researchers and scientists used it to send files and data from one computer to another. However, this network was still between scientists and researchers from different universities and labs.
  • 12. Internet in the 1990’s However, in 1991 the Internet changed again. Tim Berners-Lee introduced the World Wide Web: an Internet that was not simply a way to send files from one place to another but was itself a “web” of information that anyone on the Internet could retrieve. Berners-Lee created the first browser and the Internet that we know today.
  • 13. Contd. In 1992, a group of students and researchers at the University of Illinois developed a sophisticated browser that they called Mosaic. (It later became Netscape.) Mosaic offered a user-friendly way to search the Web: It allowed users to see words and pictures on the same page for the first time and to navigate using scrollbars and clickable links.
  • 14. Contd. That same year, Congress decided that the Web could be used for commercial purposes. As a result, companies of all kinds hurried to set up websites of their own, and e-commerce entrepreneurs began to use the Internet to sell goods directly to customers. More recently, social networking sites like Facebook have become a popular way for people of all ages to stay connected.