It is a protocol for transferring files over the Internet. It allows you to login to other computers on the Internet and download files they have made available to the public. Archie is a program that allows you to locate files on the Internet. When you do an Archie search, it returns the FTP address of the server where you can find the file you are looking for, as well as the path and file name of the file. Your Archie program is called WSArchie and is accessed through the icon called Archie.
Gopher is still another Internet protocol.
Gopher is a large database managed by super-computers. Your Internet Gopher program is WSGopher and accessed though the icon labeled Gopher. Newsgroups are the discussion groups of the Internet. Anything you can possibly imagine has a discussion group. Telnet is an Internet protocol that allows the user to login to another UNIX machine connected to the Internet.