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]
An Explanation of How the Internet Works Essay
814 Words4 Pages
An Explanation of How the Internet Works
Have you ever thought how the Internet works? The research found here will help answer that question. The Internet is a complicated system. There are two main protocols that the Internet uses that allow you to transmit and there are certain procedures that allow you to receive information via the Internet. The Internet is very large and many things have to work correctly for information to get to your computer or to get from your computer to someone else's computer.
"The Internet is a network of networks," according to Quarterman and Salus and they state that it is the world's largest system of routes and connections. No one company or person controls the Internet (Quarterman & Salus).…show more content…
These packets are wrapped in an electronic envelope with addresses for both the sender and recipient (Scott's Newsletter). The second step in transmitting information using the Internet is when the Internet Protocol figures out how the data is to get from point A to point B by passing through a series of routers, which is the same way regular mail passes through several post offices on its way to the recipient (Scott's Newsletter). Every router that receives the data will examine the destination addresses of the packets and will pass the packets on to another router as they make their way to the recipient (Scott's Newsletter). There are different protocols used by the Internet: Simple Mail Transfer Protocol (SMTP), File Transfer Protocol (FTP), and Telnet Protocol. SMTP is used for sending email and FTP is used for transferring files to the Internet.
Now that you know how you transmit information using the Internet lets move to how you receive information using the Internet. The most important information many of us receive from the Internet is our email and is the most frequently used application of the Internet (Internet 101). In the year 2000 5.1 billion emails were sent in the United States (Internet 101). Internet 101 estimates that by 2005 11.5 billion emails will be sent