An '''upload''' is the act of sending files from a local workstation to a remote workstation.
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The File Transfer Protocol (FTP) is the Internet facility for downloading and uploading files. (If you are uploading a file to another site, you must usually have permission in advance to access the site and the directory where the file is to be placed.)<ref>http://whatis.techtarget.com/definition/0,,sid9_gci213255,00.html</ref>
The opposite of this activity is called, [[Download| downloading]]. Uploading is usually slower than downloading. This is due to the [[Bottleneck| bottleneck]] at the [[Modem| modem]].