We spend several minutes on the internet per day
And we will share those that follow to understand...
Wait...
Where are we?
Note that I am not asking you your current location
Or youtube
But this place or mixed text and image video, where we are now
To understand where we are, we must understand what is Internet
Currently Eyes, you have a device: PC, Tablet, Smart-phone, or other
This device is connected to your box or modem
On this Box this device is not connected alone
You probably have a printer, a game console or a PC connected also
It is a network
Your box is the central point of this network is connected to your phone line
Telephone line is connected to the other line connection points
These connection points are on poles, in sheets or in boxes ready for your home
These lines depart connection points to reach sub-distributors
The sub-distributors are cabinets that you have already seen home loan
They aim to bring together in the same district lines
In this sub-distributor are connected to neighbor, town halls, schools, all networks in your district
The line then goes to a central telephone or NRA
NRA: Node Connecting Subscribers
The NRA are equipped with filters to separate the frequencies of Telephone signals and DSL signals
The DSL signals go to the DSLAM
The DSLAM is the connections between network subscribers and operators
SFR, Orange, Free is french operators
For fiber this is a call NRO: node optical connection
For fiber this is a call NRO: node optical connection
It is configured such and we will talk about fiber optics in a future video
We start connecting node to join the Point Of Presence
POP is a regional collect point where operators can control the Internet connection of their customers
POPs are connected to GIXs: Global Internet Exchange
The GIX are datacenter type of infrastructure that enables operators to exchange Internet traffic
The GIX are connected to the Internet backbone, these are very high-speed and long distance networks
The speed rate can reach up to 800 Gb/s
These internet backbone or long distance network connects several countries together
We find similar structures in other countries
It is the Internet! a global network of network
But originally, this system is only used to pass information
If today you were only on the internet, you will see that!
Oh sorry!
fortunately for us several technologies have been grafted to the Internet
this was not done in one day
In 1969 two California university computers exchange information via cable to a few meters.
In 1971 Ray Tomlinson manages to transfer 200 lines of code from one computer to another via two mailboxes
Then there arise the first fruits of the email
Finally in 1989, Tim Berners-Lee and Robert Cailliau, two engineers of the European Organization for Nuclear Research (CERN said)
Put online the first web page based on a mix between the Internet and hypertext
In short, hypertext, is the organization of electronic documents accessed through links
It is from here that stems different languages, URLs and search engines
We realize that it took at least 20 years to go from a simple computer network World Wide Web
This is where we are you and me! On the Web, which is the graphical interface of digital files and information transmitted via the Internet
And it's not over
What we do not know necessarily is that the Web is only a small part of Internet applications
there're many more ...
there is so much to say on the web, in the ocean of the Internet, it is like the face of an iceberg
You want to know what lies underneath? We left…
The web is this the graphics, visible and accessible to all in the world via the search engines
When you want to access a website, at least to know exactly the address,
You go through a search engine and you click a hyperlink that will take you on this site
the fact that the site is visible on a search engine that will appeal indexing or referencing
Today many websites and content are not indexed by search engines
It lies on the submerged part of the iceberg, called the deep web
The deep web would represent around 96% of the Web
The reasons for the non-indexation of such sites and resources are technical
files are often not recognized by the search engines
there a few years ago the PDF were not supported and were not on the web, they were part of the Deep Web.
For websites, several factors may be due to their non-indexing
Pounds Relationship heavy web pages,
A programming language misused,
A lack of hypertext links,
A site closure by a login and password preventing the entry of bots which index the web.
This time it's good, you know more about Internet Web and the Deep Web
Be careful though not to be confused with Deep Web Darknets and networks anonymisations we will see in the next video
In each episode, I will try to share with you a tip
The Tips of the day is an on line web page by steaming service Netflix available on fast.com or slow.com
This web page allows you to test your internet connection from any connected device and any network.
The links can be found in the description of this video.
If you want to track upcoming events, you can subscribe :-)
I give you an appointment on social networks.
Do not hesitate to put a thumb to comment on the video and share it
I give you appointment soon for new adventures, by then...
Stay connected !
You stayed so far !!! I offer a little blooper ;-)
It is directed to the DSLAM,
* speaks very little English *
ok English is not too much that...
it is directed to the DSLAM. I would not say the acronym of because...
Be careful, it's hot!
HOT!
HOT!
HOOOOOOOOOOOOT!
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I also give you an appointment on the networks ... Toto
Toto toto ... ... yes it's me
