Introduction to Web

What is web?

Web is an interconnected system of public web pages that are available on and accessible through the internet. At first, it was created to share information like documents and other downloadable content but after some time it was made to share information among people eg. email, instant messaging, etc. web pages are accessed with the help of web browser.

There are many components of "the Web":

i) HTTP protocol manages the data transfer between the client and the web server.

ii) Web pages are accessed with the help of a component called URL (Unique Resource Locator).

iii) HTML is commonly used for publishing web documents.

What is a web server?

A web server is a computer that stores web server software and a website's files in it eg. HTML, CSS, Javascript, etc. Web server helps in the interchange of these files or information between other devices connected to the internet. The web server runs with the help of HTTP protocol which governs the transfer of data between the server and the client. HTTP Server accepts the request from the client and helps in accessing the particular files with the help of domain name or IP address.

Apache:

Apache HTTP server is a free and open-source cross-platform web server software that processes requests and serves web assets and content via HTTP.

Live Server:

The Live server is the plugin used in the code editor which helps developers to make the changes in the code and see the changes in real-time without refreshing the browser.

Emmet:

Emmet is the plugin used in code editor that helps developers to write code efficiently. It has a lot of shortcuts which help in writing full pieces of code and makes writing code very easy and it reduces repetitive tasks for the developers.

HTML:

HTML (Hyper Text Markup Language) is the markup language which helps in giving structure to the documents that are to be displayed in a web browser.

h1, h2, h3: are the heading tags that are used in HTML h1 has the largest font for the heading tag and h6 has the smallest size of the font for the heading tag.

p tag: this tag is called a paragraph tag it is used to write the paragraph on the website.

img tag: img tag is used to add images on the website it has a lot of attributes like src which specifies the source of the image and alt tag which helps to display the alternate message if the image is not accessible.

link

a tag: a tag is used to define a hyperlink which is used to link one page to another