1. Skills: finding and downloading files with Bit Torrent Concepts: client-server, peer-to-peer, copyright, Creative Commons This work is licensed under a Creative Commons Attribution-Noncommercial-Share Alike 3.0 License. Bit Torrent, a peer-to-peer application

2. Where does this topic fit? Internet concepts – Applications – Technology – Implications Internet skills – Application development – Content creation – User skills

3. Client Server request Service Client-server architecture

4. Client & server Client & server request Service Peer-to-peer architecture

5. Search for a “torrent” file

6. A torrent

7. Downloading a file

8. Progress detail

9. Client and server

10. Download complete, serving both files

11. Two views of Bit Torrent

13. Summary Client & server Client & server request Service

14. Self-study questions 1.Is email a client server application? Explain your answer. 2.Is email a peer-to-peer application? Explain your answer. 3.If a company had to distribute copies of a 509 megabyte file to each of 1,000 branch offices, would they be better off using Bit Torrent or FTP? Explain your answer. 4.Do a Web search to determine the approximate amount of Bit Torrent traffic per day on the Internet. What is your source? Do they consider Bit Torrent significant? 5.Will Bit Torrent become more or less important in the future? Explain your answer. 6.Find a pirated copy of Elvis Presley singing Heartbreak Hotel using a torrent search site. Is that song copyrighted? Would you feel badly about downloading and playing it? 7.Watch and summarize Larry Lessig’s presentation on copyright.

15. Resources Searching for Torrents: http://www.techsupportalert.com/content/searching- torrents.htm http://www.techsupportalert.com/content/searching- torrents.htm What is Bit Torrent? http://www.techsupportalert.com/what-is-bittorrent http://www.techsupportalert.com/what-is-bittorrent Download Bit Torrent: http://www.bittorrent.com/http://www.bittorrent.com/ Bit Torrent explained by Commoncraft: http://commoncraft.com/bittorrent-video http://commoncraft.com/bittorrent-video Creative Commons: http://creativecommons.org/http://creativecommons.org/ Full Larry Lessig copyright presentation: http://randomfoo.net/oscon/2002/lessig/free.html http://randomfoo.net/oscon/2002/lessig/free.html Larry Lessig copyright presentation, all material: http://randomfoo.net/oscon/2002/lessig/ http://randomfoo.net/oscon/2002/lessig/