Bitcoin is the first and (at the moment) the most successful attempt to create a decentralized currency or, more precisely, a decentralized way of transferring value.
Bitcoin is based on the idea of transferring value without going through a central intermediary (peer-to-peer principle). When transferring bitcoin, you do not need a bank or a central accounting center therefore, your transfer cannot be canceled and your money cannot be blocked (withdrawn, etc.).
At the moment (2017), there is heated debate about whether Bitcoin is money most tend to consider it a product, either a value or an author’s sign. We, in our company, are inclined to consider it money, because it has the properties of money (more so than any other thing on the planet).
Bitcoin is the best type of money and so it gains value so quickly (in 2017 it grew in price by 15-20 times) and in 5 years by 200 times.
What is bitcoin? This is a record in a distributed database.
What does it mean to have bitcoin? This means having a private key (256-digit binary number) that can decrypt a memory cell.
What does it mean to transfer bitcoin? This means decrypting the code containing the record with 1 bitcoin and then encrypt it with the foreign public key (after that, only one who has the corresponding private key can decrypt it).
How to get bitcoin? You can buy bitcoin on an exchange (such as ours), or "get" it and solve a difficult mathematical problem.