Think of it as an online library to download from. Whenever you type a file name into your torrent search engine, whether new movies, popular music releases, software, TV shows, or any content, it combs the internet, finding the best downloads available. The torrent site search algorithm will then find the addresses of computers sharing torrents with the content you’re searching for.
File sharing on a P2P (peer-to-peer) connection uses a communication protocol called BitTorrent. BitTorrent then uses a client app to implement the protocol, which provides users with a list of files available for transfer.
Note that some file servers you find are private and require an invitation to join.