Computer A 
Computer B
°Earlier US Gov. Created a program that is "ARPA" (Advanced Research Projects Agency).
°ARPA developed to "ARPANET" for communicate to each other accross the ARPA's centers.
°They were 4 ARPA's center-
•MIT •Standford •UCLA •Utah
°They were using protocol (TCP/IP) for communicate.
°Afterwards, more & more computers also centers were added and still using protocal (TCP/IP) for communicate.
°Many people wanted to share the research project & stuff, which was not really working in this domain.
Actually things happend is that the I wanna send the research project Documentation from "Mit" to "Standford" and in the document there was some sort of other document which is interlinked with hyperlink. This was  the things was we missed in it, we are not able to access the other some documentation, which is in hyperlink.
Then Here comes "WWW".
°World Wide Web developed by Tim Berners-Lee.
°The World Wide Web is an information space/System, Where Documents and other web resources are identified by "URLs", interlinked by hyperlinks and can be accessed Via the INERNET.
:-Protocols are basically rules that's are defined by "INTERNET SOCIETY".
Example:- (Different types of data i am trying to send over the Internet,
So different types of rule will be required. They might be some rules set by someone.
If you sending a secure file, the Internet should make sure that the 100% of data that you have sent will be delivered.)
These rules are setup by Internet society People, How a particular data is being send, is known as protocols.
Examples of Protocols:- TCP/IP , UDP, e.t.c.
:- The idea is it will ensure that the data will reach it's destination and it will not be corrupted on the ways.
:- When you do not care about 100% of data is reaching or not whom ever want to send the data.
For example- Video Conferencing.
:- This the used by Web browser. It defined the format of the data is being transfer between Client and Servers.
