Bitcoin is a decentralized digital currency, without a central bank or single administrator, that can be sent from user to user on the peer-to-peer bitcoin network without the need for intermediaries. Transactions are verified by network nodes through cryptography and recorded in a public distributed ledger called a blockchain.
Bitcoin is unique in that there are a finite number of them: 21 million.
Bitcoins are created as a reward for a process known as mining. They can be exchanged for other currencies, products, and services.
 As of February 2015, over 100,000 merchants and vendors accepted bitcoin as payment..
To buy bitcoin with bank transfer, first set up a wallet to store your bitcoins. Then find a reputable bitcoin exchange that will allow you to buy bitcoins with bank transfer.
To make your purchase, simply enter your bitcoin wallet address and the amount of bitcoins you wish to buy. The exchange will then send you a confirmation email with instructions on how to complete your purchase.
Once you have completed your purchase, the bitcoins will be deposited into your wallet. You can then use them to make purchases or send them to other users.
Bitcoin is a versatile currency that can be used to purchase goods and services online or in person. With more and more businesses beginning to accept bitcoin, it has never been easier to use this digital currency.