How the Web Works?

Introduction: How many times a day do use the internet? How many times do you  load a different webpage? It's incredibly important to understand how the web works.

 How the web works?. It is a system of interconnected pages of information stored on publicly accessible servers. The World Wide Web(www) is based on several different technologies that make it possible   for users to locate and share information through the internet. These include Web browsers, Hyper Text Markup Language(HTML) and Hyper Text Transfer Protocol(HTTP).

To access webpages, you must use a Web Browser. Web Browsers are program that displays text, data, pictures, animation and video on the internet. Web Browsers  were only used for surfing the web. Some examples for commonly used Web Browsers are Internet Explorer, Google Chrome, Mozilla Fire Fox and Safari. 

The World Wide Web was developed by Tim Berners-Lee in 1991. Tim Berners-Lee being familiar with Hyper Text proposed the idea of  creating s global hyper text system .He named his system the World Wide Web. 

Parts of the Web

Here are the most important secret of the World Wide Web.

Client : An application such as Chrome or Internet Explorer that runs on a computer and is connected to the internet. Its primary role is to take user interactions and translate them into requests to another computer called a Webserver. Your computer as the "Client" piece of the client server model. Every  client computer has unique address called an IP(Internet Protocol) address that other computers can use to identify it. 

Server: A machine that is connected to the internet and also has an IP address. A server waits for requests from other machine(eg. Client) which also has an IP address, the server has special software installed. The primary function of a webserver is to store, process and deliver web pages to client.

IP Address: Internet Protocol Address. Every computer on the internet has an IP address that is uses to identify and communicate with other computers. IP address have four set of numbers separated by decimal points(eg  157.55.39.207). This is called the logical address. 

DNS: Domain Name System. The internet's system for converting alphabetic names into numeric IP addresses. For example , when a web address(URL) typed into a browser, DNS servers return the IP address of the web server associated with that name.

Domain Name: Domain identifies  a network domain. Users use the domain name (eg.www.Amazone.com) to get  a website on the internet. When you type the domain name in the browser, the DNS uses it to lookup the corresponding IP address for that given website.

TCP/IP: Transmission Control Protocol/Internet Protocol. A protocol is simply used a standard set of rules for doing something. TCP/IP is used  for transmitting data over networks.

Port Number: A 16 bit integer associated with an IP address. It identify a specific process on a server that network requests could be forwarded to.

Host: Servers are a type of host, they are specific machine.

HTTP: Hyper-Text Transfer Protocol. The communication protocol used to connect to web servers on the internet. Its primary function is to establish a connection with the server and send HTML pages back to the user's browser.

URL: Uniform Resource Locator. URLs identify a particular web source.eg. https://www.amazone.com.

These are the basic fundamental things of the Web.