Although the history of computer and video games spans almost five decades, computer and video games themselves did not become part of the popular culture until the late 1970s.

The beginning

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1947 is believed to be the first year when a game was designed for playing on a Cathode Ray Tube (CRT). This very simple game was designed by Thomas T. Goldsmith Jr. and Estle Ray Mann. A patent application was filed on January 25th, 1947 and U.S. Patent #2 455 992 issued on Dec 14th, 1948. Though the filing date was in 1947, the game was probably designed earlier in 1946. The system used eight vacuum tubes (four 6Q5 triodes and four 6V6 tetrodes) and simulated a missile being fired at a target, probably inspired by radar displays used during World War II. Several knobs allowed adjusting the curve and speed of the moving point representing the missile. Because graphics could not be drawn electronically at the time, small targets drawn on a simple overlay were placed on the CRT by the builder of this game. It is believed to be the earliest system specifically designed for game play on a CRT screen.

A.S. Douglas developed OXO, a graphical version of noughts and crosses (tic-tac-toe), in 1952 at the University of Cambridge in order to demonstrate his thesis on human-computer interaction. It was played on the now archaic EDSAC computer, which used a cathode ray tube for a visual display. In spite of its technological antiquity, the game is still playable on an emulator available on the Internet.

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