How the Internet Works

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A presentation by John Claro, 1st Year of Waterford Institute Technology. For Foundations of Computing in Applied Computing.

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Internet:

Internet How it works By John Claro

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The internet is used for many things such as sending email, playing online games, Facebook and browsing web .

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But what is the internet ?

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The internet is a vast amount of computers…

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Internet ensures information flowing between different addresses reaches its destination as quickly as possible.

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Internet addresses are a series of numbers rather than typical names 192.168.0.0.0 www.johnclaro.com

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The internet has a built-in mechanism for translating every website name to its exact address called IP Address.

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Your computer is likely not connected into directly the internet even if you have a broadband internet connection eg . DSL, Cable, Fiber .

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Basically all your internet traffic such as instant messaging or web browser must be translated into a format that can travel into your local broadband provider over a telephone, cable or other types of lines. Broadband

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Your broadband provider likely has multiple high speed connections that connect it to the internet.

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It would all look like this… Suppose you open up a web browser in your home computer and type in a particular website’s name. Broadband w w w.

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Broadband w w w. Your computer first locates its exact address on the internet. ???

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Your computer first locates its exact address on the internet. Broadband w w w. …250

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And then sends in information out of your home over your broadband connection bound for the website’s address. Broadband w w w.

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When a website responds, it sends data back over to the internet to your computer. Broadband w w w.

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Amazingly enough, this process usually takes place under a second even when a web server is located thousands of miles away ! Broadband w w w.

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FACTS About 247 billion emails are sent everyday

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About 81% of these emails are spam / junk FACTS

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About 234 million websites are stored in the internet FACTS

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Out of the total 300 million American people. 105 million of them have YouTube accounts FACTS

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The National Security Agency is building a $2 billion data centre in Utah that will be the world's first to store a yottabyte of data. That's 1,000 zettabytes or 1 million exabytes (or 1 million billions of gigabytes ). FACTS

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In September, Facebook hit a billion users. It is a good chunk of the Internet . FACTS

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People who spend a lot of time online tend to be stressed out and depressed, researchers at Sweden’s University of Gothenburg  found. FACTS

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The End

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