(or Noughts and Crosses
) is a player vs. computer Tic Tac Toe
game which was written by Alexander S. Douglas in 1952 for the one-of-a-kind EDSAC computer
at the University Of Cambridge. The single-player "game" was designed for academic purposes — Douglas used OXO
on the famous EDSAC to study the "Interactions Between Human and Computer".
Like electronic Nim
, electronic OXO
wasn't designed to be entertaining.OXO
was the first digital graphical game to run on a computer, and was rather simple to use — the player played against the computer, with output displayed on the computer's 35×16-pixel cathode ray tube. The source code was short, yet played a perfect game of noughts and crosses.
The game didn't have widespread popularity, though, mainly because the EDSAC was a computer unique to Cambridge.
This game provides examples of: