Definition of "Atari"
Atari
noun
plural Ataris
(video games) An Atari video game system or computer, such as the Atari 2600 or Atari ST.
Quotations
Whatever the reason, you've found yourself wanting an Atari once again. Yes, the very first video game company did produce many different consoles, but when I say "an Atari" you know what I'm talking about: the Video Computer System, a.k.a. the VCS, a.k.a. the 2600, a.k.a. the Atari.
2005, Chris Kohler, Retro Gaming Hacks, O'Reilly, page 8