
Bitcoin is a digital payment system invented by an unknown programmer under the name of Satoshi Nakamoto. It is also called as crypto currency. It was released on 2009.
First, it was introduced as an open source software, this system transfer money through a peer-to-peer system, there is no intermediary like a bank, all details are recorded in public distributed ledger called a block chain.
Since the system works without a central administrator, Bitcoin is called the first decentralized digital currency. And has services in legal and illegal black markets.
As of Feb 2015, over 100,000 merchants and vendors accepted Bitcoin as...