Tic Tac Toe (or “noughts and crosses”) is a game where you need to get three of your pieces in a row.
This version of the program is part of the old programs for new computers collection. It was written for a 1970s era operating system called CP/M but it has been recompiled to run on Windows computers.
The original program is ttt1.c.
A ZIP which contains the Windows version is ttt.zip.