  With TCP/IP now in place, privately owned computer networks—including LANs (local area networks) and WANs (wide area networks)—were able to communicate with one another and, in principle at least, also able to exchange vast amounts of information over the network. However, another protocol—one that would be layered on top of TCP/IP—was needed to accomplish this objective. So, FTP (File Transfer Protocol), a client/server-based system, was developed and implemented in response to this need. To exchange or share files with a fellow Internet user in this scheme, one first had to set up an FTP  server.[1]  Users could then upload files to and retrieve them from an FTP server, via an FTP client. Perhaps more importantly, they could also now effectively search for files with one of the newly developed search engines, the first of which was called ARCHIE.