What are Bitcoins?

Bitcoins are very different from virtual money, because bitcoins are generated by a mathematical algorithm using blocks of data that are structured from one computer to another leaving an exact copy in each block of the mathematical operation, being impossible to alter or falsification by the immediate comparison of the previous operations; unlike the virtual money is controlled by a central bank that emits the money electronically.
The value of bitcoin is established by the degree of confidence of the people in their inviolability since nobody controls it, it does not depend on a central server, it is totally anonymous, since, the owner of bitcoins or its fractions (Satoshis) has is a wallet address where they are saved and that address in a sequence of symbols and letters unique to each wallet.
When bitcoin is sold or bought, those fractions of bitcoins are transferred from one wallet to another, exchanging possession from one user to another, this is the sale operation that exists with this coin, that one user sells bitcoin to another in exchange for a specific currency (Dollars, Euros, Pesos, etc.).
The exchange of bitcoins is very speculative because it depends on supply and demand. This is the production of bitcoins using high performance computer systems or using personal computers as blocks in the operation and that is called mining.
The origin of bitcoin is not officially established, there are many theories that try to explain its origin but to date none can be taken for granted, it is only true that the operations of mines and exchanges of bitcoins and their fractions began in 2011 with a initial value of $ 24 and currently in September this year (2017) has a value of $ 3865.64 per 1 Bitcoin.