3. Atari 2600 (1977)
This console is recognized as the bedrock of the video game industry. Following the Magnavox Odyssey, Atari released a vast upgrade only 1 year later. The Atari 2600 transcended the video games into the mainstream and won the hearts of many. Household favorites like Pac-Man, Space Invaders, and Missile Command were sweeping the nation. Eventually, the Atari 2600 propelled the company to become a $2 Billion-dollar business.