Virtual currency is a kind of electronic money which remains in the form of information on a computer and is traded only in cyber currency. It is also called 'cryptography' because it can generate a new coin using passwords or secure transactions.
Virtual currency is 'Bitcoin' developed by Satoshi Nakamoto in 2009, and various virtual currencies are now on display.
Money is centralized, with the central banks of each country having authority to issue it, but virtual money is distributed as a network type.