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Internet

✨ The great global web

The Internet is a worldwide network that connects millions of computers, servers, and digital devices so they can exchange information. It works through a combination of physical infrastructures, such as fiber-optic cables, satellites, and data centers, along with communication rules called protocols.

When a person visits a website, sends a message, or watches an online video, data is divided into small units called packets that travel through different networks before reaching their destination. The Internet has transformed the way people communicate, learn, work, and access information.

It supports many services, including websites, email, online education, cloud storage, and digital entertainment. Although it may seem invisible, the Internet depends on complex systems managed by many organizations around the world.

Its development has brought many opportunities but also challenges, such as protecting personal data, improving cybersecurity, and ensuring that everyone can access digital resources.

💡 Did you know?

Did you know that the Internet and the Web are not the same thing? The Internet is the network of cables and hardware (like the roads). The Web is the set of sites you visit (like the cars driving on those roads). The Web was invented by Tim Berners-Lee in a laboratory in Switzerland to help scientists share their ideas more easily.

How does your data cross the oceans? It travels in huge undersea cables laid on the seabed. Some are as thick as an arm and can carry tons of information from one continent to another in the blink of an eye. Without these cables hidden underwater, you could not talk to someone living in America or Asia!

On the Internet, your information does not travel in one single block. Your message is cut into thousands of small pieces called 'packets.' It's like taking apart a Lego toy to send it in several different envelopes. Upon arrival, your friend's computer receives all the pieces and reassembles them instantly to reconstruct the original message.