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The First Application Of BlockChain Is:-
The first application of BlockChain is Bitcoin. Bitcoin is a cryptocurrency. It is decentralized digital currency without a center bank and a single administrator that can be send or receive from user to user on the peer to peer bitcoin network without any intermediaries. Satoshi Nakamoto.
It can be sold, purchased for other currencies at specialized currencies exchanges. They are completely virtual with no physical existence.It is secure fast and border less. In transaction our transaction is secure and fast. The coin are implied in transaction that transfer value. Each bitcoin is basically a computer file whi,ch is stored in a 'digital wallet' app on a smartphone or computer.Bitcoin is invented in 2009 by an unknown person or group of people using the name
Ten most bitcoin holder countries are:
#The united state,
#The Czech republic,
#South Korea,

Lesson no 1

What is BlockChain?  
Blockchian is a shared immutable ledger or just a ''unchangeable record of who owns what".

In its simplest form blockchain is a decentralized distributed database, an unchangeable record or ledger or assets ownership.

Global and peer to peer and distributed immutable record of transaction.
The ledger is often used to track and manage assets ownership, however blockchain can be a simple record keeping device for any and all kinds of data, whether that data related to any assets  ownership or not.
Although blockchain is often described as a new and cutting-edge technology, the truth is blockchain is nothing more than a creative amalgamation of many old concepts, technologies and methodologies. These concepts include ledgers, cryptography, group consensus immutability and more.

Python is vastly used language. It is best programming language for Artificial Language and Data Sciences. Now Python is leading all programming language by ranking at second most popular language. In this course we will start from scratch and go to expert level of learning. First of all we discuss about how to install and run python on our system.

How to Run First program?

  • Download anaconda Python 3.7 and Install it (available for windows, Linux, mac OS).
  • After installation go to anaconda and open jupyter notebook (image below).
  • Now click on New at right top side and then click on python 3 from drop down menu (Images below)
  • Now you will be redirected to new Jupyter page. Here we write our first program in Python.
  • Your first program may be Written on Print function.
print("Hello World")