The origins of video games date back to the 1950s, with the first experiments with electronic computers. Simple games such as OXO (a tic-tac-toe game) and Tennis for Two, a tennis simulator, were developed. The 1960s saw the creation of Spacewar!, a space combat game considered one of the first video games. The 1970s marked the beginning of commercial popularity with games like Pong and the rise of home consoles with the Magnavox Odyssey.