Bitcoin in simple words is a digital currency which is being used by people to send and receive payments.

Like in Pakistan we have JazzCash , Easypaisa and other digital platform, Bitcoin is same like them which can be mined, transferred. 

No one knows the real developer of the Bitcoin but Satoshi Nakamoto is the person whose name is there in developer list of bitcoin. But in reality , No one knows about this person who is he or where from he is. Many people claimed to be Satoshi but could not verified the real person.


Bitcoin was first built by Satoshi Nakamoto (No one knows him) , built in January, 2009.
First time trading of bitcoin started in July, 2010 with the price 0.0008$ to 0.08$.
The developer of bitcoin has connected no server with bitcoin so if you loose your password , hardware wallet or anything you won't recover it.
                                
Like Facebook , youtube , google each of them and many others have servers located in each region from where you can send message/data to that server and that server shows message/data to the receiver.
 But BTC has no server , then Question is HOW BTC payments are sent from one wallet to another?




Satoshi has made a system that normal people with high graphics cards and super fast computers will be used to send and receive the payments.
Let suppose , there are three persons A,B,C.
Person A wants to send bitcoin payment to Person B but we have no server/no medium . How it will be sent to other person. 
There start the work of Person C who have a faster computer with high graphics , he has a software running in his computer and the computer is getting and processing the sending and receiving bitcoins as a server and as a reward, Person C is getting reward in bitcoins because he is presenting his computer for as a server.



Person C whose computer is being used as server is Called as Bitcoin miner and the process to mine a bitcoin is called bitcoin mining. Above picture shows you how this computer components looks like.

As of i am writing , bitcoin price has increased from 0.08$ to 50,000$ and is the future.