"Only if it turns out that reality is actually nothing more than a holographic illusion created by the interplay of subatomic particles on a vast two-dimensional membrane."
This article covers a subject that has been deemed non-canon by either the author or the Back to the Future licensees, and thus should not be taken as a part of the "real" Back to the Future universe.
The Atari 2600, known as the Atari Video Computer System before 1982, was a video game console that was released on September 11, 1977. It popularized the programmable cartridge format, and was the most popular video game system in the United States until 1985, when it was overtaken by the Nintendo Entertainment System.
Note: The following section is considered non-canon or is disputed in canonicity.