Автор работы: Пользователь скрыл имя, 10 Мая 2012 в 17:43, доклад
Today we all take for granted that we should have instant access to the Internet regardless if we're at home or at work. We can even browse the web while on the go thanks to cell phones. It obviously hasn't been like this for ages and to help clarify the progress of the Internet we've written you a timeline with the most important things happening. Although the Internet only has a brief history it's a very interesting one - especially because things have happened so fast. What one thought was impossible some 20 years ago is now a reality for all web users.
The brief History of Internet
Today we all take for granted that we should have instant access to the Internet regardless if we're at home or at work. We can even browse the web while on the go thanks to cell phones. It obviously hasn't been like this for ages and to help clarify the progress of the Internet we've written you a timeline with the most important things happening. Although the Internet only has a brief history it's a very interesting one - especially because things have happened so fast. What one thought was impossible some 20 years ago is now a reality for all web users.
1857-58: The Atlantic cable of 1858 was established to carry instantaneous communications across the ocean for the first time.
The manufacture of the cable started in early 1857 and was completed in June. Before the end of July it was stowed on the American "Niagara" and the British "Agamemnon" -- both naval vessels lent by their respective governments for the task.
Although the laying of this first cable was seen as a landmark event in society, it was a technical failure. It only remained in service a few days. Subsequent cables laid in 1866 were completely successful and compare to events like the moon landing of a century later... the cable ... remained in use for almost 100 years.
1950's
1957 - It was
this year that the USSR launched 'Sputnik', the first artificial earth
satellite. The United States in reply formed the Advanced Research Projects
Agency (ARPA) within the Department of Defense (DoD) to create US lead
in science and technology applicable to the military.
1960's
1962 - The U.S. Air Force commissioned Rand Paul Baran, of the RAND Corporation (a government agency), to do a study on how it could maintain its control and command over its missiles and bombers, after a nuclear attack. It was to be a military research network that could survive a nuclear strike. It was decentralized so that if any locations in the U.S. were attacked, the military could still have control of nuclear arms for a counter-attack.
Baran's
completed document explained the different ways to achieve this. His
final proposal was a packet switched network - "Packet switching is the breaking down of data into datagrams
or packets that are labeled to indicate the origin and the destination
of the information and the forwarding of these packets from one computer
to another computer until the information arrives at its final destination
computer. This was crucial to the realization of a computer network.
If packets are lost at any given point, the message can be resent by
the originator."
1968 - ARPA awarded the ARPANET contract to BBN. BBN had chosen a Honeywell minicomputer as the base to build the switch on. In 1969 the actual, physical network was constructed linking four nodes: University of California at Santa Barbara, and University of Utah, University of California at Los Angeles, and SRI (in Stanford. The network was wired together via 50 Kbps circuits.
1970's
1972 - Ray
Tomlinson of BBN created the first e-mail program. The Advanced Research
Projects Agency (ARPA) was renamed The Defense Advanced Research Projects
Agency (or DARPA) ARPANET was currently using the Network Control Protocol
or NCP to transfer data, allowing communications between hosts running
on the same network.
1973 - DARPA
began development on the protocol which was later to be called TCP/IP.
It was developed by a group headed by Vinton Cerf from Stanford and
Bob Kahn from DARPA. This new protocol was to allow varied computer
networks to interconnect and communicate with each other.
1974 - It was
in 1974 the term Internet was first used by Vint Cerf and Bob Kahn in
paper on Transmission Control Protocol.
1976 - Ethernet was developed by Dr. Robert M. Metcalfe which allowed coaxial cable to move data extremely fast. This was a crucial component to the development of LANs. The packet satellite project was then put to practical use and Atlantic packet Satellite network, SATNET was born. It was this network that linked the United States with Europe. But surprisingly it used INTELSAT satellites that were owned by a consortium of countries and not exclusively the United States government. The Department of Defense began to experiment with the TCP/IP protocol and soon decided to require it for use on ARPANET.
1979 - USENET (the decentralized news group network) was developed by Steve Bellovin, a graduate student at University of North Carolina along with other programmers Tom Truscott and Jim Ellis. It was based on UUCP. The Creation of BITNET, by IBM, "Because its Time Network", introduced the "store and forward" network. It was used for email and listservs.
1981
- National Science Foundation created backbone called CSNET 56 Kbps
network for institutions without access to ARPANET. Vinton Cerf came
up with a plan for an inter-network connection between CSNET and the
ARPANET.
1983
- This year saw the creation of Internet Activities Board (IAB). On
January 1st, every machine connected to ARPANET had to use TCP/IP. NCP
was replaced entirely and TCP/IP became the core Internet protocol.
The University of Wisconsin created Domain Name System (DNS). This allowed
packets to be directed to a domain name, which would be translated by
the server database into the corresponding IP number. This made it much
easier for people to access other servers, as there was no need to remember
numbers.
1984
- The ARPANET was divided into two networks and the Department of Defense
continued to support both networks. The networks were ARPANET and MILNET.
ARPANET was to support the advanced research component, and MILNET was
to serve the needs of the military. MCI was given the contract to upgrade
to CSNET. New circuits would be T1 lines, 1.5 Mbps which is twenty-five
times faster than the old 56 Kbps lines. IBM was to provide advanced
routers and Merit to manage the network. New network was to be called
NSFNET (National Science Foundation Network), and old lines were to
remain called CSNET.
1985
- The National Science Foundation began deploying its new T1 lines,
which were finished by 1988.
1986
- IETF or The Internet Engineering Task Force was developed to serve
as a forum for technical coordination by contractors for DARPA working
on ARPANET, US Defense Data Network (DDN), and the Internet core gateway
system.
1987
- BITNET and CSNET were merged to form the Corporation for Research
and Educational Networking (CREN), another work of the National Science
Foundation.
1988 - Soon after the completion of the T1 NSFNET backbone, traffic increased so quickly that they had to immediately start upgrading the network again.
1990
- IBM, Merit and MCI formed a non-profit corporation called ANS, Advanced
Network & Services. This was formed to conduct research into high
speed networking. It soon came up with the idea of the T3, a 45 Mbps
line. NSF immediately adopted the new network and by the end of 1991
all of its sites were connected by this new backbone. While the T3 lines
were being constructed, the ARPANET was disbanded by the Department
of Defense and replaced it by the NSFNET backbone. The original 50Kbs
lines of ARPANET were taken out of service. Tim Berners-Lee and CERN
in Geneva implemented a hypertext system to provide efficient information
access to the members of the international high-energy physics community.
1991
- CSNET (which consisted of 56Kbps lines) was discontinued after fulfilling
its important early role in the provision of academic networking service.
A key feature of CREN is that its operational costs are fully met through
dues paid by its member organizations. The NSF established a new network,
named NREN, the National Research and Education Network. The objective
of this network was to conduct high speed networking research. It was
not to be used as a commercial network, nor was it to be used to send
a lot of the data that the Internet now transfers.
1992
- In this year the Internet Society was chartered. World-Wide Web was
released by CERN. NSFNET backbone was upgraded to T3 (44.736Mbps)
1993
- The InterNIC was created by NSF to provide specific
Internet services: directory and database services, registration services,
and information services. Marc Andreessen and NCSA and the University
of Illinois developed a graphical user interface to the WWW, called
"Mosaic for X". Search engine Lycos was created, as a university
project.
1994
- This year saw no major changes to the physical network. Growth was
the most important thing that happened. Many new networks were added
to the NSF backbone. Hundreds of thousands of new hosts were added to
the INTERNET during this time period. Pizza Hut offers pizza ordering
on its Web page. WebCrawler, the first full-text Search Engine was created.
1995
- The National Science Foundation discontinued direct access to the
NSF backbone from April 30, 1995. The National Science Foundation contracted
with four companies that would be providers of access to the NSF backbone
(Merit). These companies would then sell connections to groups, organizations,
and companies. $50 annual fee is imposed on domains, excluding .edu
and .gov domains which are still funded by the National Science Foundation.
Industry leaders, at least at the time, Yahoo! and AltaVista were founded.
1996 - Most Internet traffic is carried by backbones of independent ISPs, including MCI, AT&T, Sprint, UUNet, BBN planet, ANS, and more. Currently the Internet Society, the group that controls the INTERNET, is trying to figure out new TCP/IP to be able to have billions of addresses, rather than the limited system of today. The problem that has arisen is that it is not known how both the old and the new addressing systems will be able to work at the same time during a transition period.
2000 – Despite a great deal of concern and hand-wringing over the probable effects of the Y2K software error on national and international computing systems, 2000 arrived with minimal disturbance and the software glitch caused very little disruption of services or Internet traffic. During 2000, the number of sites that comprise the Internet is estimated to exceed one billion web pages. February saw a series of distributed denial-of-service (DDoS) attacks against major Internet sites including Yahoo, Amazon.com and CNN; these attacks were estimated to have cost the targeted companies approximately $1.7 billion in lost revenues. The month of March marks the beginning of the end for many Internet start-ups and the bursting of the “Internet bubble” in the financial world. Rumors circulate online that Microsoft has lost its antitrust lawsuit and has been ordered to split into two separate companies, prompting the largest single-day drop in the Dow Jones Industrial Average ever recorded to that point in its history. The rumors prove false, but the role of the Internet in disseminating information and influencing financial trends has been established. The first legally binding instance of Internet voting in the U.S. takes place in Arizona during the Democratic Party primary election.
2001 – Australia passes the Digital Agenda Act; intended to provide copyright protections in the online marketplace, it inadvertently criminalizes the forwarding of email as a possible infringement on the author’s intellectual property rights under copyright law. Community colleges are allowed to register for .edu domain name addresses for the first time thanks to a transfer of control from VeriSign to Educause. The .biz and .info domains are opened to registrations in July of 2001. Microsoft settles with the government and is allowed to continue operations as a single business entity. Google began its rise to dominance with the hiring of its first corporate CEO in March, marking its entry into the expanding Internet marketplace; the company first turned a profit in 2001 and has done so in every year since then. The European Council signs and implements an international cybercrime treaty to allow prosecution of crimes committed via the Internet. The Taliban bans access to the Internet throughout the country of Afghanistan.
2002 – Napster becomes one of the first casualties of the crackdown on copyrighted material being exchanged via the Internet after losing a lawsuit to the Recording Industry Association of America (RIAA). Spain institutes new legislation requiring all online commercial websites to register with the government, resulting in hundreds of sites removing their online content in protest. DDoS attacks shut down eight of thirteen DNS root servers and prompt greater security and more redundancy on the part of government and private industrial entities. Online auction site eBay purchases PayPal, an Internet payment processing company, as a wholly-owned subsidiary.
2003 – VeriSign continues to manage the .com domains while surrendering control of the .org domains to the Public Interest Registry. Another major DDoS attack on January 25 shuts down five of the thirteen DNS root servers, this time caused by the SQL Slammer malware. It is followed later in the year by similar attacks by the MSBlast worm and the Sobig.F virus, both of which do significant financial damage to major Internet systems including banking, air traffic control and other public services organizations. Some large retailers begin charging state taxes on purchases made online and the European Union institutes a legal requirement that VAT payments be made on all digital download purchases. The RIAA sues 261 private individuals for infringement of copyright due to their alleged online sharing of music via peer-to-peer networking sites. Email spam begins to present problems for ISPs and bandwidth providers.
2004 – Social networking website Facebook is launched in February as a service for students at several prestigious Ivy League universities, but soon expands to allow registration from universities throughout the U.S. and Canada. Google announces its initial public offering for shares of stock, propelling it to even greater success and expansion into the Internet marketplace. In response to what it deems excessive spamming, Verizon blocks email traffic from European ISPs to its U.S. network; this blockade continues through the early part of 2005 and prompts a class action lawsuit that is finally settled in 2006.
2005 – Pakistan loses Internet connectivity throughout most of the country due to a defective submarine cable. Affiliated with the European Union, the .eu domain name begins accepting registrations in December.
2006 – In October, Google announces its intent to acquire YouTube, a popular video hosting site. Later in the year Google announces that it will partner with British Sky Broadcasting to host an email service at domain name sky.com. The country of Zimbabwe is cut off from the Internet after failing to make required payments to its satellite Internet connection provider. Twitter is launched in July and quickly gains popularity due to its short bursts of information, known as tweets.
2007 – Hulu is launched and provides access to popular television shows online thanks to a cooperative agreement between several major television networks. Despite the inclusion of commercial breaks on these television programs, the site quickly gains popularity as a way to catch up on missed shows online. The first iPhone is released and is credited with spurring the increase in mobile access to the Internet.
2008 – NASA launches a deep space communications spacecraft that transmits data using a model based on the structure of the Internet. Google announces on January 31 that its crawlers have processed over one trillion unique web pages, another milestone in the exponential growth of the Internet. For the first time, mobile devices are more often used to access the Internet than personal computers with 95 million mobile internet subscriptions in the U.S. alone.
2009 – After a hotly contested competition, actor Ashton Kutcher narrowly beats out CNN Breaking News to become the first to achieve one million followers on Twitter. Twitter made headlines later in the year when it was used by Iranian members to report on the election protests that took place in June; due to censorship, filtering and sporadic removal of Internet access in the country, Twitter was one of the few options available to protesters and reporters within the country.
In the last 15 years the number of users grew up from 16 million to more than 2 billion people.
The good news about the Internet nowadays is that there are hundreds of millions of pages available, waiting to present information on an amazing variety of topics.
When you need to know about a particular subject and want to derive it from tremendous number of pages you visit an Internet search engine.