A bitcoin is a type of digital currency which can be bought, sold, and transfer between the two parties securely over the internet. It cannot be touched and seen, but it can be traded electronically. We can store it in our mobiles, computers or any other storage media as a virtual currency. Bitcoin can store values much like fine gold, silver, and some other type of investments. It can be used to buy products and services as well as make payments and exchange values electronically. It is the most popular cryptocurrency in the world.