FTP is the method used to transfer computer files through the internet. FTP stands for File Transfer Protocol. Although you can attach files to an e-mail, as mentioned above, FTP is used a little differently. FTP allows you to maintain specific files on the internet that other users can get whenever they want. You can store a whole catalog, technical manual or other valuable information in a file area that is accessible to the internet.
Users can then come and get that information from the file area and bring it to their own computer.
They can then review the information any time they want. You can charge people for taking your files, you can credit them for taking your files or you can let them have the files for free.