Where email allows individual users to send each other shortish messages, and the web allows users to retrieve shortish pages of information, the FTP (File Transfer Protocol) service provides a way to make files of arbitrary size and content available to anyone on the Internet.
An FTP address identifies a file or a directory of files. The following example FTP address identifies a particular text file in the Rocksoft FTP archive.
ftp://www.rocksoft.com/clients/rocksoft/papers/crc_v3.txt
Usage:FTP is an essential Internet service that almost
everyone uses, as it provides the cleanest way to transfer files around
the Internet.
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