Uploading, to the regular computer user, mainly deals with photos, but the term is also used with other files like documents and music, too. Basically, uploading is the transfer of a file from your computer to another system via the Internet. You can also upload files from your computer to a server over a local area network (LAN) or an FTP  server.
Uploading is like the reverse process of downloading. Instead of bringing the file to your computer, you’re sending it off to another system. You can upload files to be used on personal Web sites, any profile type sites you may be a part of (for example, MySpace), etc. As long as you have the file saved on your computer, you can upload it to be seen by more people than just you. It’s a really easy way to share things with your family and friends and it’s so simple to do.