BitTorrent

Definition:

BitTorrent is a peer-to-peer protocol that allows computers to distribute files. Unlike other file sharing protocols, BitTorrent relies on multiple computers to share tiny pieces of each file. Therefore no one computer has the burden of having to distribute the entire file.

BitTorrent networks are used widely to distribute large music and video files.

Here's a word you may not know...

browser

A browser is a software application for a computer that allows you to view web pages on the Internet, or world wide web. Popular Internet browsers include Internet Explorer, Firefox and Safari although there are many others.