Bitcoin
Bitcoin The world’s first so-called digital currency. The concept for bitcoin was published online in 2009, written under the still-unidentified pseudonym Satoshi Nakamoto. Bitcoin was groundbreaking because it can be sent or received without the need for a central administrator, such as a bank. The underlying technology that allows people to transact with one another directly is called the blockchain
Welcome to Steemit waqarahmed. Let me know if you got any questions about Steem or anything related to it! The official FAQ can be found here and has A LOT of information https://steemit.com/faq.html - Also remember, Steemit is just ONE of the sites built that uses Steem the blockchain. We also have DTube - our very own Youtube, DSound for Soundcloud and Steepshot if you prefer Instagram like experience. I'd also like to mention ChainBB - forums, Busy - Steemit with more modern look basically, DMania for memes and Dlive for streaming just like in Twitch! Welcome to the blockchain