Bitcoins are the most common form of cryptocurrency. They are the first ever created cryptocurrency. Bitcoins (also abbreviated to BTC) can be obtained in a number of ways, such as mining, faucets, games, or by purchasing them. One bitcoin is equal to 100,000,000 satoshis. Satoshis are parts of a bitcoin, basically. The amount of satoshis you own is usually in decimals, for example, 1 satoshi is equal to 0.00000001 BTC. Depending on the rates, one bitcoin can equal more than 10,000 US dollars. There are special wallets for storing, sending, or recieving BTC.
Changes of value in USD from 2010 to 2017