A few Macintosh telnet applications are mentioned on the Mac Helpers site, and it seems that the most common client for Mac users is NCSA Telnet. Both the Mac and Windows sites also list 3270 applications, which generally handle a tn3270 connection well. While there are many options for telnet applications on these sites, do not forget the commercial realm. Some of the commercial suites even come with multiple telnet clients, with different programs used for different terminal types. These can be quite important for users that need a special terminal emulation for connecting to their corporate or campus mainframe.
Terminal applications are basically telecommunications tools.
COMt, an Internet-accessible shareware program, can even fool older communications programs into making telnet connections. So if there isn't a telnet client on your computer, check the features of available communications programs. With such a variety of telnet software, choosing the best program is a matter of trial and error. Users should look for different features in their ideal telnet application, depending on their needs. For some, available terminal types can be a deciding factor, where for others, the choice may depend on the availability of a scripting language or the quality of terminal emulation.