How do I use GCG from a Mac?

You need a modem connection or network connection, as well as terminal emulation software. A minimal terminal emulation software package is Versaterm. If you are likely to want GCG Graphics (e.g. to see a graphic display of a restriction map) you will need something like Versaterm Pro. The most common free software is NCSA Telnet, but this software causes known problems with the cursor keys and has poor graphics capabilities. You can also use X-terminal emulator software which has good graphics capabilities.

Versaterm and Versaterm Pro are available from

NCSA Telnet is available from NCSA, University of Illinois.