How does internet work

How does internet work 

The internet is a global network of interconnected computer networks that 

allow for the exchange of information and communication between individuals and organizations around the world. But how does the internet work? In this article, we'll explore the basic concepts behind how the internet works.

The Internet Protocol (IP) Address

Every device that is connected to the internet is assigned a unique IP address. This is a numerical label that identifies the device on the network. IP addresses are typically represented in four sets of numbers, separated by periods (e.g. 192.168.1.1).

Data Packets

When data is sent over the internet, it is broken up into small packets of information. Each packet contains the data itself, along with information about its destination, origin, and sequence number. These packets are sent through the internet using a variety of protocols, such as the Transmission Control Protocol (TCP) or User Datagram Protocol (UDP).

Routers

Routers are devices that connect different networks together. They receive packets of data and use information contained within the packets to determine the best route to send the data to its destination. Each router along the way makes these decisions, until the data reaches its final destination.

Domain Name System (DNS)

Humans find it easier to remember domain names (such as google.com) than IP addresses. The Domain Name System (DNS) is a hierarchical system that maps domain names to IP addresses. When you type a domain name into your web browser, your computer sends a request to a DNS server to look up the IP address associated with that domain name.

World Wide Web (WWW)

The World Wide Web (WWW) is a collection of interconnected documents and resources that are accessible over the internet. These resources are identified by Uniform Resource Locators (URLs), such as https://www.google.com. When you click on a link or type a URL into your web browser, your computer sends a request to the server hosting that resource, and the server sends back the requested information in the form of data packets.

Security

The internet also includes security protocols to protect sensitive information from unauthorized access or interception. The most common of these protocols is the Secure Sockets Layer (SSL) or Transport Layer Security (TLS) protocol, which encrypts data as it is transmitted over the internet.

In conclusion, the internet is a complex and interconnected system that allows for the exchange of information and communication on a global scale. Understanding the basic concepts of how the internet works, including IP addresses, data packets, routers, DNS, WWW, and security protocols, can help you better navigate and utilize this powerful tool