How Internet Work

How Internet Works:

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  A bunch of computers all over the globe that are hooked up to one another.
  
  
  
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  They can talk to one another and exchange information.
  
  
  
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  To do this, they use protocols, or languages, such as FTP and HTTP.
  
  
  
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  The Internet, sometimes called simply "the Net," is a worldwide system of computer networks - a network of networks in which users at any one computer can, if they have permission, get information from any other computer (and sometimes talk directly to users at other computers).
  
  
  
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  It was conceived by the Advanced Research Projects Agency (ARPA) of the U.S. government in 1969 and was first known as the ARPANET.
  
  
  
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  The original aim was to create a network that would allow users of a research computer at one university to be able to "talk to" research computers at other universities.
  
  
  
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  A side benefit of ARPANet's design was that, because messages could be routed or rerouted in more than one direction, the network could continue to function even if parts of it were destroyed in the event of a military attack or other disaster.
  
  
  
  

Hiperlink

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  This will take you from one Internet site to the next with a simple click of your mouse. You can usually tell where a link is because the writing will look different. For instance, some links appear in bold, some are underlined, and some are even attached to pictures. Also called a hiperlink.
  
  
  
  
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  Using hypertext, a link is a selectable connection from one word, picture, or information object to another.
  
  
  
  
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  In a multimedia environment such as the World Wide Web, such objects can include sound and motion video sequences.
  
  
  
  
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  The most common form of link is the highlighted word or picture that can be selected by the user (with a mouse or in some other fashion), resulting in the immediate delivery and view of another file.
  
  
  
  
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  The highlighted object is referred to as an anchor. The anchor reference and the object referred to constitute a hypertext link.
  
  
  
  
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  This will take you from one Internet site to the next with a simple click of your mouse. You can usually tell where a link is because the writing will look different. For instance, some links appear in bold, some are underlined, and some are even attached to pictures. Also called a link.
  
  
  
  
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  On the Web or other hypertext systems, hyperlink is a synonym for both link and hypertext link. Possibly, the term originated because "link" was not felt to be specific enough. And it's shorter than "hypertext link."
  
  
  
  

ABC's of the Internet

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  Every time a website is visited, it gets a 'hit'. All the hits, or times a page is visited, make up a site's traffic for a given time period.
  
  
  
  
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  A hit is a single file request in the access log of a Web server.
  
  
  
  
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  A request for an HTML page with three graphic images will result in four hits in the log: one for the HTML text file and one for each of the graphic image files.
  
  
  
  
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  While a hit is a meaningful measure of how much traffic a server handles, it can be a misleading indicator of how many pages are being looked at.
  
  
  
  
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  Instead, advertising agencies and their clients look at the number of pages delivered and ad impressions or views.