The+Evolution+of+Video+Games

From "Break Into The Game Industry: How to Get A Job Making Video Games" by Ernest Adams

====**In 1952,** **A.S. Douglas** wrote his PhD degree at **the University of Cambridge** on Human-Computer interraction. Douglas created the first graphical computer game - a version of Tic-Tac-Toe. The game was programmed on a EDSAC vaccuum-tube computer, which had a cathode ray tube display.====