Hi! I'm Bloo!! A Download is basicly a direct file being pulled from a server from one source.
A torrent is essentially a small file with link information in it, telling your computer who has the files, and what they are called. When you open the torrent, it begins to search for other users with the same torrent, and begins downloading files from every single person (peers) at once. Torrents can have up to 1000 peers (very fast download) compared to downloads (only 1 peer max). Terms: A peer is a person who has the file but is not complete, you can download from these people while at the same time downloading from SEEDERS. Seeders have the entire file and only hand out parts of it that peers dont have, to optimize connection usage.