FTP stands for File Transfer Protocol and is a common way of transferring files from one computer to another across networks
FTP is just one communications protocol on the web. Others include:
- Transmission Control Protocol (TCP) tcp
- User Datagram Protocol (UDP) udp
- Internet Control Message Protocol (ICMP) icmp
- Hypertext Transfer Protocol (HTTP) http
- Post Office Protocol (POP3) pop3
- Internet Message Access Protocol (IMAP) imap
FTP on Wikipedia