For married dependents who are under the age of 65 and not blind, you generally must file a federal income tax return if your unearned income was more than $950; if your earned income was over $5,950; or if your gross income was at least $5 and your spouse files a separate return and itemizes deductions.
The Atari 2600 came out in 1977. Originally known as the VCS or  Video Computer System, it was renamed to it's catalog number  (CX-2600) in 1982.
About 6 additional games were available for purchase. The system was developed by Atari's Cyan Engineering-a group of engineers formed in 1975 to research next-generation video game systems.