downloading

[owen666]

why when i'm downloading with utorrent why is ther uploading happening?

[Buenchico]

All file-sharing systems work on the basis that, while you're downloading files from someone else's PC, others can download shared files from your PC. So it's unsurprising that your PC identifies uploads taking place, since that means others are accessing your shared files.

Incidentally, it's the fact that you've got files available for upload that makes the file-sharing (without permission or payment) of copyright materials a criminal offence, as well as a civil one. (It's only a civil offence to download files, other than on a large scale or for commercial gain, but making files available for upload counts as 'distribution', which is a criminal offence).

Chris

[Hammer]

Sort of what Buenchico said.

With torrents, once you have some of the file you are downloading, you then upload that part of the file to other users.

The analogy often used is like sharing a book by photocopying. If the book has 100 pages and you already have copies of pages 1-10, you can then start giving out copies of those 10 pages, even though you don't have the whole book.

That's what's happening. You're uploading the bits of the file that you do have even though you don't have it all.