What is a bitcoin?

How does a bitcoin work? What is cryptocurrency?
And can pay.

Bitcoin is a new currency created in 2009. The transaction takes place with no middle men - meaning, no bank! There is no transaction fee and no need to give your real name. More and more merchants are accepting them: you can buy pizza, Amazon gift cards, or even manicures.
So, how does it compare to cash? Remember, your money in the bank does not include cash filled in cube holes in the building down the street. When you look at your bank account online, all you really see is digital dollars, euros, yen, pounds, francs, etc., backed up to computer servers around the world.