Most people who have viewed web pages on the Internet are familiar with HTTP (Hyper Text Transfer Protocol). This is the protocol used to view pages using a Internet Browser. Another similar method of accessing files on the Internet is FTP (File Transfer Protocol). This is a method that allows uploading and downloading of multiple files unlike HTTP which is usually used for viewing pages or downloading one file at a time. A sample address of an FTP site would be ftp://ftp.microsoft.com orftp://ftp.3com.com
An FTP site is basically a web site that resides on a web server. An FTP web server is a computer that is connected to the Internet and is running some web server software such as Microsoft Internet Information Server (IIS), BulletProof FTP Server, WS_FTP Server, etc. The FTP server can run on a number of different operating systems including Windows, Unix, Linux, and others.