The internet is the biggest world-wide communication network of computers. It has millions of smaller domestic, academic, business, and government networks, which together carry many different kinds of information. The term is sometimes abbreviated as "the net". The World Wide Web is one of its biggest services. It is used by a few billion people all over the world.
The internet was developed in the United States by the "United States Department of Defense Advanced Research Projects Agency" (DARPA). It was first connected in October, 1969, and was called ARPANET. The World Wide Web was created at CERN in Switzerland in 1990 by a British (UK) man named Tim Berners-Lee.
Today, people can pay money to access the internet from internet service providers. Some services on the Internet cost nothing to use. Sometimes people who offer these free services use advertising to make money from them. Censorship and freedom of speech on the internet can be controversial.
Services on the internet[change | change source]
The internet is used for many things, such as electronic mail, online chat, file transfer, and the interlinked web pages and other documents of the World Wide Web.
The most used service on the internet is the World Wide Web (which is also called the "Web"). The Web contains websites, including blogs and wikis like Wikipedia. Webpages on the internet can be seen and read by anyone (unless the page needs a password, or it is blocked).
The second biggest use of the internet is to send and receive e-mail. E-mail is private and goes from one user to another. Instant messaging (such as AIM or ICQ) is similar to email, but allows two or more people to chat to each other much faster.
Some governments think the Internet is a bad thing, and block all or part of it. For example, the Chinese government thinks that Wikipedia is bad. Many times no one in China can read it or add to it. Some parents block parts of the internet they think are bad for children to see. Well-known examples of the whole internet being blocked are in North Korea.
Dangers on the internet[change | change source]
The internet makes communication easy, and communication can be dangerous. People often send secret information, and sometimes other people can steal that information. They can use the Internet to spread lies or stolen secrets or dangerously bad advice. For example, Facebook has had some problems with privacy settings. A person can post information on the website, but this is often a bad idea unless the person is very sure of what they are doing. One way to check for a secure website is to make sure the URL starts with https:// instead of http://. This means it is secured so other people cannot read information while it is being sent. However, it does not mean the website will do things to keep it safe.
Related pages[change | change source]
|Wikimedia Commons has media related to Internet.|
References[change | change source]
The Internet is a vast network of computers and other mini-networks all linked together so that everyone can find information, purchase products, or meet new people. It is easily assessable from home for anyone that has a computer and a modem or at a local library. It has made a huge impact since its introduction to the public and now some people cannot see life without it. It is also relatively new considering it was just about 10 years ago that it was made public and easily accessible to everyone thorough online services. This paper will describe the history of the Internet.
The Internet is first conceived in the early ’60s. Under the leadership of the Department of Defense’s Advanced Research Project Agency, it grows from a paper architecture into a small network (ARPANET) intended to promote the sharing of super-computers amongst researchers in the United States. Through the next couple years there were talks of about how this network could come into the cooperate world and in 1969 researchers at four US campuses create the first hosts of the ARPANET, connecting Stanford Research Institute, UCLA, UC Santa Barbara, and the University of Utah. The ARPANET is a success from the very beginning. Although originally designed to allow scientists to share data and access remote computers, email quickly becomes the most popular application. The ARPANET becomes a high-speed digital post office as people use it to collaborate on research projects and discuss topics of various interests. In 1971 the ARPANET grows to 23 hosts connecting universities and government research centers around the country. In 1972 the InterNetworking Working Group becomes the first of several standards which set entities to govern the growing network. Vinton Cerf is elected the first chairman of the INWG, and later becomes known as a “Father of the Internet.” The ARPANET goes international in 1973 with connections to University College in London, England and the Royal Radar Establishment in Norway.
From 1974 to 1981 the general public starts to get its first vague hint of how networked computers can be used in daily life as the commercial version of the ARPANET goes online. The ARPANET starts to move away from its military and research roots and in 1974 Bolt, Beranek & Newman opens Telnet, the first commercial version of the ARPANET. In 1981 ARPANET has 213 hosts and a new host was being added approximately once every 20 days.
From 1982 to 1987 Bob Kahn and Vint Cerf are key members of a team which creates TCP/IP, the common language of all Internet computers. For the first time the it seemed as though the loose collection of networks which made up the ARPANET is seen as an “internet”, and the Internet as we know it today is born. The mid-80s marks a boom in the personal computer and super-minicomputer industries. The combination of inexpensive desktop machines and powerful, network-ready servers allows many companies to join the Internet for the first time. Corporations begin to use the Internet to communicate with each other and with their customers. In 1982 the term “Internet” is used for the first time. By 1984 the number of Internet hosts exceeds 1,000, by 1987 the number exceeded 10,000, and by 1990 the number exceeded 300,000.
By 1988 the Internet is an essential tool for communications, however it also begins to create concerns about privacy and security in the digital world. New words, such as “hacker,” “cracker” and” electronic break-in”, are created. These new worries are dramatically demonstrated on Nov. 1, 1988 when a malicious program called the “Internet Worm” temporarily disables approximately 6,000 of the 60,000 Internet hosts. The Computer Emergency Response Team was formed in 1988 and it was their job to address security concerns raised by the Worm.
In 1993 corporations wishing to use the Internet face a serious problem which was commercial network traffic was banned from the National Science Foundation’s NSFNET, the backbone of the Internet, but in 1991 the NSF lifts the restriction on commercial use, clearing the way for the age of electronic commerce.
Also in 1991 at the University of Minnesota, a team led by computer programmer Mark MaCahill releases “gopher,” the first point-and-click way of navigating the files of the Internet. Originally designed to ease campus communications, gopher is freely distributed on the Internet. 1991 is also the year in which Tim Berners-Lee, working at CERN in Switzerland, posts the first computer code of the World Wide
Web in a relatively innocuous newsgroup, “alt.hypertext.” The ability to combine words, pictures, and sounds on Web pages excites many computer programmers who see the potential for publishing information on the Internet in a way that can be as easy as using a word processor.
Marc Andreesen and a group of student programmers at NCSA (the National Center for Supercomputing Applications located on the campus of University of Illinois at Urbana Champaign) will eventually develop a graphical browser for the World Wide Web called Mosaic and by 1993 Mosaic becomes the first graphics-based Web browser.
By 1993 traffic on the NSF backbone network exceeds 1 trillion bytes per month, and the first audio and video broadcasts take place over a portion of the Internet known as the “MBONE.” More than 1,000,000 hosts are now part of the Internet and it expands at a 341,634% annual growth rate.
In 1995 NSFNET reverts back to a research project, leaving the Internet in commercial hands. The Web now comprises the bulk of Internet traffic. James Gosling and a team of programmers at Sun Microsystems release an Internet programming language called Java, which radically alters the way applications and information can be retrieved, displayed, and used over the Internet.
As the Internet celebrates its 25th anniversary in 1996, the military strategies that influenced its birth become historical footnotes. Approximately 40 million people are connected to the Internet. More than $1 billion per year changes hands at Internet shopping malls, and Internet related companies like Netscape are the darlings of high-tech investors. Users in almost 150 countries around the world are now connected to the Internet. The number of computer hosts approaches 10 million. Within 30 years, the Internet has grown from a Cold War concept for controlling the tattered remains of a post-nuclear society to the Information Superhighway. Just as the railroads of the 19th century enabled the Machine Age, and revolutionized the society of the time, the Internet takes us into the Information Age, and profoundly affects the world in which we live.
In present day people are telecommuting over the Internet, allowing them to choose where to live based on quality of life, not proximity to work. Many cities view the Internet as a solution to their clogged highways and fouled air. Schools use the Internet as a vast electronic library, with untold possibilities. Doctors use the Internet to consult with colleagues half a world away. The Internet even offers a single Global Village; it threatens to create a 2nd class citizenship among those without access. As a new generation grows up as accustomed to communicating through a keyboard as in person, life on the Internet will become an increasingly important part of life on Earth. The Age of the Internet has arrived.
How It Works In Present Day
The Internet works by a number of connections one leading to a bigger one and then somehow finding where it wants to be. So how does it do this? First it begins at the users PC where that is equipped to send and receive all variety of audio and video. From there is the data goes out through the PC’s communication to connect the User’s to the “Local Loop” which is the Internet service provider such as AOL or some other online provider. In there the system decipher what kind of data is being sent and at this location it tells the data what type of data it is and where to go. Examples of the different kinds of data are examples of this are Domain Name Server, E-mail, and newsgroups. From there it is sent to the ISP backbone which interconnects the ISP’s, POPs, AND interconnects the ISP to other ISP’s and online content. At this location the data is routed to the desired location and the online content they user was looking for is found. The data is then sent back through the system to the original user. The information that is on the data coming back could have came from a wide array of sources such as books, finical markets, embedded chips or even made up by someone trying to fool the user.
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