Internet 101 | National Geographic


(light music) – [Narrator] Today,
about 4.2 billion people have access to a world of information never before seen. Such an extraordinary
level of connectedness has revolutionized everything. From science and technology, to commerce and romance, and virtually every aspect of out lives. (upbeat music) Of all the technological
innovations in history, few have made as strong of
an impact as the internet. Comprised by a global
network of computers, the internet allows for the transmission of information and connectivity at an unprecedented speed and scale. Some of the first computer networks began in the 1950s and 60s, but unlike today’s global network, these early networks were centralized within certain businesses and agencies. It wasn’t until 1969 when
centralized computer networks became connected. Funded by the US Department of Defense, and developed by universities, this host-to-host network
connection, called ARPANET, a direct ancestor of the internet, was the first of its kind. The network grew, and by the 1980s, incorporate networks at
research institutions and other US Federal agencies, such as the National
Science Foundation, or NSF. The NSF connected these disparate networks into one large one. NSFNET, which shifted over from being a federally run network
to a commercial enterprise for internet service providers. – Telecommunications is going to become much much more important. Your computer is going to become your window into the world, really, in some degree. (modem connection noises) – [Narrator] By the late 1990s, this shift, along with the
rise of personal computers, the world wide web, and web browsers, allowed the general public
to access the internet for the very first time. Today, computers, smart
phones, televisions, video game consoles, and other devices, all tap into the network, and transmit and receive
data almost instantly. For example, by clicking
send in messaging apps, text, audio, and video are converted into pieces of electronic
data called packets. These packets are then
tagged with a port number and IP address. Much like the mailing
address on an envelope, the port number and IP
address direct the packets to a given destination on the internet. From there, the packets may travel over Wifi, cellular data, or
an ethernet or phone line. Through a series of routers,
modems, and servers, then through fiber optic
cables or satellites, and through a similar process in reverse to reach the packets destination. Once the packets arrive, their data is reassembled into the text, audio, or video that was originally sent. (machine buzzing)
(light music) Since the days of the
earliest computer networks, the internet has undergone
a tremendous transformation, while also transforming
the world that created it. From a closed off network, to one that covers the globe, the internet has provided
access to information to every continent, connecting people and
ideas like never before.

84 thoughts on “Internet 101 | National Geographic

  1. I like what NG is doing with their YouTube channel. They're a multi million to maybe a billion dollar company, yet they still post videos without ads to YouTube to educate people. I love what they're doing, keep up the good work.

  2. Because of the internet, we want everything in an instant, people lost patience to wait bc everything is fast from food, emails, business and also having a virtual relationship. Internet limits the quality time we spend with our family. It has advantages but also disadvantages.

  3. 1:47. Ah.. the music of our youth. Anxiously waiting for the music to end, hopeful for that email reply, or logging on to IRC. And then your sister just HAD to use the phone. Thanks for the nostalgia National Geographic.

  4. My internet isnt working tho..None of my friends mssges reach Me..My mom says says its coz I don't have friends but she is dumb

  5. Respected sir / mam, can you please make a small video on A.I
    A.I is changing the world with great speed, and it's one of the hot topics in the present world
    According to me, your content of knowledge about the world is incredible and your works are really a masterpiece.
    I hope you will look forward to it and most important we will get some valuable information about A.I

  6. Thanks to the internet… Only way I was able to find a picture of Popeye. And watching Elon musk is a real treat altogether

  7. Every day it becomes more and more obvious to me that the internet has evolved from the best communication tool to a portable advertising machine

  8. Of all the technological innovations in history, few have made as strong of an impact as the Internet. Watch Valley of the Boom to learn more about how it all started: https://on.natgeo.com/2D39Xrp

  9. Internet….
    The world is on our fingers….
    Thank u national geographiy for share the knowledge ….love you …😁😁😁

  10. Spectacular! Thanks NatGeo! Producing such good stuff. Quite an interesting snip into the birth of "the internet" as we know of it today. 🙂

  11. i told my landlord i can live without food and water for days but i cant live without internet for one hour so please fix it

  12. I'm at Brazilian internet watching another excellent 101 video produced by my favorite channel National Geographic!

  13. wow I'm dumb.

    The internet has changed MANY things. It was used to spread mass amounts of false information to get a Russian asset elected as the US president. While at the same time, because of the VERY same information sharing. It's going to MUCH MUCH more difficult for fascist dictators to keep their 'citizens' under control if/when they DO have access to such information. The very definition of double edged sword.

  14. I was started using the Internet with a 1Mbps connection at 2011…Now I am at 100 Mbps. Within 8 Years Internet has evolved a Lot…….. Technology is Fascinating :-0

  15. Internet should be free and accessible to everyone cus it's important to living as oxygen! Who's with me 🙌

  16. I love her voice oooomyggod I dieing ……dead dead good voice…
    Oooomyggod…..save me I want it

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