Bitcoin uses peer-to-peer technology to operate with no central authority or banks. The issuing and transaction management of Bitcoins is carried out collectively by the network.
The bitcoins are stored in a digital wallet and people can pay and receive money like an online business such as credit cards and PayPal. Bitcoin is high profit and high risk investment.
BTC/USD is a financial Instrument, which price is based on contract for exchange rate of Bitcoin to US dollar.”