What is the world wide web? | Mediateca de EducaMadrid

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The World Wide Web, where you're likely watching this video, 00:00:00

is used by millions of people every day 00:00:10

for everything from checking the weather, 00:00:13

ordering food, and chatting with friends, 00:00:15

to raising funds, sharing news, or starting revolutions. 00:00:17

We use it from our computers, our phones, even our cars. 00:00:21

It's just there, all around us, all the time. 00:00:24

But what is it exactly? 00:00:27

Well, first of all, the World Wide Web is not the Internet, 00:00:28

even though the terms are often used interchangeably. 00:00:32

The Internet is simply the way computers connect to each other 00:00:35

in order to share information. 00:00:37

When the Internet first emerged, 00:00:39

computers actually made direct calls to each other. 00:00:41

Today, networks are all around us, 00:00:44

so computers can communicate seamlessly. 00:00:46

The communication enabled through the Internet has many uses, 00:00:49

such as email, file transfer, and conferencing. 00:00:51

But the most common use is accessing the World Wide Web. 00:00:55

Think of the Web as a bunch of skyscrapers, 00:00:58

each representing a web server, 00:01:01

a computer always connected to the internet, 00:01:03

specifically designed to store information and share it. 00:01:05

When someone starts a website, 00:01:08

they are renting a room in this skyscraper, 00:01:10

filling it with information and linking that information together 00:01:13

in an organized way for others to access. 00:01:15

The people who own these skyscrapers and rent space in them 00:01:19

are called web hosts, 00:01:21

but anyone can set up a web server 00:01:23

with the right equipment and a bit of know-how. 00:01:24

There is another part to having a website 00:01:27

without which we would be lost in the city 00:01:29

with no way of finding what we need. 00:01:31

This is the website address, which consists of domain names. 00:01:33

Just like with a real-life address, 00:01:36

a website address lets you get where you want to go. 00:01:38

The information stored in the websites is in web languages, 00:01:41

such as HTML and JavaScript. 00:01:44

When we find the website we're looking for, 00:01:46

our web browser is able to take all the code on the site 00:01:48

and turn it into words, graphics, and videos. 00:01:52

We don't need to know any special computer languages 00:01:55

because the web browser creates a graphic interface for us. 00:01:57

So in a lot of ways, the World Wide Web is a big virtual city 00:02:01

where we communicate with each other in web languages, 00:02:05

with browsers acting as our translators. 00:02:08

And just like no one owns a city, no one owns the web. 00:02:10

It belongs to all of us. 00:02:14

Anyone can move in and set up shop. 00:02:15

We might have to pay an internet service provider to gain access, 00:02:17

a hosting company to rent web space, 00:02:21

or a registrar to reserve our web address, 00:02:23

Like utility companies in a city, these companies provide crucial services, 00:02:25

but in the end, not even they own the web. 00:02:30

But what really makes the web so special lies in its very name. 00:02:33

Prior to the web, we used to consume most information in a linear fashion. 00:02:36

In a book or newspaper article, 00:02:41

each sentence was read from beginning to end, page by page, 00:02:43

in a straight line until you reached the end. 00:02:46

But that isn't how our brains actually work. 00:02:49

Each of our thoughts is linked to other thoughts, memories, and emotions 00:02:51

in a loose, interconnected network, like a web. 00:02:55

Tim Berners-Lee, the father of the World Wide Web, 00:02:58

understood that we needed a way to organize information 00:03:01

that mirrored this natural arrangement. 00:03:04

And the web accomplishes this through hyperlinks. 00:03:06

By linking several pages within a website 00:03:09

or even redirecting you to other websites 00:03:11

to expand on information or ideas immediately as you encounter them, 00:03:14

hyperlinks allow the web to operate along the same lines as our thought patterns. 00:03:18

The web is so much a part of our lives 00:03:23

because in content and structure, 00:03:24

it reflects both the wider society and our individual minds. 00:03:27

And it connects those minds across all boundaries, 00:03:31

not only ethnicity, gender, and age, but even time and space. 00:03:34

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