GT Power is a bulletin board system (BBS) and dial-up telecommunications/terminal application for the DOS family of operating systems. It was first introduced in the 1980s by P & M Software, founded by Paul Meiners. GT Power can be used both to host a BBS as well as to connect to other BBS systems via its full-featured dial-up "terminal mode." GT Power was a shareware package that required a registration fee in order to access its proprietary network mail transport/handling software and, by default, the GT Power Network. The software is distributed in two "flavors"; a terminal-only version, nicknamed GTO, and the full-featured host and terminal version.