while moving towards internet we usually type the website and it gets loaded with an extention of https://.....or https://.....But actually what al the extentions mean and do we have anything to do with that???

The HTTP and HTTPS are the extentions responsible to give us access to the internet.

HTTP=Hyper Text Tranfer Protocol

HTTPS=Hyper Text Transfer Protocol Secure Socket Layer

so basically these are the protocols used for the internet access just like in our family we are following some protocols.

In HTTP the request is being sent by the user and the response is just been given by the server and the service is get availed to the user.Now the question comes that if we are getting the access through HTTP then what's the requirement of using HTTPS. The reason is very simple. Now the data theft is just done by the hackers while we as the user accessing the web page. So as a user we don't want our data to be theft. So HTTPS comes into the picture.Actually in HTTPS the service is same but the only uniqueness is that it gives a secure connection through certification and encryption i.e. server will be requested for the encryped certificate to match,then when the certificate matches then the access will be given to the client.There are a lot more things left back but this is just a brief and basic idea about HTTP and HTTPS