Bitcoins can be bought on exchanges, or directly from other people via marketplaces. You can pay for them in a variety of ways, ranging from hard cash to credit card
1. What is Bitcoin?
Bitcoin is a decentralized digital currency, that can be sent from user to user on the peer-to-peer network
Transactions
Transactions are verified by network nodes through cryptography and recorded in a public distributed ledger called a blockchain
Bitcoin Creation
Bitcoins are created as a reward for a process known as mining. They can be exchanged for other currencies, products, and services
Bitcoin Number
Bitcoin is unique in that there are a finite number of them: 21 million
that makes it perfect and unique
Bitcoin Acceptance
As of February 2015, over 100,000 merchants and vendors accepted bitcoin as payment
Decentralized
The bitcoin network is not subject to regulation by any central authority
so you do need not any third party