This introductory course aims to the Internet world to give you an overview of what is, what it does and how to use the Internet.
If you're a novice in these matters, probably what is best for you start this course for Unit 3 Surf the Internet. If you know surfing, perhaps most interesting is the course for you Unit 4 Searching the Internet. If you have time it would be best followed all the way from the unit 1.
One of the main features of the Internet is the vast amount of information it contains, which in most cases it is freely accessible and free. The main drawback is to quickly find what you are looking for, in this course we hope to help you overcome this difficulty.
But the Internet is much more than searching for data, there are lots of possibilities that will help you discover, mail, chat, shopping, music, voice over IP, ...
In this first unit we will see what Internet introduction, characteristics, and some things you can do, along the rest of the course we will expand some of the things cited in this unit.
This course wants to be an example of this facet disseminator of culture that has Internet and we would like to be maintained and expanded. Perhaps you feel yourself infected by this flu and also helps enhance the positive side of the network of networks.
When the tools for sharing information, such as books have been made available to the people, the culture has grown exponentially. Hopefully this new path that is the Internet meets the expectations and does not happen with television as it has produced fewer results than expected in the cultural field.
What is the Internet?
Everyone speaks and hears about the Internet, is new, modern and looks set to change our way of life. But if you ask people what the Internet is many do not know what to say. We will try to illustrate with a few simple ideas. Everyone knows that a clear picture is worth a hundred ideas confusing.
We could say that the Internet is composed of a large number of computers that can exchange information between them. It is a worldwide computer network.
Computers can communicate because they are linked through telephone connections (but can also be other types) and by using a common language or protocol, TCP / IP.
Internet
According to the plan we can see in the image, a user connects to the network (via a modem, either via telephone line, cable, satellite, etc ...). From this point the TCP / IP comes into play, thanks to him you can contact your Internet Service Provider (ISP) making him aware of your physical address.
Using TCP / IP, the ISP assigns IP addresses to your PC and at that moment gives you access to the network.
When we access a page we provide a domain that is translated into the DNS Servers and localized. When we know what Web Server is the page you want to visit it proceeds to download and display in the browser's PC.
Internet has boomed since approximately 1994, but existed long before computers connected together so what happened then? Several things happen: the emergence of the Web, telephone modems, free software for web servers and personal computers increased.
Most importantly, it appeared the WWW (WorldWideWeb), who managed to make it easier and attractive to use the network to all users by adding interactivity. Basically through the introduction of hypertext, graphics and forms. Sometimes the word is used as a synonym for the Internet Web.
Hypertext is what makes that clicking on a word or figure move from the page where we are at a different page. This new page can be on another computer at the other end of the world, this is what created the concept of surfing the Internet, we can visit within minutes, almost without realizing it, information that resides on computers located in different countries. Actually when we seek information that interests us is to find, not knowing where you are physically.
The site also has improved the aspect of information through graphics and text formatting, this is possible thanks to the creation of the language in which web pages are written, HTML (HyperText Markup Language). Also appeared for free Web browsers: programs to transform the HTML in Web pages.
Now the user feel heard by the computer, as can very easily get your opinions, questions, complaints, etc.. through forms.
Other aspects that helped the growth of the Internet were the occurrence of low-cost modems installed on a personal computer allowed it connects to the telephone network through which the data arrives from the other computers connected to the Internet.
There was also an increasing number of personal computers with which most people could access the Internet.
Nor should we forget that with the advent of free programs for creating web servers, including Apache, thousands of small organizations and student groups could become reporting issuers. Which made dramatically increase the number and diversity of information available on the Internet totally free.
If you're a novice in these matters, probably what is best for you start this course for Unit 3 Surf the Internet. If you know surfing, perhaps most interesting is the course for you Unit 4 Searching the Internet. If you have time it would be best followed all the way from the unit 1.
One of the main features of the Internet is the vast amount of information it contains, which in most cases it is freely accessible and free. The main drawback is to quickly find what you are looking for, in this course we hope to help you overcome this difficulty.
But the Internet is much more than searching for data, there are lots of possibilities that will help you discover, mail, chat, shopping, music, voice over IP, ...
In this first unit we will see what Internet introduction, characteristics, and some things you can do, along the rest of the course we will expand some of the things cited in this unit.
This course wants to be an example of this facet disseminator of culture that has Internet and we would like to be maintained and expanded. Perhaps you feel yourself infected by this flu and also helps enhance the positive side of the network of networks.
When the tools for sharing information, such as books have been made available to the people, the culture has grown exponentially. Hopefully this new path that is the Internet meets the expectations and does not happen with television as it has produced fewer results than expected in the cultural field.
What is the Internet?
Everyone speaks and hears about the Internet, is new, modern and looks set to change our way of life. But if you ask people what the Internet is many do not know what to say. We will try to illustrate with a few simple ideas. Everyone knows that a clear picture is worth a hundred ideas confusing.
We could say that the Internet is composed of a large number of computers that can exchange information between them. It is a worldwide computer network.
Computers can communicate because they are linked through telephone connections (but can also be other types) and by using a common language or protocol, TCP / IP.
Internet
According to the plan we can see in the image, a user connects to the network (via a modem, either via telephone line, cable, satellite, etc ...). From this point the TCP / IP comes into play, thanks to him you can contact your Internet Service Provider (ISP) making him aware of your physical address.
Using TCP / IP, the ISP assigns IP addresses to your PC and at that moment gives you access to the network.
When we access a page we provide a domain that is translated into the DNS Servers and localized. When we know what Web Server is the page you want to visit it proceeds to download and display in the browser's PC.
Internet has boomed since approximately 1994, but existed long before computers connected together so what happened then? Several things happen: the emergence of the Web, telephone modems, free software for web servers and personal computers increased.
Most importantly, it appeared the WWW (WorldWideWeb), who managed to make it easier and attractive to use the network to all users by adding interactivity. Basically through the introduction of hypertext, graphics and forms. Sometimes the word is used as a synonym for the Internet Web.
Hypertext is what makes that clicking on a word or figure move from the page where we are at a different page. This new page can be on another computer at the other end of the world, this is what created the concept of surfing the Internet, we can visit within minutes, almost without realizing it, information that resides on computers located in different countries. Actually when we seek information that interests us is to find, not knowing where you are physically.
The site also has improved the aspect of information through graphics and text formatting, this is possible thanks to the creation of the language in which web pages are written, HTML (HyperText Markup Language). Also appeared for free Web browsers: programs to transform the HTML in Web pages.
Now the user feel heard by the computer, as can very easily get your opinions, questions, complaints, etc.. through forms.
Other aspects that helped the growth of the Internet were the occurrence of low-cost modems installed on a personal computer allowed it connects to the telephone network through which the data arrives from the other computers connected to the Internet.
There was also an increasing number of personal computers with which most people could access the Internet.
Nor should we forget that with the advent of free programs for creating web servers, including Apache, thousands of small organizations and student groups could become reporting issuers. Which made dramatically increase the number and diversity of information available on the Internet totally free.
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