HTTP:
====
	==> Hyper Text Transfer Protocol
	==> Protocol ==> set or rules
	==> HTTP protocol describe about the:
		format of Request
		format of Response

client ===========> request ===========> server
<=============================================
		Response

==========================================
WEB APPLICATION:
================
APPLICATION:
============
	==> Collection of programs for multiple events
	ex: WhatsApp
		{
			check the contacts
			can post the status
			can read/check other's status
			texting
			audio calling
			video calling
			banking transactions
		}
	==> Application (app) can always run on platform (OS)
	ex: WhatsApp, Phonepe, Instagram etc. ==> Mobile applications
			mobile dependent platforms/os
				Android, IoS
	ex: notepad, word, excel etc. ==> OS (Windows)

Software:
========
	==> Collection of programs for multiple events
	Ex: Windows, Linux, Android etc.

==> Applications are classified into three types:
	1) Standard Applications
	=========================
		we need a platform like os
		can use in only one device at a time.
		Ex: Notepad, Calculator etc.

	2) Web Applications
	====================
		The applications can access through internet called as "Web applications"
		ex: Gmail, Youtube, Amazon etc.

	3) Distributed Applications
	===========================
		Ex: Phonepe ==> 3rd party application

		Phonepe ==> Check my account Balance
			Phonepe =============> Our bank application/server (ICICI)
				User: UPI Id 
				UPI PWD
				<=================
				Response:
					My account Balance
		==> An application can interact with other application to accomplish any task is called "Distributed Application".

For UI Development:
	Three major technologies:
		1) HTML ==> Hyper Text Transfer Protocol
			we can able display any web content
		2) CSS ==> Cascading Style Sheets
			we can define more style to web content
		3) JavaScript