Bitcoin, or BTC, is a digital currency issued on the market in 2009 by an anonymous creator hiding under the name of Satoshi Nakamoto.
Bitcoins can be stored on a personal computer as a wallet file or by a third-party platform which stores BTC wallets. They can be sent through the Internet to anyone who owns their personal Bitcoin wallet.
The main advantage of Bitcoin and other digital currencies is independence from any government or institutions – decentralization. Safety of the coins is ensured by a database distributed throughout peer-to-peer that keep all transactions and cryptography of Bitcoin. The transactions take place between users without any interference of intermediaries.
There is no possibility to create more coins than intended amount for the market. In case of Bitcoin it is 21 milion pieces. This way the inflation is almost impossible. But it is possible to speculate on the Bitcoin value. That's why it can be exchanged and one can try to make money on the changing BTC rate.