FTP (File Transfer Protocol) definition
FTP (File Transfer Protocol) is a communication protocol designed for file transfer between a client and a server. FTP is a standard Internet protocol and uses TCP/IP for transferring the file from one device to another. It was created in 1971 (RFC 114) by Abhay Bhushan. Later it was updated in 1980, adding the TCP/IP compatibility. Finally, and some years later, in 1985, we got to the current version.
With the time IPv6 support was added, and so was added security extension for FTP.
FTP was used straight off the Command Prompt or Terminal in the past since there was no graphic user interface (GUI). Now, there are FTP server applications and FTP client applications, both for computers and mobile devices, that provide a GUI.