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.
The first coin-operated video arcade game, Galaxy Game, was launched in September 1971 by Bill Pitts and Hugh Tuck. However, it was beaten to the commercial market by Computer Space, launched two months later by Nolan Bushnell and Ted Dabney. In November 1972 Bushnell launched PONG for his Atari company.