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OXO played in an EDSAC emulator for System 6/System 7 running in Classic in Mac OS X v10.4.3.
|Genre(s)||Paper and pencil game|
|Distribution||Delay line memory|
OXO was a computer game developed by Alexander S. Douglas in 1952 for the EDSAC computer, which simulates a game of Noughts and crosses, also sometimes called Tic-tac-toe. Douglas programmed the game as part of his Ph.D. thesis on human-computer interaction for the University of Cambridge. OXO is the earliest known game to display visuals on a video monitor.
To play OXO, the player would enter input using a rotary telephone controller, and output was displayed on the computer's 35×16 dot matrix cathode ray tube. Each game was played against an artificially intelligent opponent.
- "A.S.Douglas' 1952 Noughts and Crosses game". Pong-Story. Retrieved 2013-05-21.
- Edsac Simulator: An emulator of the EDSAC, including the code for OXO
- PONG-Story: A.S. Douglas' 1952 Noughts and Crosses game
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